Some Dioxygen Complexes of Zirconium (IV), Tin (IV) and Lead (II) Ions Containing Some Monodentate, Bidentate and Tridentate Organic Ligands

M. Tofazzal, H. Tarafder and Goh Lee See

Department of Chemistry, University Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia.

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ABSTRACT:

Some dioxygen complexes of zirconium (IV). tin (IV) and lead(ll) containing various monodentate, bidentate and tridentate auxiliary ligands have been systnesized. The complexes characterized were [Zr(O)(O2)2 C5 H5 N. H2O], [Zr(O) (O2)22 OPPh3] [Sn(O2)(c9 H6 NO)2], [Sn(O2)2. (CH2)2 (NH2)2], [Pb(O2) (C5 H5N)2 NO3], [Pb(O2) (C8 H6 NOH)], [Pb(O2) (det) NO3] and [Pb(O2) (C5 H4 NCOOH)NO3.H2O] . The peroxo complex of Zr(IV) containing monodentate ligands were found to oxidize trans-stilbene to trans-stilbene oxide under stoichiometric condfcons.The organoperano complexes of tin and lead were inert towards oxidation reactions.

KEYWORDS:

Monodentate; Systnesized; stoichiometric rganoperanocomplexes