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  • Electronic Resource  (2)
  • Barium caesium undecaphosphide-ammonia (1/11), BaCsP11 · 11 NH3  (1)
  • Ozonides  (1)
  • 1
    ISSN: 0009-2940
    Keywords: Ozonides ; Sodium ozonide ; Lithium ozonide ; Cation exchange ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Concentrated solutions of the ozonides LiO3 and NaO3 in anhydrous liquid ammonia were obtained for the first time by using an ion exchange reaction that starts from CsO3. No solid LiO3 or NaO3 can be precipitated. Upon removal of the solvent, the ozonide anion oxidises ammonia, resulting in the precipitation of LiOH and NaOH, respectively. This behaviour is in sharp contrast to that of solutions of KO3, RbO3 and CsO3. Proof of the existence of LiO3 and NaO3 in the solutions is provided by complexation of the cations with cryptands, which leads to solid (Li[2.1.1])O3 and (Na[2.2.2])O3. Crystal structure analysis shows that these are ionic solids containing the V-shaped O3- anion.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    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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