Synthesis and characterization of cobalt (II), nickel (II) and copper (II) bis-chelates and mixed-ligand complexes of <img src='/image/spc_char/alpha.gif' border=0>-(2-hydroxyphenyl)-N-( 2-nitrocyclohexyl)nitrone</span>

Abstract

Complexes of the type MA₂.2H₂O and CuAL.2H₂O [where AH = <img src='/image/spc_char/alpha.gif' border=0> -(2-hydroxyphenyl)-N-(2-nitrocyclohexyl)nitrone, M= cobalt (II)/ nickel (II)/ copper (II) and LH = salicylaldehyde/salicylaldoximel /8- hydroxyquinoline/2-hydroxypyridine] have been synthesised and characterised on the basis of elemental analysis, spectral, magnetic and thermal studies. All these dihydrates possess normal magnetic moments and their ligand field spectra and thermal studies suggest an octahedral geometry for these complexes.