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Accessing five oxidation states of uranium in a retained ligand framework

Author

Listed:
  • Chong Deng

    (Peking University)

  • Jiefeng Liang

    (Peking University)

  • Rong Sun

    (Peking University
    Beijing Key Laboratory for Magnetoelectric Materials and Devices)

  • Yi Wang

    (Peking University)

  • Peng-Xiang Fu

    (Peking University)

  • Bing-Wu Wang

    (Peking University
    Beijing Key Laboratory for Magnetoelectric Materials and Devices)

  • Song Gao

    (Peking University
    South China University of Technology)

  • Wenliang Huang

    (Peking University)

Abstract

Understanding and exploiting the redox properties of uranium is of great importance because uranium has a wide range of possible oxidation states and holds great potential for small molecule activation and catalysis. However, it remains challenging to stabilise both low and high-valent uranium ions in a preserved ligand environment. Herein we report the synthesis and characterisation of a series of uranium(II–VI) complexes supported by a tripodal tris(amido)arene ligand. In addition, one- or two-electron redox transformations could be achieved with these compounds. Moreover, combined experimental and theoretical studies unveiled that the ambiphilic uranium–arene interactions are the key to balance the stabilisation of low and high-valent uranium, with the anchoring arene acting as a δ acceptor or a π donor. Our results reinforce the design strategy to incorporate metal–arene interactions in stabilising multiple oxidation states, and open up new avenues to explore the redox chemistry of uranium.

Suggested Citation

  • Chong Deng & Jiefeng Liang & Rong Sun & Yi Wang & Peng-Xiang Fu & Bing-Wu Wang & Song Gao & Wenliang Huang, 2023. "Accessing five oxidation states of uranium in a retained ligand framework," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40403-w
    DOI: 10.1038/s41467-023-40403-w
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    References listed on IDEAS

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    1. Alexander R. Fox & Suzanne C. Bart & Karsten Meyer & Christopher C. Cummins, 2008. "Towards uranium catalysts," Nature, Nature, vol. 455(7211), pages 341-349, September.
    2. Dominik P. Halter & Frank W. Heinemann & Julien Bachmann & Karsten Meyer, 2016. "Uranium-mediated electrocatalytic dihydrogen production from water," Nature, Nature, vol. 530(7590), pages 317-321, February.
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