Synthesis and structures of silicon-, germanium-, and tin-containing imido-alkyl molybdenum complexes (ArN)2Mo(CH2EMe3)2 (E = Si, Ge, Sn) |
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Authors: | L N Bochkarev A V Nikitinskii A A Skatova Yu E Begantsova V I Shcherbakov I P Malysheva G V Basova G K Fukin Yu A Kurskii S Ya Khorshev Yu P Barinova G A Abakumov |
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Institution: | (1) G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603950 Nizhny Novgorod, Russian Federation |
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Abstract: | New silicon-, germanium-, and tin-containing imido-alkyl molybdenum complexes (ArN)2Mo(CH2EMe3)2 (Ar is 2,6-diisopropylphenyl; E = Si (1), Ge (2), Sn (3)) were prepared in the crystalline state in 58–66% yields by the reactions of the (ArN)2MoCl2(DME) complex with alkyllithium derivatives Me3ECH2Li (E = Si or Ge) or the Grignard reagents Me3ECH2MgCl (E = Ge or Sn). The structures of complexes 1–3 and the known analog (ArN)2Mo(CH2But)2 (4) were established by X-ray diffraction analysis. Complexes 1–3 were found to be isostructural. The coordination environment about the Mo atom can be described as a distorted tetrahedron. Complex 4 has a similar structure. The Mo-C distance tends to decrease with increasing electron donating ability of the EMe3 group.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 597–600, March, 2005. |
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Keywords: | imido-alkyl molybdenum complexes silicon- germanium- and tin-containing synthesis structure X-ray diffraction analysis |
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