SYNTHESIS AND CHARACTERIZATION OF COPPER(II) AND MIXED-METAL COPPER(II) ZINC(II) PEROXO COMPOUNDS CONTAINING IMIDAZOLE

The reaction of equimolar mixture of copper and zinc powders with aque ous solution of imidazole (HIm) (1:1:2) and only in the presence of ex cess hydrogen peroxide results in the formation of a novel homogeneous mixed metal peroxo complex [Cu, Zn (O2(2-))2(0.5 HIm)(H2O)3]. The abo ve reaction, when carried out in the absence of zinc, gives a new comp ound [Cu(O2(2-))(0.5 HIm)(H2O)2]. These compounds have been characteri zed by elemental analysis, electronic, IR and ESR spectral data and th ermogravimetric analysis. It is interesting to note the mutual influen ce of Cu and Zn on the formation of a novel hetero nuclear peroxy imid azole complex.