Paramagnetic cobalt(<scp>III</scp>) compounds of the type [CoN₄X]⁰(XCl,Br,I)

Abstract

The monohalogeno(quadridentate)cobalt(III) compounds, for which “quadridentate” is a nitrogen-donor tricyclic quadridentate dianion of a Schiff base formed from o-aminobenzaldehyde and various diamines, are paramagnetic, with magnetic moments that decrease with temperature and, in one case, approach zero at 5 K.