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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 575 (1989), S. 10-16 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, IR Spectrum, and Crystal Structure of N,N'-Bis(trimethylsilyl)benzamidinium Tetrachloroferrate(III)The title compound [C6H5—C(NHSiMe3)2][FeCl4] is obtained by the reaction of FeCl3 with N,N,N'-tris(trimethylsilyl)benzamidine in the presence of tetrahydrofurane, forming yellow, moisture sensitive crystals. The compound is characterized by its IR spectrum as well as by an X-ray structure determination. Space group P21/n, Z = 8, 5974 independent observed reflexions, R = 0.066. The lattice dimensions are at -70°C: a = 2110.7, b = 1109.5, c = 2120.4 pm; β = 111.17º. The compound forms ion pairs, in which the H atoms of the amidinium cation are coordinated with one chlorine ligand of the FeCl4- ion in a chelating manner.
    Notes: Die Titelverbindung [C6H5—C(NHSiMe3)2][FeCl4] entsteht in Form gelber feuchtigkeitsempfindlicher Kristalle bei der Einwirkung von Eisen(III)chlorid auf N,N,N'-Tris(trimethylsilyl)benzamidin in Gegenwart von Tetrahydrofuran. Die Verbindung wurde durch das IR-Spektrum und durch eine Kristallstrukturanalyse charakterisiert. Raumgruppe P21/n, Z = 8, 5974 unabhängige beobachtete Reflexe, R = 6,6%. Die Gitterkonstanten betragen bei -70°: a = 2110,7; b = 1109,5; c = 2120,4 pm; β = 111,17º. Die Verbindung bildet Ionenpaare, in denen die H-Atome des Amidiniumkations eines der Chloratome des FeCl4--Anions chelatartig umgeben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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