PREPARATION AND REACTIVITY OF SOME PEROXO COMPLEXES OF ZIRCONIUM(IV) AND URANIUM(VI)

New peroxo complexes of zirconium(IV) and uranium(IV) with dibasic aci ds and nitrogen containing heterocyclic bases have been prepared. The general compositions of the complexes are [M(O-2)(DB)(L)(2)] and [M'O( O-2)(DB)(L)(2)], where M, M' are Zr(IV) or U(VI), DB = dianion of homo phthalic acid or malonic acid and L = quinoline (Q) or isoquinoline (I Q). These complexes were characterized on the basis of elemental analy ses, conductivity measurements, magnetic measurements, TLC, GLC, infra red spectral studies and by reactions with allyl alcohol, triphenylpho sphine and triphenylarsine. The zirconium complexes were found to be o ctahedral, whereas the uranium complexes were seven-coordinated.