Double dative bond between divalent carbon(0) and uranium

Wei Su, Sudip Pan, Xiong Sun, Shuao Wang, Lili Zhao (), Gernot Frenking () and Congqing Zhu ()
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Wei Su: Nanjing University
Sudip Pan: Nanjing Tech University
Xiong Sun: Nanjing University
Shuao Wang: Soochow University
Lili Zhao: Nanjing Tech University
Gernot Frenking: Nanjing Tech University
Congqing Zhu: Nanjing University

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Dative bonds between p- and d-block atoms are common but species containing a double dative bond, which donate two-electron pairs to the same acceptor, are far less common. The synthesis of complexes between UCl4 and carbodiphosphoranes (CDP), which formally possess double dative bonds Cl4U⇇CDP, is reported in this paper. Single-crystal X-ray diffraction shows that the uranium−carbon distances are in the range of bond lengths for uranium−carbon double bonds. A bonding analysis suggests that the molecules are uranium−carbone complexes featuring divalent carbon(0) ligands rather than uranium−carbene species. The complexes represent rare examples with a double dative bond in f-block chemistry. Our study not only introduces the concept of double dative bonds between carbones and f-block elements but also opens an avenue for the construction of other complexes with double dative bonds, thus providing new opportunities for the applications of f-block compounds.

Date: 2018
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DOI: 10.1038/s41467-018-07377-6

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