Synthesis and X-ray crystal structure of the bridging diselenide complex [(PtMe3Br)2MeSeSeMe], and unusual prochirality at a selenium centre in the complex [PtMe3Br(Me2Se)2]

Abstract

The tetrameric bromotrimethylplatinum [(Me₃PtBr)₄] reacts with dimethyl diselenide and dimethyl selenide to form respectively the dinuclear complex [(Me₃PtBr)₂MeSeSeMe] and the mononuclear complex [Me₃PtBr(Me₂Se)₂]; the crystal structure of the dimer shows a novel diselenide bridge, and the atomic inversion about selenium has been studied in both complexes exploiting the presence of anisochronous methyl groups.