key: cord-0555212-8e9tmi3l authors: Duan, Yan; Coutinho, Joana T.; Rosaleny, Lorena E.; Cardona-Serra, Salvador; Baldov'i, Jos'e J.; Gaita-Arino, Alejandro title: Data mining, dashboard and statistical analysis: a powerful framework for the chemical design of molecular nanomagnets date: 2021-03-04 journal: nan DOI: nan sha: 9cf5d7ff8ebeb023e9d5ebf00ab4b24fbfbd8ef7 doc_id: 555212 cord_uid: 8e9tmi3l Two decades of intensive research in lanthanide-based molecular nanomagnets have brought the magnetic memory in molecules from liquid helium to liquid nitrogen temperature. In the pursuit of new derivatives with improved operational temperatures, several"rational"strategies have been proposed and applied through a fluid transfer of knowledge between theoreticians and experimentalists. These have mainly focused on the choice of the magnetic ion and the design of an adequate coordination environment, both in terms of magnetic anisotropy and molecular vibrations. However, much of the progress has been achieved by serendipity, oversimplified theories and chemical intuition. In order to draw conclusions on the chemical design key parameters that govern the physical behavior of molecular nanomagnets in terms of magnetic memory, we apply here a state-of-the-art inferential statistical analysis to a body of over a thousand published experiments. Our analysis shows that the effective barrier derived from an Arrhenius equation displays an excellent correlation with the magnetic memory, and that there are only two promising strategies between all alternatives proposed so far, namely terbium bis-phthalocyaninato sandwiches and dysprosium metallocenes. In addition, we provide an interactive dashboard for visualizing the collected data, which contains all the reported cases between 2003 and 2019. This meta-study aims to dispel widespread theoretical misconceptions and will allow researchers in the field to avoid experimental blind alleys. Two decades of intensive research in lanthanide-based molecular nanomagnets have brought the magnetic memory in molecules from liquid helium to liquid nitrogen temperature. In the pursuit of new derivatives with improved operational temperatures, several "rational" strategies have been proposed and applied through a fluid transfer of knowledge between theoreticians and experimentalists. These have mainly focused on the choice of the magnetic ion and the design of an adequate coordination environment, both in terms of magnetic anisotropy and molecular vibrations. However, much of the progress has been achieved by serendipity, oversimplified theories and chemical intuition. In order to draw conclusions on the chemical design key parameters that govern the physical behavior of molecular nanomagnets in terms of magnetic memory, we apply here a state-of-the-art inferential statistical analysis to a body of over a thousand published experiments. Our analysis shows that the effective barrier derived from an Arrhenius equation displays an excellent correlation with the magnetic memory, and that there are only two promising strategies between all alternatives proposed so far, namely terbium bis-phthalocyaninato sandwiches and dysprosium metallocenes. In addition, we provide an interactive dashboard for visualizing the collected data, which contains all the reported cases between 2003 and 2019. This meta-study aims to dispel widespread theoretical misconceptions and will allow researchers in the field to avoid experimental blind alleys. With the goal of facilitating the chemical design of lanthanide single-ion magnets (SIMs), herein we mined experimental data from over 1400 samples from the first 17 years of SIM research and applied data visualization tools followed by state-of-the-art statistical analysis. This allowed us to obtain a robust data-driven guide on the key factors governing slow relaxation of the magnetization . We created a dataset and a dashboard: a freely accessible online interactive app that allows any user to perform qualitative analyses as well as browsing the database. This statistical study represents the first quantitative and data-supported verification/refutation of several widely held "chemical intuitions" in the field of molecular magnetism. The history of molecular nanomagnets starts at the beginning of the 1990s, when a polynuclear magnetic complex with strong magnetic coupling between d -transition ions was reported to display magnetic hysteresis similar to that of hard bulk magnets, but evidencing a quantum tunneling mechanism for the relaxation of the magnetization. 1, 2 This groundbreaking discovery was a great source of motivation for coordination chemists working in molecular magnetism, and the release of an intensified interdisciplinary collaboration with physicists and materials scientists in what nowadays is considered the hottest topic in the field. The collective magnetic behaviour of each of these single-molecule magnets (SMMs) could be approximated to that of an effective anisotropic spin arising from exchange interactions between the spins of each of the individual metal ions. The reversal of this giant anisotropic spin can occur by populating excited spin states and overcoming an energy barrier through a mechanism that was thought to be analogous to chemical reactions. Hence, it was equally described by an Arrhenius equation, an effective potential barrier ( U eff ) and a pre-exponential factor (τ 0 ). 3 Both parameters were not extracted directly from the hysteresis loop, but rather from the combined frequency-and temperature-dependence of the characteristic maxima in the so-called out-of-phase ac susceptibility (χ''). 3, 4 The experimental fact that magnetic hysteresis was observed only at, or near, liquid-helium temperatures was rationalized mainly by a low value for this barrier U eff ; alarmingly little attention was paid to the pre-exponential factor τ 0 in the Arrhenius equation. 5 Initial models based on effective spin Hamiltonians obtained the relation U eff = DS z ² and concluded that the best strategy to raise U eff and therefore improve the hysteresis temperature ( T hys ) is to maximize the total effective spin ( S ), rather than the magnetic anisotropy ( D ), since the latter is a less straightforward target for the synthetic chemist. 6 Despite great effort toward the synthesis of such systems and an abundance of molecules with ever increasing values of S , very little progress was made in the first decade in terms of increasing U eff or T hys . 7 In the 2000s, a second generation of molecular nanomagnets emerged. 8 This type of single-molecule magnets, commonly known as SIMs, are based on mononuclear complexes containing a single magnetic ion embedded in a coordination environment. These magnetic entities represent the smallest imaginable nanomagnets, with enhanced magnetic anisotropy with respect to the first generation of SMMs, as a result of a strong spin-orbit coupling combined with the crystal-field interaction with surrounding ligands. The same kind of modelling, based on the Arrhenius equation, resulted in effective energy barriers U eff found in SIMs based on rare-earth ions routinely being up to an order of magnitude higher than those of polynuclear metal complexes of the d -block. Same as U eff , the characteristic maxima in the out-of-phase ac susceptibility χ'' moved to higher temperatures, but in contrast the hysteresis temperature T hys did not increase significantly in the first years. After the germinal terbium bis-phthalocyaninato sandwich, different chemical families such as polyoxometalates 9 and metallocenes 10 were synthesized and characterized, also exhibiting slow relaxation of the magnetization of purely molecular origin. The fact that lanthanide SIMs were not restricted to a single chemical strategy, allowing very different kinds of coordination environments, inspired a large community of chemists all over the world to explore many paths in parallel. This has resulted in the reporting of SMM behavior in over 600 complexes and magnetic hysteresis in over 200 complexes, in less than 15 years. A few strategies, derived from seemingly promising results, have been especially prolific. First, phthalocyaninato (Pc) complexes, especially the ones where one of the phthalocyaninato ligands is oxidized and displays an S = 1/2 radical, have presented good properties 11 , inspiring many works centered on Pc and/or radical ligands. Similarly, the introduction of a diamagnetic transition metal ion in the vicinity of the lanthanide was attributed a role in early successes 12 and has been pursued extensively. Later on, the same has happened with metallocene complexes of type LnCp 2 sandwiches, where Cp = cyclopentadienyl dianion, which have given rise to a series of world records. [13] [14] [15] However, besides other approaches that have also been paradigmatic (e.g. the use of radicals, 16, 17 and diketonates 18 ) , no single chemical strategy has dominated the field in terms of reported examples. Indeed, as we will see below, the vast majority of published SIMs result from molecules that are either a combination of chemically distinct ligands in the same complex or are part of a large variety of individually less frequent ligands. 19 , b) LnCp 2 ( T hys = 60 K) 13 , c) a "mixed ligands" complex ( T hys = 30 K) 20 and d) effective origin of the "neighbouring diamagnetic TM" family ( T hys = 11 K) 12 . Indeed, so many studies pursuing independent inspirations have been reported that it is hard for any single scientist to have a proper perspective of what really has been proven to work, despite recent efforts in that direction. [21] [22] [23] Any review of the literature will conclude that both the theoretically-driven design strategies and the free exploration have produced impressive leaps forward, but the fact is that the field risks dedicating valuable time and effort to the exploration of blind alleys due to unverified preconceptions or misunderstandings. This is an opportunity for employing the modern techniques of data analysis and visualization to remedy this knowledge gap. The procedure is labour intensive, since it involves systematically selecting, then reviewing, hundreds of articles and manually extracting from each one the information that is easiest to process, following a consistent protocol. However, after this stage, the data can be analysed with an extensive array of standard statistical and computational tools. From the point of view of the theory, a common working hypothesis is that one or more of the parameters arising from the theoretical fits of the ac magnetometry, such as the effective barrier U eff are well correlated with the experimental values for the properties of interest, such as the hysteresis temperature T hys . In other words, a generally unspoken assumption in the field is that there is a simple relation between our theoretical parameterization and the physical properties we want to optimize to make the systems. This however has not been proven, and has actually been challenged in different ways. 21, 24, 25 Over the years, different theoretical approaches have put the focus on the role of different physical processes and therefore different parameters. [24] [25] [26] [27] Thus, here we also aim to evaluate the relation between different physical parameters, and in particular the accord between the fitted parameters and the experimentally determined properties. Our goal is to produce data-driven guidelines for the chemical design of SIMs, with a secondary goal being understanding the relation between physical variables themselves. We aim to do that by a statistical analysis that quantifies the relationship -or lack thereof-between a series of chemical variables that can be used to describe different lanthanide SIMs and a series of physical variables that have been experimentally determined on the same systems. Dashboards are intuitive graphical software applications for data visualization and information management which recently gained widespread popularity thanks to the web-based dashboards to track COVID-19 in real time, starting with the one hosted by the Johns Hopkins University. 28 In this work, we have developed a user-friendly dashboard-style web application named SIMDAVIS ( S ingle I on M agnet DA ta VIS ualization) to host the full set of the most relevant chemical and physical properties of 1405 SIM samples gathered from 453 scientific articles published between 2003 and 2019. SIMDAVIS will allow the chemical community to interact with and visualize the key relationships between chemical structures and physical parameters in SIMs. Our interactive dashboard can be directly invoked by accessing the internet site where it is located. 29 It is organized in 5 tabs: "ScatterPlots", "BoxPlots", "Histograms", "Data" (with 2 subsections: "View Data" & "Download Data") and "Variables" as we can observe in the tab menu in Fig. 2 . In the SIMDAVIS dashboard, the most versatile source of information is the "ScatterPlots" tab, where the user can represent 9 quantitative physical properties versus one another in a logarithmic scale. It contains a checkbox that allows the user to add a linear regression and it offers the possibility to click on any data point to identify its sample ID, compound and article DOI, facilitating further analysis. In this tab, one can choose between 2 quantitative physical properties to be plotted with respect to each other, as well as a chemical qualitative variable from a dropdown menu, which contains 12 qualitative categorization possibilities. This permits the exploration of hundreds of potential correlations between measured experimental values (such as T hys or T B3 ) and the magnetic parameters fitted from physical measurements (such as U eff , U eff, ff or 0 ), which can be plotted interactively and downloaded as a vectorial PDF file. For example, one can plot the blocking temperature versus the effective barrier, and every data point will be identified by a color, showing to which chemical family it belongs to. This visual estimate on the relation between descriptors of the magnetic behaviour may uncover trends for specific qualitative variables. For each qualitative variable, each of its categories may be shown or hidden checking their corresponding boxes. For instance, if the categorical variable is of chemical nature, such as the chemical family used to encapsulate the lanthanide, a user may choose to only show SIM samples belonging to the LnPc 2 and the LnCp 2 families. The next two tabs display the data in complementary ways. The "BoxPlots" tab allows to examine the distribution of each SIMs quantitative property vs a categorization criterion, e.g. we can see the distribution of U eff values as a function of the elements in the coordination sphere. The boxplot for each category is shown, including the median, the interquartile range (IQR) and the whiskers (1.5xIQR). The "Histogram" tab explores the frequency of different qualitative variables in our dataset. Because of the use of stacked bar graphs the simultaneous analysis of two qualitative variables is available, e.g. we can display, for each chemical family, the number of samples which present magnetic hysteresis. The "Data" tab is a powerful interface to browse the dataset, featuring the possibility to choose the data columns to show, ordering in ascending or descending order and filtering by arbitrary keywords; it also permits downloading all data. Finally, the "Variables" tab gives the user information about the variables contained in the dataset. The goal is now to determine which chemical variables optimize the physical properties. In other words, to perform a main component analysis: what are the main variables the synthetic chemist needs to consider to obtain the desired physical properties? We will first be doing this qualitatively, by analyzing a series of boxplots (see SI section S1) Let us initially focus on U eff together with T B3 , the focus of theoretical and experimental studies respectively. For either parameter, boxplot representations show that the only chemical family with a clearly distinct behavior is the LnPc 2 . The statistical correlation is more important than in the case of the Ln ion, where Dy and Tb are somewhat better than the others, but not as markedly. Similarly, oblate is better than prolate for both properties, whereas non-Kramers ions presents higher T B3 but similar U eff values compared with Kramers ions; here we are in part seeing the influence of the radical phthalocyaninato Tb systems, where the relaxation is slowed down by the spin ½ killing the quantum tunneling but with no significant change in U eff . Other parameters, such as the number or elements of the coordinating donor atoms or the number of coordinated molecules have no significant statistical influence on U eff ; however, complexes with 2 ligands and complexes coordinated by nitrogen present consistently higher T B3 , due to the influence of the LnPc 2 family. Let us now analyze T hys , a magnitude that has been much less studied despite being the main justification for this whole field. Here the results change in interesting ways. Here the only ligand family with a distinct positive behavior is the LnCp 2 family, and similarly carbon is the only markedly good element for the coordination sphere. More surprisingly, Erbium has distinctly high hysteresis temperatures, markedly better -on average-than Dy or Tb; this is in sharp contrast with their relative T B3 values, which are consistently much lower in the case of Er. This can also be an indication that searching for equatorial environments, precisely the ones that favour good magnetic properties in Er, 26 often results in more rigid ligands, and this indicates an underexplored territory. It is certainly possible that certain modifications of [Er(COT) 2 ] − (or other Er record-bearing complexes) designed to optimize the detrimental effect of molecular vibrations may achieve records that are competitive with DyCp 2 . Kramers vs non-Kramers is again shown to be irrelevant, but prolate is consistently better than oblate, again in contrast with the opposite behavior which is observed for T B3 and U eff , and possibly again due to the influence of Er complexes with their more rigid equatorial environments. Finally, both the coordination number and the number of ligands do have an influence on the statistically expected hysteresis temperature, with the best ones being 2 and 7 in the case of the coordination number and just 7 for the number of ligands. As we will discuss below, there are chemical insights to be gained from this. Further insight is provided by histograms representing the reported presence of magnetic hysteresis, whether full or pinched, as a function of the kind of complex (Fig. 3) . Note that we are limited by the minority of the samples where hysteresis or its absence is reported; in the vast majority of the cases this information is lacking. Nevertheless, here it is apparent that certain families such as LnPc 2 (and LnCp 2 ) tend to display (pinched) hysteresis. The "effective barrier": oversimplified, yet meaningful A key question is how much the analyses in this field have been affected by the simplified assumption that SIMs relax via an Orbach mechanism. Let's start by examining the dependency between τ 0 and U eff , the two variables characterizing this process. It has been pointed out that often as U eff is increased, τ 0 decreases in parallel, leaving τ essentially constant. 5 We can now check whether the values of τ 0 and U eff found in the bibliography follow this approximate law indicated for the two-phonon Orbach process in the classical text of Abragam and Bleaney, equation Plotting τ 0 vs U eff reveals an approximate law 1/τ 0 = C * U eff n with n between 2 and 3. Moreover, the data dispersion extends well beyond the expected range, and is skewed towards 10 K -3 s -1 < C < 10⁵ K -3 s -1 (see full analysis in the SI section S5.3). These discrepancies between the experimentally recorded data and the expected equation serve as an independent evaluation of the limitations of a simple Orbach model. The limited (<100) data points in the case of 0,ff and U eff, ff, , seem to indicate a somewhat better agreement with equation (1), with n ≈ 3, C ≈10 2 . Indeed, U eff resulting from an oversimplified model is expected to be less physically meaningful compared with U eff, ff . Given that U eff and the Orbach description seem to be only partially validated in practice, and since we know them to be oversimplifications in theory, a crucial issue that remains is to quantify up to what level the value of U eff (or τ 0 ) are well correlated with the slow relaxation of the magnetization, and whether one needs to employ U eff, ff instead. Let us proceed in increasing order of complexity. A visual inspection in SIMDAVIS shows that, in the few cases where there is simultaneous information on U eff and U eff, ff , their values are very similar (Fig 4a) . Furthermore, this partial information is corroborated by the very similar dependencies of T B3 or T hys vs either U eff or U eff, ff , as well as in the numerical correlations (see SI section S5.1). A categorical analysis (Figs 4b, 4c ) shows that the data dispersion is large, meaning it is impossible to predict the experimental behavior for an individual sample merely from its U eff value. However, it also demonstrates that a qualitative grouping of samples depending on whether they present a maximum in the out-of-phase susceptibility χ'', or hysteresis, pinched or not, has a clear reflection on their U eff values. A more thorough numerical analysis (see SI section S6) confirms these trends. An in-depth statistical analysis of all physical parameters (see SI sections S4, S5, S6) concludes that U eff derived from a simple Arrhenius plot is currently the best single predictor for the physical behavior. This means that, whether we are discussing in terms of the presence of maximum in out-of-phase ac susceptibility or the temperature of said maximum, U eff is a better predictor than τ 0 or, when it appears, U eff of a second Orbach process. The number of studies deriving U eff from a full fit considering the other physical processes is so low, and the correlation of this "true" U eff, ff with the "effective" U eff is so high, that the data do not support the qualitative observation that U eff, ff from a full fit is a better predictor for the hysteresis temperature. This does not contradict previous studies which demonstrated that a variation in the Orbach barrier does not fully explain the differences in retention of magnetisation. 21 We performed a statistical meta-analysis of the first 17 years of the field of lanthanide-based SIMs. We have systematically collected information from over 500 articles and over 1400 samples and built a user-friendly tool for the visualization of all the collected data. Moreover, we carried out an in-depth statistical analysis that allowed grouping the data in clusters based on their chemical and physical properties. From this study, we can highlight two main pieces of information. In the first place, from the point of view of parametric characterization, the simple Arrhenius fit assuming an Orbach process has been proven to be surprisingly useful. This means that, in general, it is worth it to perform this oversimplified theoretical fit, with the confidence that the effective barrier U eff has been proven to present a very good correlation with SMM behavior. Crucially, we have also proven the very different nature of short term magnetic memory in form of the blocking temperature at 100 Hz T B3 and its long term counterpart in the form of hysteresis temperature T hys . Strategies that optimize the former are not necessarily best for the latter. Indeed, in the second place, the chemical roadmap for the preparation of lanthanide coordination complexes with higher T hys is now a little more clear: there are, so far, two highly valuable and well-established chemical families, namely bisphthalocyanine terbium complexes and dysprosium metallocenes. There is therefore value in the optimization within these two families. For example it is now well established that while including a radical in the coordination sphere is not useful by itself, LnPc 2 complexes featuring a radical Pc display enhanced properties. 31 Furthermore, the first studies have been made of reduced (divalent) analogues of DyCp 2 . 32 We find comparatively little value in further pursuing chemical strategies that have been amply explored and never yielded hysteresis above 10 K. On the other hand, we also evidence that there is, of course, value in chemical ingenuity and exploration, in the quest for a third useful family, which according to our results might well be based on equatorial erbium complexes, since these display consistently high T hys values. Note that a few complexes included in our data fall into ill-defined families such as "Mixed ligands" or "Other families", and yet present excellent hysteresis temperatures. It is entirely possible that the next family of record-setters is related to one of promising candidates such as 35 Dy(bbpen)X (X = Cl or Br; H 2 bbpen = N,N′-bis(2-hydroxybenzyl)-N,N′-bis(2-methylpyridyl)ethylenediamine), 36 (NN TBS )DyI(THF) 2 (NN TBS = fc(NHSi t BuMe 2 ) 2 , fc = 1,1′-ferrocenediyl), 37 and [DyLz 2 ( o -vanilin) 2 ] + (Lz = 6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine) 38 ( Fig. 5 ) . For example, two axial phosphine oxide ligands with very bulky substituents seem to function in a similar way as LnCp 2 despite the five equatorial H 2 O molecules. This strategy does not seem to be restricted to phosphine oxides and deserves to be explored further: as we have seen, complexes with 7 ligands have median values of T hys close to 10 K, as high as those with 2 ligands. At the same time, here we offer SIMDAVIS, a dashboard that allows interactive navigation of SIM data. This kind of tool was utterly missing in the field of molecular nanomagnets and paves the way for further studies much beyond the current work. Perhaps more importantly in the wider perspective of design of new materials 39 and new molecules, 40 the data mined in this work may serve in the future as annotated training data set for the development of new web scraping systems to retrieve chemical data, 41, 42 or even word embeddings, 43 from the scientific literature. Single-Molecule Magnets Magnetic bistability in a metal-ion cluster Magnetic Relaxation in Big Magnetic Molecules Magnetic properties of a Mn cluster organic compound Introduction to Molecular Magnetism. 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molecular hybrid (HNEt3)[DyxYb1−x(bpyda)2] (x = 0.135-1) Mononuclear lanthanide complexes incorporating an anthracene group: structural modification, slow magnetic relaxation and multicomponent fluorescence emissions in Dy compounds Slow magnetic relaxation in tris(diphosphanylamido) and tetra(phosphanoamido) dysprosium complexes Slow Magnetic Relaxation in a Hydrogen-Bonded 2D Array of Mononuclear Dysprosium(III) Oxamates Subcomponent Self-Assembly of Rare-Earth Single-Molecule Magnets An Organometallic Building Block Approach To Produce a Multidecker 4f Single-Molecule Magnet Synthesis and characterisation of a lanthanide-capped dodecavanadate cage Slow Magnetic Relaxation in Condensed versus Dispersed Dysprosium(III) Mononuclear Complexes Crystal Structure, Multiplex Photoluminescence, and Magnetic Properties of a Series of Lanthanide Coordination Polymers Based on Quinoline Carboxylate Ligand Heterodinuclear Lanthanoid-Containing Polyoxometalates: Stepwise Synthesis and Single-Molecule Magnet Behavior Lanthanide based coordination polymers chill, relax under magnetic field and also fluoresce Luminescent, magnetic and ferroelectric properties of noncentrosymmetric chain-like complexes composed of nine-coordinate lanthanide ions A Series of Tetrathiafulvalene-Based Lanthanide Complexes Displaying Either Single Molecule Magnet or Luminescence-Direct Magnetic and Photo-Physical Correlations in the Ytterbium Analogue Syntheses, Structures, and Magnetic Properties of seven-coordinate Lanthanide Porphyrinate or Phthalocyaninate Complexes with Kläui's Tripodal Ligand Syntheses, Structures, and Magnetic and Luminescence Properties of a New DyIII-Based Single-Ion Magnet Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds. Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature Slow relaxation processes of salen type Dy2 complex and 1D ionic spiral Dyn coordination polymer New polyoxometalate-based mononuclear lanthanide complexes with slow relaxation of magnetization Magnetic Blocking at 10 K and a Dipolar-Mediated Avalanche in Salts of the Bis(η8-cyclooctatetraenide) Complex [Er(COT)2]− Influence of Intramolecular f-f Interactions on Nuclear Spin Driven Quantum Tunneling of Magnetizations in Quadruple-Decker Phthalocyanine Complexes Containing Two Terbium or Dysprosium Magnetic Centers Magnetic relaxation pathways in lanthanide single-molecule magnets Ionothermal synthesis of two oxalate-bridged lanthanide(iii) chains with slow magnetization relaxation by using a deep eutectic solvent Ferrocene-based compartmental ligand for the assembly of neutral ZnII/LnIII heterometallic complexes Single-Molecule Magnet with Quantifiable Zero-Field Slow Relaxation of Magnetization Highly Reduced Double-Decker Single-Molecule Magnets Exhibiting Slow Magnetic Relaxation M = Zn/Cu) Building Units: Their Assembly, Structures, and Magnetic Properties Seven-Coordinate Lanthanide Sandwich-Type Complexes with a Tetrathiafulvalene-Fused Schiff Base Ligand Single-molecule magnet [Tb(hfac)3(2pyNO)] (2pyNO = t-butyl 2-pyridyl nitroxide) with a relatively high barrier of magnetization reversal An NCN-pincer ligand dysprosium single-ion magnet showing magnetic relaxation via the second excited state Slow magnetic relaxation in lanthanide ladder type coordination polymers Tb and Dy): synthesis, structure, and magnetic properties Fast magnetic relaxation in an octahedral dysprosium tetramethyl-aluminate complex Effect of the capping ligand on luminescent erbium(iii) β-diketonate single-ion magnets Effect of f-f interactions on quantum tunnelling of the magnetization: mono-and dinuclear Dy(iii) phthalocyaninato triple-decker single-molecule magnets with the same octacoordination environment Heterodinuclear MII-LnIII single molecule magnets constructed from exchange-coupled single ion magnets A SIM-MOF: Three-Dimensional Organisation of Single-Ion Magnets with Anion-Exchange Capabilities The Metallofullerene Field-Induced Single-Ion Magnet HoSc 2 N@C 80 Two Heterometallic Ionic Compounds with Isolated Complex Units: Field-Induced Single-Ion Magnet (SIM) Behavior Observed from a Mononuclear Dysprosium(III) Complex Magnetic Studies of Redox-Active Tetrathiafulvalene-Based Complexes: Dysprosium vs. Ytterbium Analogues Calix[4]arene-Supported Mononuclear Lanthanide Single-Molecule Magnet Tuning the Coordination Geometries and Magnetic Dynamics of [Ln(hfac)4]− through Alkali Metal Counterions Bifunctional ZnIILnIII Dinuclear Complexes Combining Field Induced SMM Behavior and Luminescence: Enhanced NIR Lanthanide Emission by 9-Anthracene Carboxylate Bridging Ligands Structural and Electronic Dependence of the Single-Molecule-Magnet Behavior of Dysprosium(III) Complexes Cyanomethylene-bis(phosphonate)-Based Lanthanide Complexes: Structural, Photophysical, and Magnetic Investigations Influence of an Inner-Sphere K+ Ion on the Magnetic Behavior of N23-Radical-Bridged Dilanthanide Complexes Isolated Using an External Magnetic Field The slow magnetic relaxation regulated by ligand conformation of a lanthanide single-ion magnet Structure, Luminescence, and Magnetic Properties of a Single-Ion Magnet 'mer'-[Tris(N-[(imidazol-4-yl)-methylidene]-dl-phenylalaninato)terbium(III) and Related 'fac'-dl-Alaninato Derivative Single-Ion Magnetism in a Luminescent Er3+β-Diketonato Complex with Multiple Relaxation Mechanisms Local Coordination Geometry Perturbed β-Diketone Dysprosium Single-Ion Magnets Magnetic Relaxations Arising from Spin-Phonon Interactions in the Nonthermally Activated Temperature Range for a Double-Decker Terbium Phthalocyanine Single Molecule Magnet Terbium(III) and Yttrium(III) Complexes with Pyridine-Substituted Nitronyl Nitroxide Radical and Different β-Diketonate Ligands. Crystal Structures and Magnetic and Luminescence Properties X-ray Crystallographic Analysis of a Tailor-Made Bis(phthalocyaninato)-TbIIISingle-Molecule Magnet as a Fundamental Unit for Supramolecular Spintronic Devices Construction of a General Library for the Rational Design of Nanomagnets and Spin Qubits Based on Mononuclear f-Block Complexes. The Polyoxometalate Case Equatorially Coordinated Lanthanide Single Ion Magnets Influence of Pyrazolate vs N-Heterocyclic Carbene Ligands on the Slow Magnetic Relaxation of Homoleptic Trischelate Lanthanide(III) and Uranium(III) Complexes Crystal Field Splitting of the Ground State of Terbium(III) and Dysprosium(III) Complexes with a Triimidazolyl Tripod Ligand and an Acetate Determined by Magnetic Analysis and Luminescence Magnetic relaxation in mononuclear Tb complex involving a nitronyl nitroxide ligand Single-Molecule-Magnet Behavior in the Family of OETAP=Octa(ethyl)tetraazaporphyrin) Oxalato-Bridged Neutral Octanuclear Heterometallic Complexes Ox = (C2O4)2-): Synthesis, Structure, Magnetic and Luminescent Properties Rectangle versus Square Oxalate-Connective Tetralanthanide Cluster Anchored in Lacunary Lindqvist Isopolytungstates: Syntheses, Structures, and Properties Redox Modulation of Magnetic Slow Relaxation in a 4f-Based Single-Molecule Magnet with a 4d Carbon-Rich Ligand Two Isostructural 3D Lanthanide Coordination Networks (Ln = Gd3+, Dy3+) with Squashed Cuboid-Type Nanoscopic Cages Showing Significant Cryogenic Magnetic Refrigeration and Slow Magnetic Relaxation Syntheses, Structure, and Properties of Mixed Cp-Amidinate Rare-Earth-Metal(III) Complexes Unusual Gd-nitronyl nitroxide antiferromagnetic coupling and slow magnetic relaxation in the corresponding Tb analogue Slow magnetic relaxation of light lanthanide-based linear LnZn2 trinuclear complexes Dinuclear lanthanide(iii)/zinc(ii) complexes with methyl 2-pyridyl ketone oxime Single molecule magnet of flexible Salen-type dysprosium coordination polymer with 1D ionic chain structure Oxalato-Bridged Lanthanide-Centered Pentanuclear Complexes -Synthesis, Crystal Structures and Magnetic Properties Multiple Single-Molecule Magnet Behaviors in Dysprosium Dinuclear Complexes Involving a Multiple Functionalized Tetrathiafulvalene-Based Ligand Tuning the Origin of Magnetic Relaxation by Substituting the 3d or Rare-Earth Ions into Three Isostructural Cyano-Bridged 3d-4f Heterodinuclear Compounds Luminescence and Single-Molecule Magnet Behavior in Lanthanide Complexes Involving a Tetrathiafulvalene-Fused Dipyridophenazine Ligand Does the thermal evolution of molecular structures critically affect the magnetic anisotropy? Linear 3d-4f compounds: synthesis, structure, and determination of the d-f magnetic interaction Cu(ii)-Dy(iii) and Co(iii)-Dy(iii) based single molecule magnets with multiple slow magnetic relaxation processes in the Cu(ii)-Dy(iii) complex A trimetallic strategy towards ZnII4DyIII2CrIII2 and ZnII4DyIII2CoIII2 single-ion magnets Syntheses, structures, and magnetic properties of homodinuclear lanthanide complexes based on dinucleating Schiff base ligands Anion-Triggered Modulation of Structure and Magnetic Properties of Copper(I)-Dysprosium(III) Complexes Derived from 1-Hydroxybenzotriazolate Effects of f-f Interactions on the Single-Molecule Magnet Properties of Terbium(III)-Phthalocyaninato Quintuple-Decker Complexes Half-Sandwich Complexes of DyIII: A Janus-Motif with Facile Tunability of Magnetism New Family of Lanthanide-Based Complexes with Different Scorpionate-Type Ligands: A Rare Case Where Dysprosium and Ytterbium Analogues Display Single-Ion-Magnet Behavior A Single-Ion Magnet Based on a Heterometallic CoIII2DyIIIComplex Amending the Anisotropy Barrier and Luminescence Behavior of Heterometallic Trinuclear Linear [MIILnIIIMII] (LnIII=Gd, Tb, Dy; MII=Mg/Zn) Complexes by Change from Divalent Paramagnetic to Diamagnetic Metal Ions Lanthanide phosphonates with pseudo-D5h local symmetry exhibiting magnetic and luminescence bifunctional properties Azacyclo-auxiliary ligand-tuned SMMs of dibenzoylmethane Dy(iii) complexes Self-assembly and magnetic behavior of 2-aldehyde-8-hydroxyquinolinate-based lanthanide complex Two new mononuclear tri-spin lanthanide-nitronyl nitroxide radical complexes: Syntheses, structure and magnetic properties Magnetic and Photo-Physical Properties of Lanthanide Dinuclear Complexes Involving the 4,5-Bis(2-Pyridyl-N-Oxidemethylthio)-4′,5′-Dicarboxylic Acid-Tetrathiafulvalene Record High Single-Ion Magnetic Moments Through 4fn5d1 Electron Configurations in the Divalent Lanthanide Complexes [(C5H4SiMe3)3Ln]− Comprehensive Spectroscopic Determination of the Crystal Field Splitting in an Erbium Single-Ion Magnet Exploiting single-molecule magnets of β-diketone dysprosium complexes with C3v symmetry: suppression of quantum tunneling of magnetization Placing a crown on DyIII -a dual property LnIII crown ether complex displaying optical properties and SMM behaviour Two Lanthanide-nitronyl nitroxide radicals compounds with slow magnetic relaxation behavior Field-induced single-ion magnetic behaviour in a highly luminescent Er3+ complex Crystal Structure, and Single-Molecule Magnetic Properties of a Salen-type Zn-Dy-Zn Complex. Zeitschrift für anorganische und allgemeine Chemie Slow Magnetic Relaxation in Uranium(III) and Neodymium(III) Cyclooctatetraenyl Complexes Analysis of the electrostatics in DyIII single-molecule magnets: the case study of Dy(Murex) A series of heterospin complexes based on lanthanides and pyridine biradicals: synthesis, structure and magnetic properties Magnetic and photo-physical investigations into DyIII and YbIII complexes involving tetrathiafulvalene ligand Single-molecule magnet involving strong exchange coupling in terbium(iii) complex with 2,2′-bipyridin-6-yl tert-butyl nitroxide Constructing supramolecular grids: from 4f square to 3d-4f grid Macroscopic Hexagonal Tubes of 3 d-4 f Metallocycles Phenalenyl-based mononuclear dysprosium complexes Lanthanoid single-ion magnets with the LnN10 coordination geometry Yellow to greenish-blue colour-tunable photoluminescence and 4f-centered slow magnetic relaxation in a cyanido-bridged DyIII(4-hydroxypyridine)-CoIII layered material White Light Emissive DyIII Single-Molecule Magnets Sensitized by Diamagnetic Format 'text' for Enchaining EDTA-chelated lanthanide molecular magnets into ordered 1D networks A series of dinuclear lanthanide(iii) complexes constructed from Schiff base and β-diketonate ligands: synthesis, structure, luminescence and SMM behavior Construction of multifunctional materials based on Tb3+and croconic acid, directed by K+cations: synthesis, structures, fluorescence, magnetic and ferroelectric behaviors First coordination compounds based on a bis(imino nitroxide) biradical and 4f metal ions: synthesis, crystal structures and magnetic properties Solvent triggered structural diversity of triple-stranded helicates: single molecular magnets Bis-phenoxido and bis-acetato bridged heteronuclear {CoIIIDyIII} single molecule magnets with two slow relaxation branches Ho and Er) complexes in a bent geometry. Field-induced single-ion magnetic behavior of the ErIII and TbIII analogues Single ion magnets based on lanthanoid polyoxomolybdate complexes Tuning the Magnetoluminescence Behavior of Lanthanide Complexes Having Sphenocorona and Cubic Coordination Geometries Mono-and Dinuclear Rare-Earth Chlorides Ligated by a Mesityl-Substituted β-Diketiminate Study of the influence of magnetic dilution over relaxation processes in a Zn/Dy single-ion magnet by correlation between luminescence and magnetism Metallogrid Single-Molecule Magnet: Solvent-Induced Nuclearity Transformation and Magnetic Hysteresis at 16 K Metallosupramolecular Coordination Complexes: The Design of Heterometallic 3d-4f Gridlike Structures Modulating spin dynamics of LnIII-radical complexes by using different coligands Binuclear Lanthanide-Radical Complexes Featuring Two Centers with Different Magnetic and Luminescence Properties Weak DyIII-DyIII Interactions in DyIII-Phthalocyaninato Multiple-Decker Single-Molecule Magnets Effectively Suppress Magnetic Relaxation Magnetization dynamics of a heterometallic Dy-isocarbonyl complex Dy(III) complexes: Synthesis, structure and magnetic properties Syntheses, structures, photoluminescence, and magnetism of a series of discrete heavy lanthanide complexes based on a tricarboxylic acid Four CoII-GdIII mixed-metal phosphonate clusters as molecular magnetic refrigerants Water inclusion mediated structural diversity and the role of H-bonds in molecular assemblies of manganese(III) bicompartmental Schiff-base complexes The deposition of PbS and PbSe thin films from lead dichalcogenoimidophosphinates by AACVD Novel binuclear manganese(III), cobalt(III) and chromium(III) complexes for the alternating ring-opening copolymerization of cyclohexene oxide and maleic anhydride Complexes of rhodium and platinum with 4,6-dinitro-5,7-dihydroxybenzo[1,2-c Magnetic double-tartaric bridging mono-lanthanide substituted phosphotungstates with photochromic and switchable luminescence properties Synthesis, structure, and magnetic properties of lanthanide ferrocenoylacetonates with nitrate and 2,2′-bipyridine ligands A Stable Pentagonal Bipyramidal Dy(III) Single-Ion Magnet with a Record Magnetization Reversal Barrier over 1000 K Symmetry-Supported Magnetic Blocking at 20 K in Pentagonal Bipyramidal Dy(III) Single-Ion Magnets Multiple Magnetization Reversal Channels Observed in a 3d-4f Single Molecule Magnet. Magnetochemistry 2, 27 Modulating the Slow Relaxation Dynamics of Binuclear Dysprosium(III) Complexes through Coordination Geometry. Magnetochemistry 2, 35 Correlation in the Textbook Dysprosium(III) Nitrate Single-Ion Magnet. Magnetochemistry 2, 41 Slow Magnetic Relaxation of Lanthanide(III) Complexes with a Helical Ligand Two dysprosium complexes based on 8-hydroxyquinoline Schiff base: Structures, luminescence properties and single-molecule magnets behaviors Luminescent DyIII single ion magnets with same N6O3 donor atoms but different donor atom arrangements, 'fac'-[DyIII(HLDL-ala)3]·8H2O and 'mer Solvent-and metal-directed lanthanide-organic frameworks based on pamoic acid: observation of slow magnetization relaxation, magnetocaloric effect and luminescent sensing Trigonal (-3) symmetry octahedral lanthanide(III) complexes of zwitterionic tripodal ligands: luminescence and magnetism Fine-Tuning of the Coordination Environment To Regulate the Magnetic Behavior in Solvent/Anion-Dependent DyIII Compounds: Synthesis, Structure, Magnetism, and Ab Initio Calculations Transition metal ion-directed magnetic behaviors observed in an isostructural heterobinuclear system Boratabenzene)(cyclooctatetraenyl) lanthanide complexes: a new type of organometallic single-ion magnet An unprecedented zero field neodymium(iii) single-ion magnet based on a phosphonic diamide Improved slow magnetic relaxation in optically pure helicene-based DyIII single molecule magnets Syntheses, structures and magnetic properties of a series of mono-and di-nuclear dysprosium(iii)-crown-ether complexes: effects of a weak ligand-field and flexible cyclic coordination modes Can Non-Kramers TmIII Mononuclear Molecules be Single-Molecule Magnets (SMMs)? Chemistry -A Relaxation Dynamics and Magnetic Anisotropy in a Low-Symmetry DyIIIComplex Slow Relaxation of Magnetization in an Isostructural Series of Zinc-Lanthanide Complexes: An Integrated EPR and AC Susceptibility Study Rational Design of Lanthanoid Single-Ion Magnets: Predictive Power of the Theoretical Models Lanthanide Tetrazolate Complexes Combining Single-Molecule Magnet and Luminescence Properties: The Effect of the Replacement of Tetrazolate N3by β-Diketonate Ligands on the Anisotropy Energy Barrier Highly Axial Magnetic Anisotropy in a N3O5Dysprosium(III) Coordination Environment Generated by a Merocyanine Ligand A monometallic lanthanide bis(methanediide) single molecule magnet with a large energy barrier and complex spin relaxation behaviour High symmetry or low symmetry, that is the question -high performance Dy(iii) single-ion magnets by electrostatic potential design Elucidating the Magnetic Anisotropy and Relaxation Dynamics of Low-Coordinate Lanthanide Compounds Cis-trans isomerism modulates the magnetic relaxation of dysprosium single-molecule magnets Thermostability and photoluminescence of Dy(iii) single-molecule magnets under a magnetic field An air-stable Dy(iii) single-ion magnet with high anisotropy barrier and blocking temperature Spectroscopic and magnetic studies of erbium(III)-TEMPO complex as a potential single-molecule magnet: Interplay of the crystal-field and exchange coupling effects Dysprosium-and Ytterbium-Based Complexes Involving Tetrathiafulvalene Derivatives Functionalised with 2,2′-Bipyridine or 2,6-Di(pyrazol-1-yl)-4-pyridine Switching of Slow Magnetic Relaxation Dynamics in Mononuclear Dysprosium(III) Compounds with Charge Density From Monomeric Species to One-Dimensional Chain: Enhancing Slow Magnetic Relaxation through Coupling Mononuclear Fragments in Ln-rad System Evaporable lanthanide single-ion magnet Lanthanide salen-type complexes exhibiting single ion magnet and photoluminescent properties Magnetization Dynamics Changes of Dysprosium(III) Single-Ion Magnets Associated with Guest Molecules Dysprosium(iii) complexes with a square-antiprism configuration featuring mononuclear single-molecule magnetic behaviours based on different β-diketonate ligands and auxiliary ligands Synthesis, structure, and physical properties of new rare earth ferrocenoylacetonates A distinct magnetic anisotropy enhancement in mononuclear dysprosium-sulfur complexes by controlling the Dy-ligand bond length Auxiliary ligand field dominated single-molecule magnets of a series of indole-derivative β-diketone mononuclear Dy(iii) complexes Impact of the coordination environment on the magnetic properties of single-molecule magnets based on homo-and hetero-dinuclear terbium(iii) heteroleptic tris(crownphthalocyaninate) Muffin-like lanthanide complexes with an N5O2-donor macrocyclic ligand showing field-induced single-molecule magnet behaviour Two 3D Isostructural Ln(III)-MOFs: Displaying the Slow Magnetic Relaxation and Luminescence Properties in Detection of Nitrobenzene and Cr2O72 Single-molecule magnet behavior in a mononuclear dysprosium(iii) complex with 1-methylimidazole Light Lanthanide Complexes with Crown Ether and Its Aza Derivative Which Show Slow Magnetic Relaxation Behaviors Rational design of triple-bridged dinuclear ZnIILnIII-based complexes: a structural, magnetic and luminescence study Slow relaxation dynamics of a mononuclear Er(iii) complex surrounded by a ligand environment with anisotropic charge density 3d-4f heterometallic trinuclear complexes derived from amine-phenol tripodal ligands exhibiting magnetic and luminescent properties Half-sandwich lanthanide crown ether complexes with the slow relaxation of magnetization and photoluminescence behaviors Pursuit of Record Breaking Energy Barriers: A Study of Magnetic Axiality in Diamide Ligated DyIII Single-Molecule Magnets An air stable radical-bridged dysprosium single molecule magnet and its neutral counterpart: redox switching of magnetic relaxation dynamics A family of 2p-4f complexes based on indazole radical: Syntheses, structures and magnetic properties A dysprosium(III) complex based on Schiff-base ligand exhibiting two magnetic relaxation processes Slow Magnetic Relaxation in Chiral Helicene-Based Coordination Complex of Dysprosium Electrostatic Potential Determined Magnetic Dynamics Observed in Two Mononuclear β-Diketone Dysprosium(III) Single-Molecule Magnets Tm(iii) complexes undergoing slow relaxation of magnetization: exchange coupling and aging effects Lanthanide complexes involving multichelating TTF-based ligands Magnetoluminescent Bifunctional Dysprosium-Based Phosphotungstates with Synthesis and Correlations between Structures and Properties From a Piano Stool to a Sandwich: A Stepwise Route for Improving the Slow Magnetic Relaxation Properties of Thulium Role of the Diamagnetic Zinc(II) Ion in Determining the Electronic Structure of Lanthanide Single-Ion Magnets Electronic Structure and Magnetic Anisotropy in Lanthanoid Single-Ion Magnets with C3 Symmetry: The Ln(trenovan) Series Dynamic Magnetic and Optical Insight into a High Performance Pentagonal Bipyramidal DyIII Single-Ion Magnet Mononuclear Dy(III) complex based on bipyridyl-tetrazolate ligand with field-induced single-ion magnet behavior and luminescent properties Slow magnetic relaxations in a ladder-type Dy(iii) complex and its dinuclear analogue Designing Ligands to Isolate ZnLn and Zn2Ln Complexes: Field-Induced Single-Ion Magnet Behavior of the ZnDy, Zn2Dy, and Zn2Er Analogues Molecular Orientation of a Terbium(III)-Phthalocyaninato Double-Decker Complex for Effective Suppression of Quantum Tunneling of the Magnetization Synthesis and Electronic Structures of Heavy Lanthanide Metallocenium Cations Exchange-coupled terbium-radical complex Tb-phNO showing slow reversal of magnetization Single molecular magnet of lanthanide coordination polymer with 1D helical-like chain based on flexible Salen-type ligand Slow Magnetic Relaxation in a Lanthanide-[1]Metallocenophane Complex Spin-Parity Behavior in the Exchange-Coupled Lanthanoid-Nitroxide Molecular Magnets A Six-Coordinate Dysprosium Single-Ion Magnet with Trigonal-Prismatic Geometry Influence of the Ligand Field on the Slow Relaxation of Magnetization of Unsymmetrical Monomeric Lanthanide Complexes: Synthesis and Theoretical Studies Slow Magnetic Relaxation in a Dysprosium Ammonia Metallocene Complex A series of triple-stranded lanthanide(III) helicates: Syntheses, structures and single molecular magnets A new series of mononuclear lanthanide single molecule magnets based on sandwich-type germanomolybdates [Ln(GeMo11O39)2]13− (Ln = ErIII, GdIII, DyIII or TbIII) Mononuclear Lanthanide Complexes: Energy-Barrier Enhancement by Ligand Substitution in Field-Induced DyIII SIMs Custom Coordination Environments for Lanthanoids: Tripodal Ligands Achieve Near-Perfect Octahedral Coordination for Two Dysprosium-Based Molecular Nanomagnets Magnetic Anisotropy along a Series of Lanthanide Polyoxometalates with Pentagonal Bipyramidal Symmetry A New Bis(phthalocyaninato) Terbium Single-Ion Magnet with an Overall Excellent Magnetic Performance Mononuclear Dysprosium Thiocyanate Complexes with 2,2′-Bipyridine and 1,10-Phenanthroline: Synthesis, Crystal Structures, SIM Behavior, and Solid-Phase Transformations Proton Control of the Lanthanoid Single-Ion Magnet Behavior of a Double-Decker Complex with an Indolenine-Substituted Annulene Ligand Photoluminescent and Slow Magnetic Relaxation Studies on Lanthanide(III)-2,5-pyrazinedicarboxylate Frameworks Electrostatic Potential Determined Magnetic Dynamics Observed in Two Mononuclear β-Diketone Dysprosium(III) Single-Molecule Magnets Molecular magnetic hysteresis at 60 kelvin in dysprosocenium Two Families of Rare-Earth-Substituted Dawson-type Monomeric and Dimeric Phosphotungstates Functionalized by Carboxylic Ligands One mononuclear single-molecule magnet derived from Dy(III) and dmbpy (dmbpy = 4,4′-dimethyl-2,2′-dipyridyl) Novel bis(phthalocyaninato) rare earth complexes with the bulky and strong electron-donating dibutylamino groups: synthesis, spectroscopy, and SMM properties Electron-donating effect dominated 5,6-dimethoxy-2-(2,2,2-trifluoroethyl)-1-indone dysprosium SMM Lanthanide(III) Sandwich and Half-Sandwich Complexes with Bulky Cyclooctatetraenyl Ligands: Synthesis, Structures, and Magnetic Properties A Dysprosium Metallocene Single-Molecule Magnet Functioning at the Axial Limit Axial Ligand Field in D4d Coordination Symmetry: Magnetic Relaxation of Dy SMMs Perturbed by Counteranions Photophysical and Magnetic Properties in Complexes Containing 3d/4f Elements and Chiral Phenanthroline-Based Helicate-Like Ligands Rare-Earth Complexes Coordinated by ansa-Bis(amidinate) Ligands with m-Phenylene, 2,6-Pyridinediyl, and SiMe2 Linkers Synthesis and characterisation of new tripodal lanthanide complexes and investigation of their optical and magnetic properties Octahedral Yb(iii) complexes embedded in [CoIII(CN)6]-bridged coordination chains: combining sensitized near-infrared fluorescence with slow magnetic relaxation Single-ion magnetism in seven-coordinate YbIII complexes with distorted D5h coordination geometry Chiral six-coordinate Dy(iii) and Tb(iii) complexes of an achiral ligand: structure, fluorescence, and magnetism Improving the SMM and luminescence properties of lanthanide complexes with LnO9 cores in the presence of ZnII: an emissive Zn2Dy single ion magnet Thermal expansion and magnetic properties of benzoquinone-bridged dinuclear rare-earth complexes Slow magnetisation relaxation in tetraoxolene-bridged rare earth complexes Slow magnetic relaxation in luminescent mononuclear dysprosium(iii) and erbium(iii) pentanitrate complexes with the same LnO10 coordination geometry Magnetic Excitations in Polyoxotungstate-Supported Lanthanoid Single-Molecule Magnets: An Inelastic Neutron Scattering and ab Initio Study Four New Families of Polynuclear Zn-Ln Coordination Clusters. Synthetic, Topological, Magnetic, and Luminescent Aspects Hyperfine-Interaction-Driven Suppression of Quantum Tunneling at Zero Field in a Holmium(III) Single-Ion Magnet Elongation of magnetic relaxation times in a single-molecule magnet through intermetallic interactions: a clamshell-type dinuclear terbium(iii)-phthalocynaninato quadruple-decker complex Multiple Magnetic Relaxation Pathways and Dual-Emission Modulated by a Heterometallic Tb-Pt Bonding Environment Magnetic Anisotropy Switch: Easy Axis to Easy Plane Conversion and Vice Versa Cycloaddition of Anthracene: A Single-Ion to Single-Molecule Magnet and Yellow-Green to Blue-White Emission A Terminal Fluoride Ligand Generates Axial Magnetic Anisotropy in Dysprosium Complexes Low-Coordinate Single-Ion Magnets by Intercalation of Lanthanides into a Phenol Matrix Magnetic Properties of a Terbium-[1]Ferrocenophane Complex: Analogies between Lanthanide-Ferrocenophane and Lanthanide-Bis-phthalocyanine Complexes Dy) Complexes Derived from 4-(Pyridin-2-yl)methyleneamino-1,2,4-triazole: Crystal Structure, Magnetic Properties, and Photoluminescence Chemical and in silico tuning of the magnetisation reversal barrier in pentagonal bipyramidal Dy(iii) single-ion magnets Terbocenium: completing a heavy lanthanide metallocenium cation family with an alternative anion abstraction strategy Slow magnetic dynamics in a family of mononuclear lanthanide complexes exhibiting the rare cubic coordination geometry From double-shelled grids to supramolecular frameworks Supramolecular Approach for Enhancing Single-Molecule Magnet Properties of Terbium(III)-Phthalocyaninato Double-Decker Complexes with Crown Moieties Fabricating Bis(phthalocyaninato) Terbium SIM into Tetrakis(phthalocyaninato) Terbium SMM with Enhanced Performance through Sodium Coordination A Unique LnIII{[3.3.1]GaIII Metallacryptate} Series That Possesses Properties of Slow Magnetic Relaxation and Visible/Near-Infrared Luminescence Slow Magnetic Relaxation in Lanthanoid Crown Ether Complexes: Interplay of Raman and Anomalous Phonon Bottleneck Processes Rare-Earth Cyclobutadienyl Sandwich Complexes: Synthesis, Structure and Dynamic Magnetic Properties Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes Metal-ligand pair anisotropy in a series of mononuclear Er-COT complexes A soft phosphorus atom to 'harden' an erbium(iii) single-ion magnet Magnetic anisotropy investigation on light lanthanide complexes trans to cis photo-isomerization in merocyanine dysprosium and yttrium complexes Synthesis, structure and magnetic properties of tris(pyrazolyl)methane lanthanide complexes: effect of the anion on the slow relaxation of magnetization A neutral auxiliary ligand enhanced dysprosium(iii) single molecule magnet Hybrid organic-inorganic connectivity of NdIII(pyrazine-N,N′-dioxide)[CoIII(CN)6]3− coordination chains for creating near-infrared emissive Nd(iii) showing field-induced slow magnetic relaxation A family of lanthanide compounds with reduced nitronyl nitroxide diradical: syntheses, structures and magnetic properties Magnetic relaxation in [Ln(hfac)4]− anions with [Cu(hfac)-radical]nn+ cation chains as counterions Two {ZnII2DyIII} complexes supported by monophenoxido/dicarboxylate bridges with multiple relaxation processes: carboxylato ancillary ligand-controlled magnetic anisotropy in square antiprismatic DyIII species Slow magnetic relaxation and luminescence properties in lanthanide(iii)/anil complexes The slow magnetic relaxation regulated by the coordination, configuration and intermolecular dipolar field in two mononuclear DyIII single-molecule magnets (SMMs) Mixed chelating ligands used to regulate the luminescence of Ln(iii) complexes and single-ion magnet behavior in Dy-based analogues Single molecule magnetic behaviour in lanthanide naphthalenesulfonate complexes Fine Control of the Metal Environment within Dysprosium-Based Mononuclear Single-Molecule Magnets Luminescence and Single-Molecule-Magnet Behaviour in Lanthanide Coordination Complexes Involving Benzothiazole-Based Tetrathiafulvalene Ligands Modulation of the Coordination Environment around the Magnetic Easy Axis Leads to Significant Magnetic Relaxations in a Series Tb2, Dy2, and Zn2Dy4 Complexes Showing the Unusual Versatility of a Hydrazone Ligand toward Lanthanoid Ions: a Structural and Magnetic Study Magnetic Dynamics of a Neodymium(III) Single-Ion Magnet Dysprosium Compounds with Hula-Hoop-like Geometries: The Influence of Magnetic Anisotropy and Magnetic Interactions on Magnetic Relaxation Hemiporphyrazine-Involved Sandwich Dysprosium Double-Decker Single-Ion Magnets Enantiopure Benzamidinate/Cyclooctatetraene Complexes of the Rare-Earth Elements: Synthesis, Structure, and Magnetism Mononuclear Lanthanide Complexes with 18-Crown-6 Ether: Synthesis, Characterization, Magnetic Properties, and Theoretical Studies Sublimable Single Ion Magnets Based on Lanthanoid Quinolinate Complexes: The Role of Intermolecular Interactions on Their Thermal Stability Heterometallic MIILnIII Complexes with Pentagonal Bipyramidal 3d Centers: Syntheses, Structures, and Magnetic Properties Field-induced Slow Magnetic Relaxation Behavior in a Mononuclear Dy(III) Complex based on 8-Hydroxyquinoline Derivate Ligand. Zeitschrift für anorganische und allgemeine Chemie Field-induced single molecule magnet behavior of a DyIII-NaI one-dimensional chain extended by acetate ions Field-Induced Slow Magnetic Relaxation of Mono-and Dinuclear Dysprosium(III) Complexes Coordinated by a Chloranilate with Different Resonance Forms Self-assembly and SMM properties of lanthanide cyanocobaltate chain complexes with terpyridine as blocking ligand Six-Coordinate Ln(III) Complexes with Various Coordination Geometries Showing Distinct Magnetic Properties The Exploration and Analysis of the Magnetic Relaxation Behavior in Three Isostructural Cyano-Bridged 3d-4f Field-Induced Dysprosium Single-Molecule Magnet Involving a Fused o-Semiquinone-Extended-Tetrathiafulvalene-o-Semiquinone Bridging Triad Homoleptic Lanthanide Complexes Containing a Redox-Active Ligand and the Investigation of Their Electronic and Photophysical Properties III) Complexes with Triphenylphosphine Oxide Ligands: Controlling the Coordination Environment and Magnetic Anisotropy Observation of Magnetodielectric Effect in a Dysprosium-Based Single-Molecule Magnet Achieving white light emission and increased magnetic anisotropy by transition metal substitution in functional materials based on dinuclear DyIII(4-pyridone Excess axial electrostatic repulsion as a criterion for pentagonal bipyramidal DyIII single-ion magnets with high Ueff and TB Structures, Magnetic and Thermodynamic Properties of a 3d-4f Mixed Metal Cluster Slow magnetic relaxation in a neodymium metallocene tetraphenylborate complex Slow Relaxation of the Magnetization in Bis-Decorated Chiral Helicene-Based Coordination Complexes of Lanthanides The Effect of Modifying the Macrocyclic Ring Size on Zn3Ln(Ln= Dy, Er, and Yb) Single-Molecule Magnet Behavior. Zeitschrift für anorganische und allgemeine Chemie Closing the Circle of the Lanthanide-Murexide Series: Single-Molecule Magnet Behavior and Near-Infrared Emission of the NdIII Derivative Salicylideneaniline Complexes: Synthetic, Structural, Spectroscopic, and Magnetic Studies. Magnetochemistry Synthesis, structure and magnetic properties of the dinuclear complex [1,3-C6H4{NC(Ph)N(SiMe3)}2]3Dy2 coordinated by ansa-bis(amidinate) ligands with a m-phenylene linker Slow magnetic relaxation in mononuclear complexes of Tb, Dy, Ho and Er with the pentadentate (N3O2) Schiff-base dapsc ligand An intense luminescent Dy(iii) single-ion magnet with the acylpyrazolonate ligand showing two slow magnetic relaxation processes Thiacalix[4]arene-supported mononuclear lanthanide compounds: slow magnetic relaxation in dysprosium and erbium analogues Investigation of magneto-structural correlation based on a series of seven-coordinated β-diketone Dy(iii) single-ion magnets with C2v and C3v local symmetry Syntheses, Structures, and Magnetic Properties of Symmetric and Dissymmetric Ester-Functionalized 3d-4f Schiff Base Complexes Single Molecule Magnets of Phosphine-and Arsine-Oxides Comparison of the Magnetic Anisotropy and Spin Relaxation Phenomenon of Dinuclear Terbium(III) Phthalocyaninato Single-Molecule Magnets Using the Geometric Spin Arrangement Pentagonal-Bipyramid Ln(III) Complexes Exhibiting Single-Ion-Magnet Behavior: A Rational Synthetic Approach for a Rigid Equatorial Plane Chiral mononuclear Dy(III) complex based on pyrrolidine-dithiocarboxylate S-donors with field-induced single-ion magnet behavior New field-induced single ion magnets based on prolate Er(iii) and Yb(iii) ions: tuning the energy barrierUeffby the choice of counterions within an N3-tridentate Schiff-base scaffold Field-induced single-molecule magnet (SMM) behavior of dinuclear DyIII system Hybrid organic-inorganic mononuclear lanthanoid single ion magnets Dysprosium Single-Molecule Magnets with Bulky Schiff Base Ligands: Modification of the Slow Relaxation of the Magnetization by Substituent Change Detailed Analysis of the Crystal Structures and Magnetic Properties of a Dysprosium(III) Phthalocyaninato Sextuple-Decker Complex: Weak f-f Interactions Suppress Magnetic Relaxation Capping N-Donor Ligands Modulate the Magnetic Dynamics of Dy III β-Diketonate Single-Ion Magnets with D 4 d Symmetry Photoluminescent Lanthanide(III) Single-Molecule Magnets in Three-Dimensional Polycyanidocuprate(I)-Based Frameworks Air-Stable Hexagonal Bipyramidal Dysprosium(III) Single-Ion Magnets with Nearly Perfect D 6 h Local Symmetry Ln-MOFs using a compartmental ligand with a unique combination of hard-soft terminals and their magnetic, gas adsorption and luminescence properties Effect of the change of the ancillary carboxylate bridging ligand on the SMM and luminescence properties of a series of carboxylate-diphenoxido triply bridged dinuclear ZnLn and tetranuclear Zn2Ln2 complexes (Ln = Dy, Er) Single molecule magnet behaviors of Zn4Ln2 (Ln = DyIII, TbIII) complexes with multidentate organic ligands formed by absorption of CO2 in air through in situ reactions Enhancement of magnetic relaxation properties with 3d diamagnetic cations in [ZnIILnIII] and [NiIILnIII], LnIII= Kramers lanthanides A new air-and moisture-stable pentagonal-bipyramidal DyIII single-ion magnet based on the HMPA ligand Lanthanide anthracene complexes: slow magnetic relaxation and luminescence in DyIII, ErIII and YbIII based materials Mononuclear lanthanide complexes assembled from a tridentate NNO donor ligand: design of a DyIII single-ion magnet Synthesis, structure and magnetic properties of a series of dinuclear heteroleptic Zn2+/Ln3+ Schiff base complexes: effect of lanthanide ions on the slow relaxation of magnetization Ligand ratio/solvent-influenced syntheses, crystal structures, and magnetic properties of polydentate Schiff base ligand-Dy(iii) compounds with β-diketonate ligands as co-ligands Towards comparative investigation of Er-and Yb-based SMMs: the effect of the coordination environment configuration on the magnetic relaxation in the series of heteroleptic thiocyanate complexes Comparison of two field-induced ErIII single ion magnets Two mononuclear dysprosium(iii) complexes with their slow magnetic relaxation behaviors tuned by coordination geometry Mononuclear and trinuclear DyIII SMMs with Schiff-base ligands modified by nitro-groups: first triangular complex with a N-N pathway Single-Ion Magnet Investigation of ABAB-Type Tetrachloro-and Tetraalkoxy-Substituted Bis(phthalocyaninato) Terbium Double-Decker with D 2 Multifunctional Lanthanide Complexes Based on Tetraazacyclolamidophenol Ligand with Field-Induced Slow Magnetic Relaxation, Luminescent and SHG Properties Mononuclear Lanthanide Complexes Containing [O-O]-Chelating Sulfonylamidophosphate Type Ligands Bifunctional Mononuclear Dysprosium Complexes: Single-Ion Magnet Behaviors and Antitumor Activities Divalent Thulium Crown Ether Complexes with Field-Induced Slow Magnetic Relaxation Wide-Range UV-to-Visible Excitation of Near-Infrared Emission and Slow Magnetic Relaxation in LnIII(4,4′-Azopyridine-1,1′-dioxide)[CoIII(CN)6]3-Layered Frameworks Effect of One-and Two-Electron Reduction of Terbium(III) Double-Decker Phthalocyanine on Single-Ion Magnet Behavior and NIR Absorption Regulation of Substituent Effects on Configurations and Magnetic Performances of Mononuclear DyIII Single-Molecule Magnets Dinuclear lanthanide-lithium complexes based on fluorinated β-diketonate with acetal group: magnetism and effect of crystal packing on mechanoluminescence Hyperfine coupling and slow magnetic relaxation in isotopically enriched DyIII mononuclear single-molecule magnets A series of dysprosium-based hydrogen-bonded organic frameworks (Dy-HOFs): thermally triggered off → on conversion of a single-ion magnet Single-ion magnet and luminescent properties in a Dy(III) triangular dodecahedral complex Field-induced slow magnetic relaxation in a mononuclear Gd(III) complex Synthetic strategies to {CoIII2LnIII} complexes based on 2-pyridyl oximes (Ln = lanthanide) Luminescent and magnetic properties of mononuclear lanthanide thiocyanates with terpyridine as auxiliary ligand Magnetic properties and theoretical calculations of mononuclear lanthanide complexes with a Schiff base coordinated to Ln(III) ion in a monodentate coordination mode Synthesis and Magnetism of Neutral, Linear Metallocene Complexes of Terbium(II) and Dysprosium(II) Bis-Monophospholyl Dysprosium Cation Showing Magnetic Hysteresis at 48 K Octahedral erbium and ytterbium ion encapsulated in phosphorescent iridium complexes showing field-induced magnetization relaxation Determination of the magnetic principal axes of a dysprosium complex with slow relaxation on a single crystal Synthesis, structures and magnetic properties of [(η9-C9H9)Ln(η8-C8H8)] super sandwich complexes TbIII/3d-TbIII clusters derived from a 1,4,7-triazacyclononane-based hexadentate ligand with field-induced slow magnetic relaxation and oxygen-sensitive luminescence Three chiral one-dimensional lanthanide-ditoluoyl-tartrate bifunctional polymers exhibiting luminescence and magnetic behaviors Slow magnetic relaxation in mononuclear gadolinium(III) and dysprosium(III) oxamato complexes Chiral mononuclear lanthanide complexes derived from chiral Schiff bases: Structural and magnetic studies The authors declare no competing interests.