3d- and 4f-Based Single Molecule Magnets

Electron Paramagnetic Resonance Spectra of Pentagonal Bipyramidal Gadolinium Complexes

“…The energy barrier in lanthanide SMMs is often related to the crystal field splitting, and this has been regularly confirmed by high-level calculations. − ,,− We have also reported a linear correlation between U eff and R cos(π/(180 – θ)), where R = the Dy-axial ligand distance and θ is the angle at Dy between the axial ligands . The EPR data reported here are rare experimental confirmation that this is correct.…”

“…14−16,18,26−29 We have also reported a linear correlation between U eff and R cos(π/(180 − θ)), where R = the Dy-axial ligand distance and θ is the angle at Dy between the axial ligands. 30 The EPR data reported here are rare experimental confirmation that this is correct. In the future, we will investigate whether this correlation of B 2 0 for Gd 3+ correlates with U eff in other Dy 3+ SMMs.…”

Get under the Umbrella: A Comprehensive Gateway for Researchers on Lanthanide‐Based Single‐Molecule Magnets

“…They can be complemented by the clear and concise book chapter by R. Clérac and R. E. P. Winpenny (2016), [116] book chapters by D. P. Mills et al, [117] C. J. Millios [118] or Y.-Z. Zheng et al [119] and by recent general reviews such as those of M. Yamashita et al, [120] E. Colacio et al, [121] J. M. Zadrozny et al [122] and A. Ehrmann et al [123] in 2021.…”

“…J. Tang et al, propose a similar but condensed review in 2022. [36] R. E. P. Winpenny et al reviewed the field in 2021 [119] focusing on monometallic Dy-SMM, toroics, and radical-bridged 4 f-SMM. The last developments on 4 f-SMM have been reviewed in 2023 [149] by X. Zhang et al…”

Understanding electrostatics and covalency effects in highly anisotropic organometallic sandwich dysprosium complexes [Dy(CmRm)2] (where R = H, SiH3, CH3 and m = 4 to 9): a computational perspective

“…15,[35][36][37][38] Several synthetic routes have been proposed in the literature to achieve axiality, such as by imposing the short Dy-L bonds or utilizing the two planar cyclic π-bonded ligands with attaining the ∠L cent -Dy-L cent bond as close as ∼180°. 13,16,[39][40][41][42][43] In this context, organolanthanide sandwich complexes possessing two planar cyclic π-bonded ligands are the frontrunners in the preparation of SIMs with giant barrier heights (blocking temperature) as high as 1390 cm −1 (80 K) for a series of dysprosocenium complexes. [22][23][24][25]27,[44][45][46] Among the reported Ln(III) based SIMs, magnetic hysteresis has been observed at temperatures as high as 80 K for the [Dy(Cp*)(Cp iPr5 )][B(C 6 F 5 ) 4 ] (Cp* = pentamethylcyclopentadienyl) complex.…”