| 1 | Complex Featuring Two Double Dative Bonds Between Carbon(0)and Uranium显示文摘The uranyl with two U=O double bonds is a wellknown and predominant form of uranium in the environment,but the carbon-based analog with two U=C double bonds has rarely been synthesized.Here,we describe the formation of an unprecedented uranium complex[(PyPh_(2)P)_(2)C]_(2)UCl_(2)]^(2+)·2(BPh_(4)^(−))from the reaction of UCl4 with carbodiphosphorane in the presence of NaBPh4.The nature of the U-C bonds was revealed by density functional theory calculations,which show that the 5f and 6d orbital electrons of uranium are remarkably involved in the U=C double bonds.The inspection of the bonding characteristics with an energy decomposition analysis suggests that the uranium-ligand bond may be alternatively described with double dative bonds[C⇉U⇇C]or strong electron-sharing π bonds and weak σ bonds. | Wei Fang Sudip Pan Wei Su Shuao Wang Lili Zhao Gernot Frenking Congqing Zhu | 2022 | CCS Chemistry2022，4，6： | 0 |
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