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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1832-1836 
    ISSN: 0044-2313
    Keywords: Phosphorus selenide ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of the First Polymeric Phosphorus Selenide catena-(P4Se4)xCatena-(P4Se4)x was prepared in crystalline form from the elements using iodine as a catalyst, and characterized by means of X-ray diffraction and IR spectroscopy. Single-crystal investigations (space group P21/c, a = 1 119.2(3), b = 728.2(2), c = 1 142.5(3) pm, β = 115.91(2)°, V = 837.5(7) · 106 pm3) revealed parallel chains of P4Se3 hetero-norbornane units linked via Se atoms. Thus, being the first phosphorus selenide which does not contain discrete molecules, catena-(P4Se4)x can be regarded as a polymeric form of α-P4Se4 or as a crystalline modification of vitrous phosphorus selenide.
    Notes: Catena-(P4Se4)x wurde aus den Elementen unter dem katalytischen Einfluß von Iod in kristalliner Form dargestellt. Die Charakterisierung erfolgte röntgenographisch sowie IR-spektroskopisch. Nach einer Strukturbestimmung an einem Einkristall (Raumgruppe P21/c, a = 1 119,2(3), b = 728,2(2), c = 1 142,5(3) pm, β = 115,91(2)°, V = 837,5(7) · 106 pm3) liegen darin parallele Ketten Se-verbrückter P4Se3-hetero-Norbornan-Einheiten vor. Als erstes nicht aus diskreten Molekülen aufgebautes Phosphorselenid kann catena-(P4Se4)x sowohl als polymerisierte Form des α-P4Se4 wie auch als kristalline Modifikation eines Phosphoreselenidglases aufgefaßt werden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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