Volatile Dimethylgold(III) β-Iminovinylthionates: Synthesis, Structure, and Properties

Volatile dimethylgold(III) beta-iminovinylthionates, (CH(3))(2)Au(CH(3)CSCHC(NH)CH(3)) (I) and (CH(3))(2)Au(CF(3)CSCHC(NH)CH(3)) (II), were studied. For complexes I and II, the synthesis is described and data from elemental analysis, IR and UV/Vis spectra, DTA, and X-ray diffraction are given. The structures of I and II are composed of monomeric complexes combined into polymeric stack-type associates. The distorted square environment of gold is formed by sulfur and nitrogen atoms of the chelating ligand and two carbon atoms of the methyl groups. For complex I, the average Au-S bond length is 2.260 angstrom, the Au-N bond length is 2.137 angstrom, and the chelate angle SAuN is 94.1 degrees; for II, these values are 2.355 angstrom, 2.088 angstrom, and 93.7 degrees, respectively.