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A supramolecular lanthanide separation approach based on multivalent cooperative enhancement of metal ion selectivity

Author

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  • Xiao-Zhen Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Li-Peng Zhou

    (Chinese Academy of Sciences)

  • Liang-Liang Yan

    (Chinese Academy of Sciences)

  • Ya-Min Dong

    (Chinese Academy of Sciences)

  • Zhuan-Ling Bai

    (Soochow University)

  • Xiao-Qi Sun

    (Chinese Academy of Sciences
    Chinese Academy of Sciences)

  • Juan Diwu

    (Soochow University)

  • Shuao Wang

    (Soochow University)

  • Jean-Claude Bünzli

    (Swiss Federal Institute of Technology)

  • Qing-Fu Sun

    (Chinese Academy of Sciences)

Abstract

Multivalent cooperativity plays an important role in the supramolecular self-assembly process. Herein, we report a remarkable cooperative enhancement of both structural integrity and metal ion selectivity on metal-organic M4L4 tetrahedral cages self-assembled from a tris-tridentate ligand (L1) with a variety of metal ions spanning across the periodic table, including alkaline earth (CaII), transition (CdII), and all the lanthanide (LnIII) metal ions. All these M4L14 cages are stable to excess metal ions and ligands, which is in sharp contrast with the tridentate (L2) ligand and bis-tridentate (L3) ligand bearing the same coordination motif as L1. Moreover, high-precision metal ion self-sorting is observed during the mixed-metal self-assembly of tetrahedral M4L4 cages, but not on the M2L3 counterparts. Based on the strong cooperative metal ion self-recognition behavior of M4L4 cages, a supramolecular approach to lanthanide separation is demonstrated, offering a new design principle of next-generation extractants for highly efficient lanthanide separation.

Suggested Citation

  • Xiao-Zhen Li & Li-Peng Zhou & Liang-Liang Yan & Ya-Min Dong & Zhuan-Ling Bai & Xiao-Qi Sun & Juan Diwu & Shuao Wang & Jean-Claude Bünzli & Qing-Fu Sun, 2018. "A supramolecular lanthanide separation approach based on multivalent cooperative enhancement of metal ion selectivity," Nature Communications, Nature, vol. 9(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-02940-7
    DOI: 10.1038/s41467-018-02940-7
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    Cited by:

    1. Qing-Hua Hu & An-Min Song & Xin Gao & Yu-Zhen Shi & Wei Jiang & Ru-Ping Liang & Jian-Ding Qiu, 2024. "Rationally designed nanotrap structures for efficient separation of rare earth elements over a single step," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    2. Joseph G. O’Connell-Danes & Bryne T. Ngwenya & Carole A. Morrison & Jason B. Love, 2022. "Selective separation of light rare-earth elements by supramolecular encapsulation and precipitation," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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