Graphene‐like Molecules with Four Zigzag Edges. (2nd May 2018)

• Record Type: Journal Article
• Authors: Gu, Yanwei; Wu, Xiaojin; Gopalakrishna, Tullimilli Y.; Phan, Hoa; Wu, Jishan
• Is Part Of: Angewandte Chemie. Volume 130:Number 22(2018)
• Page Start: 6651
• Page End: 6655
• Publication Date: 2018-05-02
• Subjects: Aromatizität -- Graphen -- Polycyclen -- Radikale -- Strukturaufklärung; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201802818
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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. Abstract : Im Zickzack : Eine effiziente Route führt zu Graphen‐artigen Molekülen (GLMs) mit vier Zickzack‐Kanten. Die Produkte unterschieden sich in ihren geometrischen und elektronischen Eigenschaften von vergleichbaren Verbindungen mit anderen Kantenstrukturen. Zudem verfügen sie über mäßig große Energielücken und globale Aromatizität.