• 文献标题:   Graphene-like Molecules with Four Zigzag Edges
  • 文献类型:   Article
  • 作  者:   GU YW, WU XJ, GOPALAKRISHNA TY, PHAN H, WU JS
  • 作者关键词:   aromaticity, graphene, polycycle, radical, structure elucidation
  • 出版物名称:   ANGEWANDTE CHEMIEINTERNATIONAL EDITION
  • ISSN:   1433-7851 EI 1521-3773
  • 通讯作者地址:   Natl Univ Singapore
  • 被引频次:   9
  • DOI:   10.1002/anie.201802818
  • 出版年:   2018

▎ 摘  要

An efficient synthetic method toward graphene-like molecules (GLMs), having four zigzag edges, is described. They were obtained as stable materials and their structures were confirmed by X-ray crystallographic analysis. They exhibit topology- and size-dependent electronic properties and global aromaticity, which are all different from GLMs having either all-armchair edges, or three zigzag edges, or two armchair/two zigzag edges. They can be reversibly oxidized and reduced into stable charged species, which show fragmental aromatic character to minimize anti-aromaticity. Our studies give some new insights into the electronic structures and properties of a new type of rarely studied GLMs.