Article,

Fluorescence Enhancement by Supramolecular Sequestration of a C54-Nanographene Trisimide by Hexabenzocoronene

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J. Am. Chem. Soc., 144 (13): 5718--5722 (March 2022)
DOI: 10.1021/jacs.2c00142

Abstract

A supramolecular trilayer nanographene complex consisting of a newly synthesized D3h-symmetric C 54-nanographene trisimide (NTI 1) and two hexabenzocoronenes (HBC) has been obtained by self-assembly. This 1:2 complex is structurally well- defined according to UV/vis and single crystal X-ray studies and exhibits high thermodynamic stability even in polar halogenated solvents. Complexation of NTI 1 by two HBC molecules protects the NTI 1 π-surface efficiently from oxygen quenching, thereby leading to a sequestration-induced fluorescence enhancement under ambient conditions.

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