Dimer Formation in the Crystal Structure of (Dithiobenzoato)(trithioperoxybenzoato)platinum(II)

Article abstract of DOI:10.1039/DT9910002703

(Dithiobenzoato)(trithioperoxybenzoato)platinum(II) was obtained through reactions of and PhC(O)SH and of K2, CF3SO3Ag and PhC(O)SH.It crystallizes in the monoclinic space group C2/c with a = 16.629(2), b = 6.296(1), c = 29.182(2) Angstroem, β = 91.85(1) deg, and Z = 8.The complex has four- and five-membered chelate rings with a normal square-planar PtS4 arrangement.The stucture consists of dimers with a configuration in which the five-membered chelate ring of one molecule lies over the four-membered ring of the other.An extended-Hueckel molecular orbital calculation suggests intradimer charge-transfer interaction as the driving force for the formnation of the dimer.The diffuse reflectance spectrum of a powder sample of the complex gives new bands which are absent from the solution spectra.