The Open Inorganic Chemistry Journal

2007, 1 : 1-25
Published online 2007 July 18. DOI: 10.2174/1874098700701010001
Publisher ID: TOICJ-1-1

Stereochemistry of Platinum Organometallics

Milan Melník , Ján Garaj and Clive Eduard Holloway
Department of Natural Sciences, Alexander Dubcek University in Trencin, Studentska 1, 812 50 Trencin, Slovak Rebublic.

ABSTRACT

The organometallic chemistry of platinum covers a huge field, as shown by a recent survey covering the crystallographic and structural data of almost one thousand organometallic derivatives. About nine percent of those derivatives exist as isomers and are summarized in this review and include distortion (90 %), cis - trans (6%) and ligand isomerism (4%). These are discussed in terms of the coordination about the platinum atom, and correlations are drawn between donor atom, bond length and interbond angles, with attention to any trans - effect.

Distortion isomers, differing only by degree of distortion in Pt-L bond lengths and L- Pt -L bond angles, are the most numerous. They are also spread over a wider range of oxidation states of platinum, (zero, +1, +2, +4, mixed valence +1 plus +2 and +2 plus +4), compared to cis-trans and ligand isomerism in which only +2 is found.

Keywords:

Pt, Stereochemistry, X-ray.