Complexes Featuring a cis-[M
U
M] Core (M=Rh,Ir): A New Route to Uranium-Metal Multiple Bonds |
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| Authors: | Jinghang Shen Thayalan Rajeshkumar Genfeng Feng Yue Zhao Shuao Wang Laurent Maron Congqing Zhu |
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| Institution: | 1. State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 China;2. LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France;3. State Key Laboratory of Radiation Medicine and Protection, School for Radiological and interdisciplinary Sciences (RAD−X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China |
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| Abstract: | Although examples of multiple bonds between actinide elements and main-group elements are quite common, studies of the multiple bonds between actinide elements and transition metals are extremely rare owing to difficulties associated with their synthesis. Here we report the first example of molecular uranium complexes featuring a cis-M U M] core (M=Rh, Ir), which exhibits an unprecedented arrangement of two M U double dative bond linkages to a single U center. These complexes were prepared by the reactions of chlorine-bridged heterometallic complexes {U{N(CH3)(CH2CH2NPiPr2)2}(Cl)2(μ-Cl)M(COD)]2}] (M=Rh, Ir) with MeMgBr or MeLi, a new method for the construction of species with U−M multiple bonds. Theoretical calculations including dispersion confirmed the presence of two U M double dative bonds in these complexes. This study not only enriches the U M multiple bond chemistry, but also provides a new opportunity to explore the bonding of actinide elements. |
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| Keywords: | DFT Calculations Double Dative Bond Metal-Metal Bond Uranium Uranium-Metal Multiple Bonds |
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