Synthesis and structure determination of a stable organometallic uranium(v) imine complex and its isolobal anionic U(IV)-ate complex |
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Authors: | Manab Sharma Mark Botoshanskii Thomas Bannenberg Matthias Tamm Moris S. Eisen |
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Affiliation: | 1. Schulich Faculty of Chemistry, and Institute of Catalysis Science and Technology, Technion Israel Institute of Technology, 32000 Haifa, Israel;2. Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, 38106 Braunschweig, Germany |
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Abstract: | The reaction of one equivalent of Cp*2UCl2 with 2-(trimethylsilylimino)-1,3-di-tert-butylimidazoline in boiling toluene afforded a one electron oxidation of the uranium metal and the opening of the N-heterocyclic ring, resulting in the formation of an organometallic uranium(V) imine complex. This complex crystallized with one molecule of toluene in the unit cell, and its solid-state structure was determined by X-ray diffraction analysis. When the same reaction was performed in perdeuterated toluene, a myriad of organometallic complexes were obtained, however, when equimolar amounts of water were used in toluene, the same complex was obtained, and its solid state characterization shows two independent molecules in the unit cell with an additional water molecule. For comparison of the geometric parameters, the corresponding isolobal anionic uranium(IV) complex [Cp*2UCl3]? was synthesized by the reaction of Cp*2UCl2 with 1,3-di-tert-butylimidazolium chloride, and the resulting U(IV)-ate complex was characterized by X-ray diffraction analysis. |
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