Pushing up the easy-axis magnetic anisotropy and relaxation times in trigonal prismatic Co II mononuclear SMMs by molecular structure design.
Aritz Landart-GerekaMaría Mar Quesada-MorenoMaría A PalaciosIsmael Francisco Díaz-OrtegaHiroyuki NojiriMykhaylo OzerovJ KrzystekEnrique ColacioPublished in: Chemical communications (Cambridge, England) (2023)
The replacement of pyridine by 1-methyl-imidazol in the arms of a N 6 -tripodal ligand allows preparing two new Co II complexes with quasi-ideal triangular prismatic geometry, which behave as SIMs (Single Ion Magnets) at zero dc field with enhanced axial magnetic anisotropy, magnetic relaxation times and magnetic hysteresis.