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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1925-1931 
    ISSN: 0044-2313
    Keywords: Phosphorus compounds ; 3-Iod-5-alkyl-2,6,7-trichalcogena-1,3,4,5-tetraphospha-bicyclo[2.2.1.] heptan ; 3-Iod-6-alkyl-2,5,7-trichalcogena-1,3,4,6-tetra-phospha-bicyclo-[2.2.1.] heptan ; 3-Alkyl (Iod)-3,5,7-trithia-1,2,4,6-tetraphosphatricyclo[2.2.1.02,6] heptan ; 31P-NMR ; 77Se-NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Tetraphosphorus Trichalcogenides with Alkyl IodidesReactions of alkyl iodides RI (R = CHI2, CH2I or tert-Butyl) with P4E3 (E = S or Se) under the influence of light resulted in cleavage of the basal P3 ring. β-P4E3(I)R was formed initially, then it rearranged to the more stable α-P4E3(I)R structure. 31P NMR data of these products were measured and discussed, along with 77Se data for α- and β-P477SeSe2(I)CHI2. On reaction of P4S3 with tert-butyl iodide in CS2 or with sec-butyl iodide or iso-propyl iodide in dioxane, the new type of compounds P5S2R was observed. In this a sulfur bridge of P4S3 is replaced by a P—R group. 31P-NMR data for these compounds are reported.
    Notes: Bei der Reaktion von Alkyliodiden RI (R = CHI2, CH2I und tert-Butyl) mit P4E3 (E = S; Se) in CS2 wird unter Lichteinwirkung eine Bindung des basalen P3-Ring gebrochen. Es bildet sich β-P4E3(I)R, das sich nach einiger Zeit in das stabilere α-P4E3(I)R umwandelt. Die 31P-NMR Daten dieser Verbindungen und zusätzlich die 77Se-Daten für α- und β-P477SeSe2(I)CHI2 wurden gemessen und diskutiert. Bei der Reaktion von P4S3 mit tert-Butyliodid in CS2 bzw. mit sec-Butyliodid oder iso-Propyliodid in Dioxan wird der neue Verbindungstyp P5S2R beobachtet, in dem eine Schwefelbrücke des P4S3 durch eine P—R-Gruppe ersetzt ist, auch seine 31P-NMR-Daten werden wiedergegeben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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