Nanographenes as electron-deficient cores of donor-acceptor systems

Yu-Min Liu, Hao Hou, Yan-Zhen Zhou, Xin-Jing Zhao, Chun Tang, Yuan-Zhi Tan () and Klaus Müllen
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Yu-Min Liu: Xiamen University
Hao Hou: Xiamen University
Yan-Zhen Zhou: Xiamen University
Xin-Jing Zhao: Xiamen University
Chun Tang: Xiamen University
Yuan-Zhi Tan: Xiamen University
Klaus Müllen: Max Planck Institute for Polymer Research

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: 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.

Date: 2018
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DOI: 10.1038/s41467-018-04321-6

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