A cerium(IV)-carbon multiple bond

Angew Chem Int Ed Engl. 2013 Dec 2;52(49):13016-9. doi: 10.1002/anie.201306984. Epub 2013 Oct 15.

Abstract

Straightforward access to a cerium(IV)-carbene complex was provided by one-electron oxidation of an anionic "ate" cerium(III)-carbene precursor, thereby avoiding decomposition reactions that plague oxidations of neutral cerium(III) compounds. The cerium(IV)-carbene complex is the first lanthanide(IV)-element multiple bond and involves a twofold bonding interaction of two electron pairs between cerium and carbon.

Keywords: carbenes; cerium; density functional theory; lanthanides; multiple bonding.