Unusual structure and novel fluxional rearrangements in the s-trithian complex [(Me3PtCl)2(SCH2SCH2SCH2)]; X-ray crystal structure determination

Abstract

The tetrameric chlorotrimethylplatinum [(Me₃PtCl)₄] reacts with s-trithian to form the dinuclear complex [(Me₃PtCl)₂([graphic omitted]H₂)], the crystal structure of which reveals that the 6-membered cyclic ligand is in the boat conformation rather than the more usual chair conformation; on warming a solution of the complex, the dinuclear platinum moiety commutes between pairs of sulphur atoms in an intramolecular manner, which necessitates a change in ring conformation.