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  • 1
    ISSN: 0044-2313
    Keywords: Cobalt ; silanethiolate ; thiolate complex ; synthesis ; structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Beiträge zur Chemie der Silicium - Schwefel-Verbindungen. 66 Darstellung, Kristall- und Molekülstruktur von Bis(tri-tert-butoxysilanthiolato)(acetonitril)cobalt(II) [(t-C4H9O)3SiS2Co(NCCH3)Die Titelverbindung [(t-C4H9O)3SiS]2Co(NCCH3) 1 wurde durch Umsetzung von wasserfreiem Cobalt(II)-dichlorid mit Tri-tert-butoxysilanthiol und Triethylamin in Acetonitril-Lösung dargestellt. Die Verbindung kristallisiert in dunkelblauen orthorhombischen Plättchen mit a = 17,779(4), b = 45,363(9), c = 9,096(2) Å, Raumgruppe Fdd2 und Z = 8. Die Struktur wurde mittels Patterson-Synthese gelöst und bis R = 0,0343 verfeinert.Die Kristalle sind aus einkernigen Komplexen aufgebaut. Kobalt ist durch zwei Schwefel, zwei Sauerstoff und ein Stickstoff in einer verzerrten trigonal bipyramidaler Struktur fünffach koordiniert. Die wichtigsten Abstände und Winkel sind: Co—S, 2,2680(7); Co—N, 2,065(4); Co—O1, 2,283(2); S—Si, 2,0666(8) Å; S—Co—S′, 119,14(4); N—Co—S, 120,43(2); O1—Co—O1′, 178,81(10)°.
    Notes: The title compound [(t-C4H9O)3SiS]2Co(NCCH3)]1 was obtained by reaction of anhydrous cobalt(II) chloride with tri-tert-butoxysilanethiol and triethylamine in acetonitrile as a solvent. The compound crystallizes as deep-blue orthorhombic plates with a = 17.779(4), b = 45.363(9), c = 9.096(2) Å, space group Fdd2 and Z = 8. The structure was solved by Patterson synthesis and refined to the R value of 0.0343.The crystal consists of mononuclear complexes in which the cobalt atom is five-fold coordinated to two sulphurs, two oxygens and one nitrogen in a distorted trigonal bipyramidal arrangement. The relevant bond distances and angles are: Co—S, 2.2680(7); Co—N, 2.065(4); Co—O1, 2.283(2); S—Si, 2.0666(8) Å; S—Co—S′, 119.14(4); N—Co—S, 120.43(2); O1—Co—O1′, 178.81(10)°.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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