Platinum(II) acetate is a purple-colored
coordination complex
A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of chemical bond, bound molecules or ions, that are in turn known as ' ...
. The complex adopts an unusual structure consisting of a square array of Pt atoms.
Preparation
Several syntheses of platinum(II) acetate have been reported.
Geoffrey Wilkinson ''et al.'' reported a highly temperamental synthesis from sodium hexahydroxyplatinate, nitric acid, and acetic acid. This intermediate solution was reducted with formic acid.
Alternatively, the complex can be prepared by the reaction of
silver acetate with
platinum(II) chloride.
Structure
According to
X-ray crystallography
X-ray crystallography is the experimental science of determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to Diffraction, diffract in specific directions. By measuring th ...
, the complex is tetrameric, in contrast to the trimeric palladium analog.
The four platinum atoms form a square cluster, with eight
bridging acetate ligands surrounding them. The compound has slight distortions from idealized ''D''
2d symmetry. The crystal is tetragonal.
References
{{Acetates
Platinum complexes
Acetate,2
Acetates