Pseudo-Tetrahedral vs Pseudo-Octahedral ErIII Single Molecule Magnets and the 'Disruptive' Role of Coordinated TEMPO Radicals

01 March 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Erbium(III) complexes are the most interesting candidates for high-performance single molecule magnets (SMMs) just after dysprosium(III). Herein, we thoroughly explore the underrepresented class of neutral pseudo-tetrahedral erbium(III) SMMs and demonstrate their exceptional slow magnetization dynamics controlled by the Raman relaxation mechanism and the molecular magnetic memory effect in the form of a waist-restricted magnetic hysteresis loop. The influence of the coordinated TEMPO radical on the slow magnetization relaxation performance is also demonstrated and discussed.


SMM molecules
coordination sphere controls
Molecular Magnets
Magnetic Hysteresis
Slow magnetic relaxation
Single Ion Magnets

Supplementary materials

supplementary Information ver 4.6 chemrxiv


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