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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: Synthesis and Reactivity of Tris(dialkylthiophosphinyl)phosphanesInvestigation of different methods for the synthesis of the title compounds shows that the reaction of LiP(SiMe3)2 with chlorides of thiophosphinic acid is the most effective method. Thereby tris(dialkylthiophosphinyl)phosphanes of the type P[P(S)R2]3 (R = Me, Et, n-Pr) are obtained in good yields. They were characterized by 1H, 31P NMR, and mass spectrometry. The stability of different iso-tetraphosphanes and the intramolecular charge distribution is compared on the basis of HMO calculations. These results are confirmed by investigations of the reactivity of the title compounds with OH-, HCl, and Br2.
    Notes: Die Untersuchung verschiedener Synthesemethoden zur Darstellung der Titelverbindungen ergab, daß am besten die Reaktion von LiP(SiMe3)2 mit Thiophosphinsäurechloriden geeignet ist. Es werden Tris(dialkylthiophosphinyl)phosphane des Typs P[P(S)R2]3 (R = Me, Et, n-Pr) in guten Ausbeuten erhalten und mittels 1H-, 31P-NMR- und Massenspektrometrie charakterisiert. Durch HMO-Berechnungen werden Stabilitäten verschiedener iso-Tetraphosphane verglichen und Voraussagen zur Ladungsverteilung in den Molekülen getroffen. Diese Ergebnisse werden durch Reaktivitätsuntersuchungen der Titelverbindungen gegenüber OH-, HCl und Br2 bestätigt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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