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  • Barium caesium undecaphosphide-ammonia (1/11), BaCsP11 · 11 NH3  (1)
  • 1
    ISSN: 0044-2313
    Keywords: Barium caesium undecaphosphide-ammonia (1/11), BaCsP11 · 11 NH3 ; barium nonaammine complex ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung und Kristallstruktur von Barium-Caesium-Undecaphosphid-Ammoniak (1/11) BaCsP11 · 11 NH3Die neue Verbindung BaCsP11 · 11 NH3 wurde in flüssigem Ammoniak ausgehend von Cs3P11 und einem mit Ba2+ -Ionen beladenen Ionenaustauschmaterial hergestellt. BaCsP11 · 11 NH3 bildet gelbe Kristalle, die sich ab 246 K unter Verlust des Kristallammoniaks zersetzen. Die Kristallstruktur wurde mit Hilfe von Röntgen-Einkristalldiffraktometerdaten bestimmt: P21/a, a = 1599.9(2) pm, b = 1793.9(3) pm, c = 1998.1(7) pm, β = 93.02(4)°, Z = 8, wR2 = 0.118 (R1 = 0.047) für 8969 Strukturfaktoren und 631 variable Parameter. Die Kationen Cs+ sind durch Undecaphosphatrishomocuban-Anionen P113- so koordiniert, daß eindimensional-unendliche Stränge ∞1[CsP11]2- vorliegen, die voneinander durch Ba(NH3)n2+ -Kationen (n = 8 und 9) getrennt sind. Es wird nur ein direkter Ba—P-Kontakt beobachtet.
    Notes: The new compound BaCsP11 · 11 NH3 was prepared in liquid ammonia, using Cs3P11 and a cation exchange resin loaded with Ba2+ cations as starting materials. BaCsP11 · 11 NH3 forms yellow crystals which decompose at 246 K under loss of the ammonia of crystallisation. The crystal structure was determined from single-crystal X-ray diffractometer data: P21/a, a = 1599.9(2) pm, b = 1793.9(3) pm, c = 1998.1(7) pm, β = 93.02(4)°, Z = 8, wR2 = 0.118 (R1 = 0.047) for 8969 structure factors and 631 variable parameters. The Cs+ cations are co-ordinated by undecaphosphatrishomocubane anions P113- in such a way that one-dimensionally infinite chains ∞1[CsP11]2- result which are separated by Ba(NH3)n2+ (n = 8 and 9). Only one Ba—P contact is observed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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