On the magnetic behaviour of some hydrogen bonded molecules in crystals

Abstract

The effect of the hydrogen bonding on the magnetic anisotropy of o-halogenobenzoic acids and some derivatives of phenol, namely 2-aminophenol, 2,3-dimethylphenol and 2-methyl-3-bromophenol, is studied. These molecules are of known crystal structures. The crystal susceptibilities (Xl, X2 and Xa) of each compound were measured. From these measurements and the molecular orientation, the principal molecular susceptibilities (K1, /(2 and K3) have been calculated. The observed magnetic data are interpreted in the light of the structures of these molecules and their hydrogen bonding systems.