University Chemistry ›› 2021, Vol. 36 ›› Issue (8): 2009060.doi: 10.3866/PKU.DXHX202009060

• Survey of Chemistry • Previous Articles     Next Articles

Recent Progress on the Concepts of Aromaticity

Baolei Huang, Hao Sun, Xinye Li, Yuting Fan, Tao Tao()   

  • Received:2020-09-28 Accepted:2020-10-15 Published:2020-11-25
  • Contact: Tao Tao E-mail:taotao@nuist.edu.cn

Abstract:

Aromaticity is a key concept in organic chemistry. It dated back to Faraday's discovery of benzene in 1825 and Kekulé's famous alternating-double-bond structure of 1865, and is still evolving in recent years. At present, some examples of anti-Hückel's rule have been proposed gradually, including Möbius aromaticity rule and Baird's rule. In particular, scientists put forward new concepts of 3D aromaticity and global aromaticity. This review not only introduces the experimental and theoretical criteria of aromaticity, but also summarizes several new aromaticity systems through porphyrin nanoring, macrocyclic polyradical and polycyclic π-conjugated system. In addition, it covers the applications of aromaticity and briefly discussed recent progress on the concepts of aromaticity.

Key words: Aromaticity, 3D aromaticity, Global aromaticity, Hückel's rule, Baird's rule

MSC2000: 

  • G64