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Couple-close construction of non-classical boron cluster-phosphonium conjugates

Author

Listed:
  • Zhaofeng Sun

    (Nanjing University)

  • Jibo Zong

    (Nanjing University)

  • Hongyuan Ren

    (Nanjing University)

  • Changsheng Lu

    (Nanjing University)

  • Deshuang Tu

    (Nanjing University)

  • Jordi Poater

    (Universitat de Barcelona
    Pg. Lluís Companys 23)

  • Miquel Solà
  • Zhuangzhi Shi

    (Nanjing University)

  • Hong Yan

    (Nanjing University)

Abstract

Heteropolycyclic molecular systems, which are essential components in the fields of materials and pharmacology, frequently consist of 2D extended organic aromatic rings. Here, we introduce a type of inorganic-organic hybrid 3D conjugates by merging an aromatic boron cluster with a phosphine and a π-conjugated unit. To achieve this, a couple-close synthetic strategy via B–H activation of nido-carboranes with alkynes has been developed, which leads to diverse boron cluster-extended phosphoniums in a twisted structure with high yields under mild conditions. Experimental and theoretical results reveal that the fusion between the boron cluster and the formed borophosphonium heterocycle facilitates electron delocalization throughout the structure. The unusual framework demonstrates distinct properties from bare boron clusters and pure aromatic ring-extended counterparts, such as improved thermal/chemical stability and photophysical properties. Thus, the boron cluster-based 3D conjugates expand the library of aromatic-based heterocyclics, showcasing great potential in functional materials.

Suggested Citation

  • Zhaofeng Sun & Jibo Zong & Hongyuan Ren & Changsheng Lu & Deshuang Tu & Jordi Poater & Miquel Solà & Zhuangzhi Shi & Hong Yan, 2024. "Couple-close construction of non-classical boron cluster-phosphonium conjugates," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51506-3
    DOI: 10.1038/s41467-024-51506-3
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    References listed on IDEAS

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    1. John F. Hartwig, 2008. "Carbon–heteroatom bond formation catalysed by organometallic complexes," Nature, Nature, vol. 455(7211), pages 314-322, September.
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