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  • 1
    ISSN: 0044-2313
    Keywords: Osmium Polysulfido Complex ; Synthesis ; IR Spectrum ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Crystal Structure of Tetraphenylphosphonium Aqua-bis(tetrasulfido)thionitrosyl Osmate, PPh4[Os(NS)(S4)2(H2O)]PPh4[Os(NS)(S4)2(H2O)] has been prepared as redbrown crystals by reacting PPh4[OsNCl4] with a solution of excess disodium tetrasulfide in dimethylformamide/H2O and characterized by IR spectroscopy and by a crystal structure determination. Space group P21/n, Z = 4, structure solution with 4162 independent reflections, R = 0.059 for reflections with I 〉 2σ(I). Lattice dimensions at -40°C: a = 1138.9(5), b = 1301.4(4), c = 2092.7(7) pm, β = 104.74(3)º. Os—N, Os—O, and Os—S distances are 175.2(12), 219.8(12), and 237.5(4)-239.1(4) pm, respectively. The Os=N=S moiety is approximately linear, with an OsNS angle of 171.2(7)º.
    Notes: PPh4[Os(NS)(S4)2(H2O)] wurde als rotbraune Kristalle durch Reaktion von PPh4[OsNCl4] mit einer Lösung von überschüssigem Dinatriumtetrasulfid in Dimethylformamid/H2O hergestellt und durch das IR-Spektrum und eine Kristallstrukturanalyse charakterisiert. Raumgruppe P21/n, Z = 4, Strukturlösung mit 4162 unabhängigen Reflexen, R = 0,059 für Reflexe mit I 〉 2σ(I). Gitterabmessungen bei -40°C: a = 1138,9(5); b = 1301,4(4); c = 2092,7(7) pm, β = 104.74(3)º. Die Abstände Os—N, Os—O und Os—S betragen 175,2(12), 219,8(12) und 237,5(4) - 239,1(4) pm. Die Os=N=S-Gruppe ist mit einem Bindungswinkel von 171,2(7)º annähernd linear.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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