Magnetic properties of some N-(2-hydroxyphenyl)-2-hydroxy-1-naphthylmethyleneiminato-complexes of the oxovanadium(IV) ion

Abstract

The magnetic properties of a number of oxovanadium(IV) complexes of general formula [VO(L)],nX (L = a Schiff's base ligand derived from 2-hydroxy-1-naphthaldehyde and one of a number of substituted 2-aminophenols, X = solvent molecule, and n= 0 or 1) have been investigated over the temperature range 77–300 K. The solvated complexes (n= 1, X = H₂O or EtOH) obey the Curie–Weiss law, but the other complexes (n= 0) exhibit antiferromagnetic behaviour. The experimental data for the antiferromagnetic complexes indicate polymetallic structures and have been interpreted by use of the spin–spin exchange theory assuming both dimetallic and infinite linear-chain models.