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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1487-1496 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Inclusion Compounds of Organic Onium Salts, IV1). Organyl Ammonium Hosts as Versatile Clathrate FormersThe organyl-oligo-ammonium compounds 1 - 25 and their clathrates with a variety of low molecular weight neutral compounds, especially solvent molecules, are prepared. The inclusion capacity of the new clathrands can be explained by interstices in the host lattice. The conformational flexibility of the voluminous onium branches is responsible for the great number of clathrates; their stability depends on the ion lattice. The X-ray analysis of the ethanol clathrate of the onium host 8 shows that one ethanol molecule is surrounded by the host molecules in a cage-type manner. The great variety of the inclusions obtained up to now demonstrates that the oligo onium host compounds have to be considered as the most universal clathrands of organic chemistry. Hints are given for the syntheses of new onium clathrates.
    Notes: Die Organyl-oligo-ammonium-Verbindungen 1 - 25 und ihre Clathrate mit zahlreichen nieder-molekularen Neutralsubstanzen, insbesondere Lösungsmittelmolekülen, .werden dargestellt. Das Einschlußvermögen der neuen Clathranden wird auf Lücken im Wirtgitter zurückgeführt; die Vielfalt der Clathrate wird durch die konformative Beweglichkeit der voluminösen Onium-Seitenarme ermöglicht. Die Stabilität der Einschlüsse basiert auf dem ionischen Aufbau des Wirtgitters. Die Röntgenstrukturanalyse des Ethanol-Clathrats des Onium-Wirts 8 ergibt, daß in Ethanolmolekül von den Wirtmolekülen käfigartig umgeben ist. Die Vielzahl der bisher erhaltenen Einschlüsse zeigt, daß die (Oligo-)Onium-Wirtverbindungen zu den universellsten Clathranden der organischen Chemie gezählt werden müssen. Die Arbeit gibt Hinweise zur Synthese neuer Onium-Clathrate.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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