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Article Abstract
Formation of a rare terminal U(IV) hydride complex, [(CMe)(2,6-Bu-4-MeCHO)U(H)], was accomplished through the hydrogenation of a uranium(IV) metallocene hydrocarbyl complex. The reactivity of this hydride was probed with a variety of substrates to examine sigma-bond metathesis, PhEEPh (E = S, Se, Te), and insertion (CO, CH═CH) reactivity. While the reaction of CO did not produce an isolable result, using the U(IV) hydride with a less sterically encumbering mesityl aryloxide, an ethenediolate is formed, [{(CMe)(MesO)U}(μ-OC(H)═C(H)O], Mes = mesityl, 2,4,6-MeCH. Each complex has been characterized by NMR, IR, and X-ray crystallographic analysis.
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Department of Chemistry, University of Missouri, Columbia, MO 65211, USA.
Formation of a rare terminal U(IV) hydride complex, [(CMe)(2,6-Bu-4-MeCHO)U(H)], was accomplished through the hydrogenation of a uranium(IV) metallocene hydrocarbyl complex. The reactivity of this hydride was probed with a variety of substrates to examine sigma-bond metathesis, PhEEPh (E = S, Se, Te), and insertion (CO, CH═CH) reactivity. While the reaction of CO did not produce an isolable result, using the U(IV) hydride with a less sterically encumbering mesityl aryloxide, an ethenediolate is formed, [{(CMe)(MesO)U}(μ-OC(H)═C(H)O], Mes = mesityl, 2,4,6-MeCH.
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