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Double dative bond between divalent carbon(0) and uranium.

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.

SUBMITTER: Su W

PROVIDER: S-EPMC6258733 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Double dative bond between divalent carbon(0) and uranium.

Su Wei W Pan Sudip S Sun Xiong X Wang Shuao S Zhao Lili L Frenking Gernot G Zhu Congqing C

Nature communications 20181127 1

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 UCl<sub>4</sub> and carbodiphosphoranes (CDP), which formally possess double dative bonds Cl<sub>4</sub>U⇇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 analy ...[more]

PMID: 30479324

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