THE SYNTHESIS AND REACTIVITY OF SOME MIXED-LIGAND PEROXO COMPLEXES OF ZIRCONIUM(IV) AND THORIUM(IV)

Some new mixed-ligand peroxo complexes of zirconium(IV) and thorium(IV) with organic dibasic acids and heterocyclic amines have been prepared. The complexes have the composition [M(O2)(acid).L], where M = Zr(IV) or Th(IV); acid = dianion of diphenic acid (da) or homophthalic acid (hp); L = 2,2'-bipyridine (bpy) or 1,10-phenanthroline (phen). The Zr(IV) complexes did not oxidize allyl alcohol, but oxidized triphenylphosphine and triphenylarsine to their oxides. The Th(IV) complexes were found to oxidize allyl alcohol and triphenylphosphine as well as triphenylarisine to their respective oxides.