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Synthesis, spectroscopy and structures of o-diphenylphosphinobenzoic acid complexes of diorganotin (IV), palladium (II) and platinum (II)

Phadnis, Prasad P and Dey, Sandip and Jain, Vimal K and Nethaji, M and Butcher, Ray J (2006) Synthesis, spectroscopy and structures of o-diphenylphosphinobenzoic acid complexes of diorganotin (IV), palladium (II) and platinum (II). In: Polyhedron, 25 (1). pp. 87-94.

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Abstract

The reactions of diorganotin oxides with o-diphenylphosphinobenzoic acid $([PPh_{2}(o-C_{6}H_{4}COOH)], LH)$ in 1:1 stoichiometry afforded tetraorganodistannoxanes $[{R_{2}Sn(OOC-C_{6}H_{4}PPh_{2})}_{2}O]_{2} (R = Me, Et, Pr^{n}, Bu^{n})$. o-(Diphenylphosphino)benzoic acid complexes of palladium (II) and platinum (II) with the formulae $[MCl_{2}(LH)_{2}], [MCl_{2}(PR_{3})(LH)] (PR_{3} = PEt_{3},\hspace{5mm} {PBu_3},\hspace{5mm}{PMePh_2};{M = Pd,Pt})$ have been prepared. Reactions of $[\lbrace Bu_{2}Sn(OOC-C_{6}H_{4}PPh_{2})\rbrace _{2}O]_{2}$ with $PtCl_{2}(PhCN)_{2}$ in 1:1 and 1:2 ratio gave a complex mixture of products from which $[Pt(O_{2}CC_{6}H_{4}PPh_{2})_{2}]$ was isolated. All the complexes have been characterized by elemental analyses, IR, NMR $(^{1}H, ^{13}C{^{1}H}, ^{31}P{^{1}H}$ and $^{119}Sn{^{1}H})$ and UV-Vis spectroscopy. The stereochemistry of these complexes has been deduced from spectroscopic data. The structures of $[\lbrace Bu_{2}Sn(OOC-C_{6}H_{4}PPh_{2}) \rbrace _{2}O]_{2}$ and $[Pt(O_{2}CC_{6}H_{4}PPh_{2})_{2}]$ have been established by X-ray crystallography.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Elsevier.
Keywords: o-(Diphenylphosphino)benzoic acid; Tetraorganodistannoxanes; Palladium (II); Platinum (II); NMR; Crystal structures
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 28 Feb 2006
Last Modified: 19 Sep 2010 04:24
URI: http://eprints.iisc.ernet.in/id/eprint/5716

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