How to Manipulate Through-Space Conjugation and Clusteroluminescence of Simple AIEgens with Isolated Phenyl Rings.

Journal of the American Chemical Society
Jianyu ZhangBen Zhong Tang

Abstract

Apart from the traditional through-bond conjugation (TBC), through-space conjugation (TSC) is gradually proved as another important interaction in photophysical processes, especially for the recent observation of clusteroluminescence from nonconjugated molecules. However, unlike TBC in conjugated chromophores, it is still challenging to manipulate TSC and clusteroluminescence. Herein, simple and nonconjugated triphenylmethane (TPM) and its derivatives with electron-donating and electron-withdrawing groups were synthesized, and their photophysical properties were systematically studied. TPM was characterized with visible clusteroluminescence due to the intramolecular TSC. Experimental and theoretical results showed that the introduction of electron-donating groups into TPM could red-shift the wavelength and increase the efficiency of clusteroluminescence simultaneously, due to the increased electronic density and stabilization of TSC. However, TPM derivatives with electron-withdrawing groups showed inefficient or even quenched clusteroluminescence caused by the vigorous excited-state intramolecular motion and intermolecular photoinduced electron transfer process. This work provides a reliable strategy to manipulate TSC and clust...Continue Reading

References

Sep 21, 2002·Chemical Communications : Chem Comm·J LuoB Z Tang
Sep 26, 2008·Journal of the American Chemical Society·Yoshihiro YamaguchiZen-Ichi Yoshida
Sep 18, 1948·Nature·W F WATSON, R LIVINGSTON
Mar 2, 2013·Chemical Society Reviews·Jianzhang ZhaoSong Guo
Oct 11, 2014·Chemistry : a European Journal·Nelson L C LeungBen Zhong Tang
Oct 23, 2015·Chemical Reviews·Ju MeiBen Zhong Tang
Oct 25, 2017·Journal of the American Chemical Society·Haoke ZhangBen Zhong Tang
Aug 4, 2018·Nature Communications·Weijun ZhaoBen Zhong Tang
Feb 13, 2020·Angewandte Chemie·Zheng ZhaoBen Zhong Tang
Jun 10, 2020·Angewandte Chemie·Wenhan XuBen Zhong Tang
Aug 1, 2020·Advanced Materials·Haoke ZhangBen Zhong Tang
Oct 27, 2020·Advanced Science·Yujie TuBen Zhong Tang
Mar 4, 2021·Topics in Current Chemistry·Zhaoyu WangRuquan Ye

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Citations

Oct 2, 2021·Advanced Materials·Sheng-Yi YangShuit-Tong Lee
Nov 28, 2021·ChemMedChem·Hanchen ShenBen Zhong Tang

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