The magnetic properties of some complexes of higher-valent manganese

Abstract

The magnetic susceptibilities of the compounds [bipy-H₂][MnCl₅], [phen- H₂]-[MnCl₅], [MnCl₃(H₂O)bipy], [MnCl₃(H₂O)phen], [MnF₃(H₂O)phen], [MnCl₃ trpy], [MnCl₄ bipy], [MnCl₃ bipy], [MnCl₃ phen], and [MnO phen₂](ClO₄)₂,0.5H₂O have been determined over the temperature range c. 100-300°K. All compounds appeared to follow a Curie-Weiss law. The Curie-Weiss θ values indicate that the first seven compounds are simple paramagnetics, while the last three are antiferromagnetics. The antiferromagnetic behaviour of these compounds indicates that they have bridged structures.