Dinuclear Molybdenum(II) Complexes with Thioether Functionalized Silylamide Ligands |
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| Authors: | Uwe Morgenstern Christoph Wagner Kurt Merzweiler |
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| Affiliation: | Institut für Chemie, Naturwissenschaftliche Fakultät II, Universität Halle, Kurt-Mothes-Str. 2, 06120 Halle, Germany |
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| Abstract: | Treatment of molybdenum(II) acetate with thioether functionalized silylamides R2Si(NLi-C6H4–2-SR')2 leads to the formation of dinuclear MoII complexes [Mo2{R2Si(NC6H4-2-SR')2}2]. According to X-ray crystal structure analyses the complexes [Mo2{Me2Si(NC6H4-2-SMe)2}2] and [Mo2{Ph2Si(NC6H4-2-SPh)2}2] comprise a Mo2-unit which is coordinated by two μ-κ-N,N' silylamide ligands. The coordination sphere around the molybdenum atoms consists of two amide nitrogen atoms and two thioether sulfur atoms in a distorted square-planar arrangement. The Mo-Mo distances are 211.0(1) and 211.7(1) pm, resp. In the complex [Mo2{Ph2Si(NC6H4-2-SMe)2}2] the silyl amide units act as tetradentate κ-N,N',S,S'chelating ligands and the Mo-Mo distance is 218.6(1) pm. |
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| Keywords: | Amide Thioether Crystal structure Molybdenum X-ray diffraction |
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