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  • Organosilicon compounds  (1)
  • Titanium complexes  (1)
  • 1995-1999  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Derivate des Imidazols, XIII. Carben-Komplexe des Siliciums und ZinnsHerrn Professor Peter Paetzold zum 60. Geburtstag gewidmet. (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 245-250 
    Details
    ISSN: 0009-2940
    Keywords: Carbenes ; Organosilicon compounds ; Organotin compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Imidazole Derivatives, XIII. - Carbene Complexes of Silicon and TinHerrn Professor Peter Paetzold zum 60. Geburtstag gewidmet.Stable adducts of the composition L · SiCl4 (2), L · SiR2Cl2 (3,4), and L · SnR2Cl2 (6) are formed by the reaction of the imidazol-2-ylidenes L (1) with the corresponding silicon and tin halides. For L = SiCl4 (2b; L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene) and L · SnPh2Cl2 (6c; L = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) the monomeric nature of the compounds containing pentacoordinated silicon and tin is established by X-ray structure analyses. The reaction of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (1c) with SnCl2 leads to the formation of the monomeric stannylene complex L · SnCl2 (7c; L = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) whose molecular geometry indicates a week carbon-to-tin donor bond [Sn—C(1) 2.290(5) Å].
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280307
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  • 2
    Electronic Resource
    Electronic Resource
    Derivate des Imidazols. XXII. Imidazoliniminato-Komplexe des Titans. Synthese und Kristallstrukturen von [(ImN)TiCl3]2 und [(ImN)TiCl3 · 2 MeCN] (ImN = 1,3-Dimethylimidazolin-2-imino)Professor Joachim Strähle zum 60. Geburtstag gewidmet (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 769-774 
    Details
    ISSN: 0044-2313
    Keywords: Titanium complexes ; imidazolinimiato complexes ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Imidazole Derivatives. XXII. Imidazoliniminato Complexes of Titanium. Syntheses and X-Ray Structures of [ImNTiCl3]2 and [ImNTiCl3 · 2 MeCN] (ImN = 1,3-Imidazolin-2-imino)1,3-Dimethyl-2-trimethylsilyliminoimidazoline(ImNSiMe3, 7) reacts with TiCl4 in n-pentane to give the dinuclear complex [(ImN)TiCl3]2 (8) which is transferred into the mononuclear compound (ImN)TiCl3 · 2 MeCN (9) on treatment with acetonitrile. The X-ray structure analyses demonstrate the strong donor ability of the imidazoliniminato substituent both in the terminal and bridging coordination mode similar to that of the phosphaniminato group R3PN.
    Notes: 1,3-Dimethyl-2trimethylsilyliminoimidazolin(ImNSiMe3, 7) reagiert mit TiCl4 in n-Pentan zum Zweikernkomplex[(ImN)TiCl3]2 (8), der durch Acetonitril in die einkernige Verbindung [(ImN)TiCl3 · 2 MeCN] (9) überführt wird. Die Kristallstrukturanalyse zeigt die starken Donoreigenschaften der Imidazoliniminato-Gruppe ImN in verbrückender wie endständiger Koordination vergleichbar der des Phosphaniminato-Liganden R3PN.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.199762301121
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