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A tris-spiro metalla-aromatic system featuring Craig-Möbius aromaticity

Author

Listed:
  • Zhe Huang

    (Peking University)

  • Yongliang Zhang

    (Peking University)

  • Wen-Xiong Zhang

    (Peking University)

  • Junnian Wei

    (Peking University)

  • Shengfa Ye

    (Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Max-Planck-Institut für Kohlenforschung)

  • Zhenfeng Xi

    (Peking University
    Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences)

Abstract

As aromaticity is one of the most fundamental concepts in chemistry, the construction of aromatic systems has long been an important subject. Herein, we report the synthesis and characterization of a tris-spiroaromatic complex, hexalithio spiro vanadacycle 2. The delocalization of the four electrons within the two V 3d orbitals and the π* orbitals of the three biphenyl ligands leads to a 40π Craig-Möbius aromatic system with three metalla-aromatic rings, as revealed by both experimental measurements and theoretical analyses. For comparison, if Cr is used instead of V, a similar Craig-Möbius aromatic system can not be generated. In this case, pentalithio spiro chromacycle 3 is obtained, and the Cr center uses its two 3d orbitals to form two independent metalla-aromatic rings. This work presents a type of aromatic systems that will contribute to both aromaticity theory and organometallic chemistry.

Suggested Citation

  • Zhe Huang & Yongliang Zhang & Wen-Xiong Zhang & Junnian Wei & Shengfa Ye & Zhenfeng Xi, 2021. "A tris-spiro metalla-aromatic system featuring Craig-Möbius aromaticity," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21648-9
    DOI: 10.1038/s41467-021-21648-9
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    Cited by:

    1. Binbin Xu & Wei Mao & Zhengyu Lu & Yuanting Cai & Dafa Chen & Haiping Xia, 2024. "Syntheses and reactivities of strained fused-ring metallaaromatics containing planar eleven-carbon chains," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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