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 (x ₁, x ₂ and x ₃) of each compound were measured. From these measurements and the molecular orientation, the principal molecular susceptibilities (K ₁, K ₂ and K ₃) have been calculated. The observed magnetic data are interpreted in the light of the structures of these molecules and their hydrogen bonding systems.