Imidazolato-bridged complexes of copper(II)

Abstract

Compounds of the empirical formula Cu(HIm)₂(Im)X [where X = NO₃-, ClO₄-, Cl-, Br-, and I-; HIm = imidazole and Im- = anion of imidazole] have been prepared and investigated. Evidence for the imidazolato anion acting as a bridging ligand in the solid state is based on magnetic and spectroscopic data. The electronic spectra of aqueous solutions of tetrakisimidazolecopper(11) compounds suggest the presence of the binuclear hydroxy-bridged cation (1) : (See diagram in article) which is also furnished by the imidazolato-bridged species in aqueous solution.