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A Tetravalent Cerium Complex Containing a Ce[DOUBLE BOND]O Bond

Authors

  • Yat-Ming So,

    1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)
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    • These authors contributed equally to this work.

  • Dr. Guo-Cang Wang,

    1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)
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    • These authors contributed equally to this work.

  • Dr. Yang Li,

    1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)
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  • Dr. Herman H.-Y. Sung,

    1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China)
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  • Prof. Dr. Ian D. Williams,

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

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  • Prof. Dr. Zhenyang Lin,

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

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  • Prof. Dr. Wa-Hung Leung

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

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  • This work was supported by the Hong Kong Research Grants Council (602310) and the Hong Kong University of Science and Technology.

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[DOUBLE BOND]O(LOEt)2(H2O)]⋅MeC(O)NH2 (1; LOEt=[Co(η5-C5H5){P(O)(OEt)2}3]), featuring a short Ce[DOUBLE BOND]O bond (1.857(3) Å). DFT calculations indicate that the hydrogen bond to cocrystallized acetamide plays a key role in stabilizing the Ce[DOUBLE BOND]O moiety of 1 in the solid state. Complex 1 exhibits oxidizing and nucleophilic reactivity.

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