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  • Electronic Resource  (3)
  • Organic Chemistry  (1)
  • Rb4O6  (1)
  • Sodium ozonide  (1)
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 79 (1996), S. 2083-2087 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Recrystallization of Cs3P7 from liquid NH3 yields the triammoniate Cs3P7·3 NH3, which loses the weakly bound NH3 of crystallization below 253 K. A low-temperature crystal-structure analysis shows that Cs3P7· NH3 consists of a framework of heptaphosphanortricyclane anions P73- and Cs+ cations with NH3 molecules completing the coordination of the cations. The framework is built from Cs3P7 layers connected by only few Cs…P interactions, the interlayer gap being filled by a two-dimensional network of NH3. The Cs7P7 part of the structure completes a family of alkali-metal-polyphosphide substructures which range from ∞1[RbP7]2- or ∞1[CsP11]2- chains over ∞2[Cs2Pn]- layers (n = 7, 11) to now ∞3[Cs3P7] frameworks.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 598 (1991), S. 163-173 
    ISSN: 0044-2313
    Keywords: Rubidiumsesquioxide ; Rb4O6 ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reinvestigation of Rubidiumsesquioxide, Rb4O6Rb4O6 was prepared as a pure substance by solid state reaction between Rb2O2 and RbO2; it proves to be thermodynamically stable. The suggested structure was confirmed and refined by X-ray powder and single crystal methods (I43d; a = 932,42(4) pm; Rb4(O2-)2(O22-); Z = 4). Rb4O6 melts at 461°C followed by exothermic decomposition. The fact that O2- and O22- cannot be distinguished is discussed.
    Notes: Rb4O6 wurde durch Festkörperreaktion zwischen Rb2O2 und RbO2 erstmals röntgenrein dargestellt; es ist thermodynamisch stabil. Der bestehende Strukturvorschlag konnte durch röntgenographische Pulver- und Einkristalluntersuchungen bestätigt und verfeinert werden (I43d; a = 932,42(4) pm, Rb4(O2-)2(O22-), Z = 4). Rb4O6 schmilzt bei 461°C mit anschließender exothermer Zersetzung. Das Problem der Ununterscheidbarkeit von O2- und O22- wird diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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