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Angew Chem Int Ed Engl. 2014 Feb 3;53(6):1626-9. doi: 10.1002/anie.201309764. Epub 2014 Jan 8.

A tetravalent cerium complex containing a Ce=O bond.

Author information

1
Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China).

Abstract

Whereas terminal oxo complexes of transition and actinide elements are well documented, analogous lanthanide complexes have not been reported to date. Herein, we report the synthesis and structure of a cerium(IV) oxo complex, [CeO(LOEt )2 (H2 O)]⋅MeC(O)NH2 (1; LOEt (-) =[Co(η(5) -C5 H5 ){P(O)(OEt)2 }3 ](-) ), featuring a short CeO bond (1.857(3) Å). DFT calculations indicate that the hydrogen bond to cocrystallized acetamide plays a key role in stabilizing the CeO moiety of 1 in the solid state. Complex 1 exhibits oxidizing and nucleophilic reactivity.

KEYWORDS:

cerium; crystal structure; density functional calculations; multiple bonds

PMID:
24403106
DOI:
10.1002/anie.201309764
[Indexed for MEDLINE]

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