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  • 1
    Publication Date: 1982-04-01
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 487 (1982), S. 111-118 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Vibrational Spectra of Tetramethyl-, Tetraethyl-, and TetraphenyldistibaneThe infrared spectra of liquid tetramethyldistibane from 4 000 to 20 cm-1, of liquid tetraethyldistibane and solid tetraphenyldistibane as well as the Raman spectra of liquid Me4Sb2 at 25 to 100° including the depolarisation values of the bands, of solid Me4Sb2 at 0°, of liquid Et4Sb2 and solid Ph4Sb2 are reported. Based on positions, relative intensities and polarisation values of the bands assignments are made, which include proposals for the positions of the Sb—Sb valence frequencies. In the case of Me4Sb2 it is possible to assign two frequencies, in the case of Et4Sb2 and Ph4Sb2 only one frequency to ν Sb—Sb. This corresponds to the presence of gauche and trans conformers in Me4Sb2 and of only one conformer in Et4Sb2 and Ph4Sb2.
    Notes: Die Infrarotspektren von flüssigem Tetramethyldistiban von 4 000 bis 20 cm-1, von flüssigem Tetraethyldistiban und von festem Tetraphenyldistiban von 4 000 bis 200 cm-1 sowie die Ramanspektren von flüssigem Me4Sb2 bei 25 bis 100° mit Angabe des Polarisationsgrades der Banden, von festem Me4Sb2 bei 0°, von flüssigem Et4Sb2 und festem Ph4Sb2 werden mitgeteilt. Aufgrund der Lage, der relativen Intensitäten und des Polarisationsgrades der Banden werden Zuordnungen getroffen, die Vorschläge für die Lage der Sb—Sb-Valenzschwingungen einschließen. Hierfür kommen im Fall von Me4Sb2 zwei, im Fall von Et4Sb2 und Ph4Sb2 nur eine Frequenz in Frage. Dies entspricht dem Vorliegen von gauche- und trans-Konformeren bei Me4Sb2 und nur eines Konformeren bei Et4Sb2 und Ph4Sb2.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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