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  • Inorganic Chemistry  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 564 (1988), S. 96-100 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Tris(pyridinium)bromine-bis(bromotrichloraluminate(III))The compound [(PyH)3Br] [AlCl3Br]2 is formed by melting stoichiometric amounts of PyHBr and AlCl3 in the ratio of 3:2. It crystallizes in the space group P21 with lattice constants a= 745.6(2), b = 1415.6(2), c = 1363.1(1) pm, β = 93.00(1)°, Z = 2. The atomic parameters were refined from 2827 measured intensities to a weighted value of R = 5.8%. The cation consists of three pyridinium ions with N—H—Br-hydrogenbonds to a central positioned bromide ion. The N—Br-distances are 334(2), 330(2) and 323(3) pm.
    Notes: Die Verbindung [(PyH)3Br] [AlCl3Br]2 kann durch Zusammenschmelzen stöchiometrischer Mengen PyHBr und AlCl3 im molaren Verhältnis 3:2 erhalten werden. Sie kristallisiert in der Raumgruppe P21 (monoklin) mit den Gitterkonstanten a= 745,6(2), b = 1415,6(2), c = 1363,1(1) pm, β = 93,00(1)°, Z = 2. Zur Strukturbestimmung wurden 2827 Reflexintensitäten gemessen; es wurde ein gewichteter R-Wert von 5,8% erreicht. Das Kation dieser Verbindung besteht aus einem von drei Pyridinium-Ionen über N—H—Br-Wasserstoffbrücken koordinierte zentralen Bromid-Ion. Die N—Br-Abstände betragen 334(2), 330(2) und 323(3) pm.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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