A dinuclear Co(iii)/Co(ii) complex based on the H₂pmide ligand showing field-induced SMM behaviour

Abstract

We report a combined computational and experimental study of the field-induced SMM behaviour of a Co(ii)/Co(iii) dinuclear complex with a pair-like H-bond intermolecular interaction.

Magnetic Property, Heat Capacity and Crystal Structure of Mononuclear Compounds Based on Substitute Tetrazole Ligand

“…Compound 2 is a Co II (3d 7 ) compound with unpaired electrons, which corresponds to the magnetic moment of Co II ( Figure 5 b). The χ M T value of 2.70 cm 3 K mol −1 at 300 K is larger than the expected pure value of the magnetic isolation spin of 1.87 cm 3 K mol −1 (for Co II , S = 3/2, g = 2.0), indicating that there is an unquenched orbital moment that contributes to the magnetic susceptibility [ 18 ]. The value of χ M T remains almost constant above 80 K, and then decreases to a minimum of 1.41 cm 3 K mol −1 as the temperature decreases to 2 K. This fact indicates the presence of antiferromagnetic coupling in Compound 2 .…”