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Coulombic-enhanced hetero radical pairing interactions

Author

Listed:
  • Xujun Zheng

    (Zhejiang University
    Wuhan University)

  • Yang Zhang

    (Zhejiang University)

  • Ning Cao

    (Zhejiang University)

  • Xin Li

    (Zhejiang University)

  • Shuoqing Zhang

    (Zhejiang University)

  • Renfeng Du

    (Zhejiang University)

  • Haiying Wang

    (Tianjin University)

  • Zhenni Ye

    (Zhejiang University)

  • Yan Wang

    (Zhejiang University)

  • Fahe Cao

    (Zhejiang University)

  • Haoran Li

    (Zhejiang University)

  • Xin Hong

    (Zhejiang University)

  • Andrew C.-H. Sue

    (Tianjin University)

  • Chuluo Yang

    (Wuhan University)

  • Wei-Guang Liu

    (University of Minnesota)

  • Hao Li

    (Zhejiang University)

Abstract

Spin–spin interactions between two identical aromatic radicals have been studied extensively and utilized to establish supramolecular recognition. Here we report that spin-pairing interactions could also take place between two different π-electron radicals, namely a bipyridinium radical cation (BPY+•) and a naphthalene-1,8:4,5-bis(dicarboximide) radical anion (NDI─•). The occurrence of this type of previously unreported hetero radical-pairing interactions is attributed to enhancement effect of Coulombic attraction between these two radicals bearing opposite charges. The Coulombic-enhanced hetero radical pairing interactions are employed to drive host–guest recognition, as well as the reversible switching of a bistable [2]rotaxane.

Suggested Citation

  • Xujun Zheng & Yang Zhang & Ning Cao & Xin Li & Shuoqing Zhang & Renfeng Du & Haiying Wang & Zhenni Ye & Yan Wang & Fahe Cao & Haoran Li & Xin Hong & Andrew C.-H. Sue & Chuluo Yang & Wei-Guang Liu & Ha, 2018. "Coulombic-enhanced hetero radical pairing interactions," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04335-0
    DOI: 10.1038/s41467-018-04335-0
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