Studies on Complexes of Metal(II) Carboxylates with Donor Molecules. IV. Complexes of Nickel(II) Chloroacetates with Pyridine N-Oxides and Triphenylphosphine Oxide

Abstract

Abstract Twelve green crystalline complexes with the general formula [Ni(O2CR)2·L]2 were prepared by the reaction of stoichiometric amounts of pyridine N-oxide, 2-methylpyridine N-oxide, 3-methylpyridine N-oxide, and triphenylphosphine oxide with nickel(II) mono-, di-, and trichloroacetates in methanol. The complexes were characterized by elemental analyses, conductance, magnetic moments, IR and electronic spectra as neutral, binuclear, carboxylato bridged species identical to those of copper(II) acetate monohydrate. The complexes involve varying degrees of magnetic interaction which diminishes with increasing chlorine substitution in the chloroacetate moiety.