Nanographenes As Electron-deficient Cores of Donor-acceptor Systems

Overview

Journal Nat Commun

Specialty Biology

Date 2018 May 17

PMID 29765041

Citations 11

Authors

Yu-Min Liu

Hao Hou

Yan-Zhen Zhou

Xin-Jing Zhao

Chun Tang

Yuan-Zhi Tan

Klaus Mullen

Affiliations

Soon will be listed here.

Abstract

Conjugation of nanographenes (NGs) with electro-active molecules can establish donor-acceptor π-systems in which the former generally serve as the electron-donating moieties due to their electronic-rich nature. In contrast, here we report a series of reversed donor-acceptor structures are obtained by C-N coupling of electron-deficient perchlorinated NGs with electron-rich anilines. Selective amination at the vertexes of the NGs is unambiguously shown through X-ray crystallography. By varying the donating ability of the anilino groups, the optical and assembly properties of donor-acceptor NGs can be finely modulated. The electron-deficient concave core of the resulting conjugates can host electron-rich guest molecules by intermolecular donor-acceptor interactions and gives rise to charge-transfer supramolecular architectures.

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