Synthesis and characterization of platinum group metal complexes of diphenylphosphinoacetic acid

Taqui Khan, M. M. ; Nazeeruddin, Md. K. ; Bajaj, H. C. (1988) Synthesis and characterization of platinum group metal complexes of diphenylphosphinoacetic acid Inorganica Chimica Acta, 143 (2). pp. 177-184. ISSN 0020-1693

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0020-1693(00)83686-5

Abstract

Complexes of diphenylphosphinoacetic acid (POH) with platinum group metal ions are reported. Reaction of an excess of POH with the rhodium(I) complex RhCl(PPh3)3 resulted in the formation of the octahedral Rh(III) complex fac-Rh(PO)3 by the oxidative addition of protons to the Rh(I) species. Reaction of RhCl(PPh3)3 with POH in a 1:2 molar ratio however, gave the square planar Rh(I) complex Rh(PO)(POH)(PPh3). Interaction of POH with the Rh(I) and Ir(I) square planar complex MCI(CO)(PPh3)2 in a 2:1 molar ratio gave complexes of the type trans-M(PO)(POH)(CO). The reaction of PdCl2(C6H5CN)2 and K2PtCl4 with POH in a 1:2 molar ratio gave complexes of the composition cis-M(PO)(POH)Cl. Interaction of RhCl3 and IrCl3 with POH in a 1:3 molar ratio resulted in the formation of complexes of the type M(PO)2(POH)Cl (M = Rh(III) and Ir(III)). The complexes were characterized by 1H, 13C, 31p, NMR and IR spectroscopy.

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