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  • 1
    Electronic Resource
    Electronic Resource
    Experimental electron density of the ozonide ion (O3-) in potassium ozonide, KO3 (1993)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 115 (1993), S. 11254-11258 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00077a026
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis and Crystal Structure of Tricaesium Heptaphosphide-Ammonia(1/3) Cs3P7·3 NH3 (1996)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 79 (1996), S. 2083-2087 
    Details
    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
    URL: http://dx.doi.org/10.1002/hlca.19960790805
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  • 3
    Electronic Resource
    Electronic Resource
    Chemische Gleichgewichte. Von M. Binnewies. VCH Verlagsgesellschaft, Weinheim, 1996. 237 S., Broschur 48.00 DM. -  ISBN 3-527-29371-X (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 109 (1997), S. 675-676 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19971090637
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation and crystal structure of barium caesium undecaphosphide-ammonia (1/11) BaCsP11 · 11 NH3Dedicated to Professor Hans-Georg von Schnering on the Occasion of his 65th Birthday (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1833-1838 
    Details
    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
    URL: http://dx.doi.org/10.1002/zaac.19966221106
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  • 5
    Electronic Resource
    Electronic Resource
    Neue Untersuchungen zu Präparation und Struktur von Rb4O6Professor Hans-Georg von Schnering zum 60. Geburtstage gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 598 (1991), S. 163-173 
    Details
    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
    URL: http://dx.doi.org/10.1002/zaac.19915980116
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  • 6
    Electronic Resource
    Electronic Resource
    Ionic Ozonides of Lithium and Sodium: Circumventive Synthesis by Cation Exchange in Liquid Ammonia and Complexation by CryptandsDedicated to Professor H. G. von Schnering on the occasion of his 65th birthday. (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 773-777 
    Details
    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
    URL: http://dx.doi.org/10.1002/cber.19961290707
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  • 7
    Electronic Resource
    Electronic Resource
    Alkali Metal Polyphosphides in Low Dimensions: Synthesis and Structure of [(CH3)4N]2RbP7(NH3) and [(C2H5)4N]Cs2P11 (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 155-159 
    Details
    ISSN: 0009-2940
    Keywords: Polyphosphides ; Heptaphosphanortricyclane ; Undecaphosphatrishomocubane ; Ufosane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Partial exchange of the alkali metal ions for tetraalkylammonium cations of Rb3P7 and Cs3P11 in liquid ammonia results in the formation of [(CH3)4N]2RbP7(NH3) (1) and [(C2H5)4N]Cs2P11 (2). The crystal structures reveal the existence of one-dimensional 1∞[RbP7]2- chains in the former and two-dimensional 2∞[Cs2P11]- layers in the latter compound. The nortricyclane cage in 1 is distorted by one-sided coordination to the Rb ions in a manner that can be related to the valence tautomerism of the free P73- anion.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290208
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesewege zu neuen ionischen Ozoniden (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 1383-1388 
    Details
    ISSN: 0009-2940
    Keywords: Phase-transfer catalysis ; Ozonides, ionic ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthetic Routes to New Ionic OzonidesNew synthetic routes to tetraorganylammonium ozonides involving exchange reactions with alkali metal ozonides were investigated. The previously reported reaction between tetraalkylammonium hyperoxides R4N+O2- (R = Me, Et) and alkali metal ozonides in liquid ammonia is severely hampered by the difficult synthesis of these hyperoxides; they are unknown for other quaternary ammonium cations. A similar reaction between the easily accessible chlorides of trialkylbenzylammonium ions and KO3 yields mixed ozonides/chlorides due to some solubility of KCl in liquid ammonia. The new compounds BzlMe3N+ (O3-)0.6Cl-0.4 (3), BzlEt3N+ (O3-)0.8Cl0.2- (4) and Bzl(nBu)3N+(O3-)0.5Cl0.5- (5) were prepared by this route. - The by far superior route to new ozonides utilizes macroreticular cation exchange resins in liquid ammonia. Batch equilibration between an excess of the appropriate ionic form of the resin and CsO3 produced Me3PhN+O3- (6), BzlMe3N+O3- (7), Bzl(nBu)3N+O3- (8), and (nPr)4N+ O3- (9) in almost quantitative yield. Compounds 4, 6, and 7 were studied by single-crystal X-ray analysis; the shortening of the ozonide bond length and the widening of the bond angle in comparison to the alkali metal ozonides as well as the possibility of C-H…O hydrogen bonding are discussed. Thermal stabilities were determined by DTA/TG methods, rapid decomposition starts at 59-79°C for 3, 6, and 7 and at 28-56°C for the remaining new ozonides which contain detachable β-H atoms.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250613
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  • 9
    Electronic Resource
    Electronic Resource
    Gezielte Synthese von stabilen Hydrogenpolyphosphiden: Präparation und strukturelle Charakterisierung von HP112- in (NBnMe3)2 HP11 und (PBnPh3)2 HP11 sowie sein Vergleich mit dem ersten „nackten“ P113--Ion in (NEtMe3)3P11Wir danken Herrn Dr. W. Hoffbauer für die Aufnahme der Festkörper-NMR-Spektren. (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 108 (1996), S. 1188-1190 
    Details
    ISSN: 0044-8249
    Keywords: Polyphosphide ; Phosphorverbindungen ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19961081017
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  • 10
    Electronic Resource
    Electronic Resource
    cyclo-Sb55-: ein hochgeladenes Zintl-Anion, stabilisiert als Ionenkomplex im Ammoniakat [Li(NH3)4]3[Li2(NH3)2Sb5]·2NH3Professor Hans Georg von Schnering gewidmet (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 109 (1997), S. 1575-1577 
    Details
    ISSN: 0044-8249
    Keywords: Antimon ; Strukturaufklärung ; Zintl-Anionen ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19971091337
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