Double dative bond between divalent carbon(0) and uranium. Issue 1 (December 2018)

• Record Type: Journal Article
• Authors: Su, Wei; Pan, Sudip; Sun, Xiong; Wang, Shuao; Zhao, Lili; Frenking, Gernot; Zhu, Congqing
• Is Part Of: Nature communications. Volume 9:Issue 1(2018)
• Page Start: 1
• Page End: 8
• Publication Date: 2018-12
• Subjects: Biology -- Periodicals; Physical sciences -- Periodicals; 505
• DOI: 10.1038/s41467-018-07377-6
• Languages: English
• ISSNs: 2041-1723

Abstract

Abstract Dative bonds betweenp - andd -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 Cl4 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 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 inf -block chemistry. Our study not only introduces the concept of double dative bonds between carbones andf -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. While chemical bonding between carbon and thed - andp -block elements is relatively well-studied, that between carbon and thef -block elements remains comparatively poorly understood. Here, the authors synthesize a series of uranium−carbone complexes in which carbon forms an unprecedented double dative bond to uranium.