Details

Autor(en) / Beteiligte

• Cheung, Kwan Yin
• Chan, Chi Kit
• Liu, Zhifeng
• Miao, Qian

Titel

A Twisted Nanographene Consisting of 96 Carbon Atoms

Ist Teil von

• Angewandte Chemie International Edition, 2017-07, Vol.56 (31), p.9003-9007

Auflage

International ed. in English

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Herein we report synthesis, structure and properties of a new type of twisted nanographene, which contains an [8]circulene moiety in a polycyclic framework of 96 sp2 carbon atoms. The key steps in this synthesis are the Diels–Alder reaction of a macrocyclic diyne and the subsequent Scholl reaction forming the [8]circulene moiety. Two incompletely cyclized products were isolated from the Scholl reaction, providing insight into the cyclization of the strained octagon. This nanographene is twisted along two directions with end‐to‐end twists of 142.4° and 140.2° as revealed by X‐ray crystallography, and is flexible at room temperature as found from the computational and experimental studies. A new type of twisted nanographene containing an [8]circulene moiety in a polycyclic framework of 96 sp2 carbon atoms was synthesized from a macrocyclic diyne (see picture). Its structure was studied with X‐ray crystallography and DFT calculations.