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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Phosphorus. 59. Synthesis and Structure of (C6H5PS)31,2,4-Triphenyl-1-thio-cyclo-3,5-dithia-1,2,4-triphosphane (C6H5PS)3 (1) is obtained in very good yield by the reaction of dipotassium triphenyltriphosphide (4) with dichloro trisulfane, as well as by the reaction of phenylphosphine with sulphur dichloride. Besides, 1 is formed, together with the cyclothiaphosphane (C6H5P)4 (3), by the reaction of a 1,2-diphenyl-1,2-dihalogen-diphosphane with hydrogen sulphide or disulfane and by the reaction of 4 and disulphur dichloride. - All of the spectroscopic data, especially the 31P nmr spectra, indicate unambiguously the heterocyclophosphane structure V with a five-membered P3S2-ring with isolated sulphur atoms, and with one of the directly connected phosphorus atoms bearing another sulphur atom in exo-position, in addition to the phenyl group.
    Notes: 1,2,4-Triphenyl-1-thio-cyclo-3,5-dithia-1,2,4-triphosphan (C6H5PS)3 (1) wird durch Reaktion von Dikalium-triphenyl-triphosphid (4) mit Dichlortrisulfan sowie durch Umsetzung von Phenylphosphin mit Schwefeldichlorid in sehr guter Ausbeute erhalten. Außerdem bildet sich 1 - zusammen mit dem Cyclo-thia-phosphan (C6H5P)4 (3) - bei der Umsetzung von 1,2-Diphenyl-1,2-dihalogen-diphosphanen mit Schwefelwasserstoff oder Disulfan sowie aus 4 und Dischwefeldichlorid. - Die Gesamtheit der spektroskopischen Befunde, insbesondere das 31P-Kernresonanzspektrum, ergibt für 1 eindeutig die Heterocyclophosphan-Struktur V mit fünfgliedrigem P3S2-Ring, in dem die S-Atome isoliert stehen und eines der direkt miteinander verbundenen P-Atome außer der Phenylgruppe noch ein exoständiges S-Atom trägt.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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