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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 590 (1990), S. 37-47 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Rhenium Compounds with the -OTeF5 LigandReCl5 or ReOCl4 react with ClOTeF5 to give blue, paramagnetic O=Re(OTeF5)4. In the crystal O=Re(OTeF5)4 forms a square pyramid with the double bonded oxygen in the apical position. The sixth coordination site of the pseudo octahedron around rhenium is occupied in a longer distance by a tellurium bonded fluorine atom that belongs to F2Te(OTeF5)2. The latter has an unsymmetric, up till now unknown structure. Yellow O=Re(OTeF5)5 is formed from O=Re(OTeF5)4 by oxidation with Xe(OTeF5)2. The crystal structure of the latter shows the expected octahedral rhenium coordination with one double bonded oxygen.Similar reactions proved to be unsuccessful with osmium as central atom.
    Notes: ReCl5 oder ReOCl4 reagieren mit ClOTeF5 zu blauem, paramagnetischem O=Re(OTeF5)4. Im Kristall bildet O=Re(OTeF5)4 eine quadratische Pyramide mit dem doppelt gebundenen Sauerstoff an der Spitze. Die sechste Koordinationsstelle des Rheniumkoordinationsoktaeders wird in größerer Entfernung von einem tellurgebundenen Fluoratom eingenommen, welches von F2Te(OTeF5)2 stammt. Letzteres liegt in einer unsymmetrischen, bislang unbekannten Struktur vor. Gelbes O=Re(OTeF5)5 entsteht aus O=Re(OTeF5)4 durch Oxidation mittels Xe(OTeF5)2. Die Kristallstrukturanalyse liefert oktaedrische Rheniumumgebung mit einem doppelt gebundenen Sauerstoffatom.Analoge Reaktionen sind bislang nicht auf Osmium übertragbar.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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