Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process

Zheng Zhao; Xiaoyan Zheng; Lili Du; Yu Xiong; Wei He; Xiuxiu Gao; Chunli Li; Yingjie Liu; Bin Xu; Jing Zhang; Fengyan Song; Ying Yu; Xueqian Zhao; Yuanjing Cai; Xuewen He; Ryan T.K. Kwok; Jacky W.Y. Lam; Xuhui Huang; David Lee Phillips; Hua Wang; Ben Zhong Tang

doi:10.1038/s41467-019-10818-5

Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process

Zheng Zhao, Xiaoyan Zheng, Lili Du, Yu Xiong, Wei He, Xiuxiu Gao, Chunli Li, Yingjie Liu, Bin Xu, Jing Zhang, Fengyan Song, Ying Yu, Xueqian Zhao, Yuanjing Cai, Xuewen He, Ryan T.K. Kwok, Jacky W.Y. Lam, Xuhui Huang, David Lee Phillips, Hua WangBen Zhong Tang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

135 Citations (Scopus)

Abstract

Aggregation-induced emission (AIE) is a photophysical phenomenon correlated closely with the excited-state intramolecular motions. Although AIE has attracted increasing attention due to the significant applications in biomedical and optoelectronics, an in-depth understanding of the excited-state intramolecular motion has yet to be fully developed. Here we found the non-aromatic annulene derivative of cyclooctatetrathiophene shows typical AIE phenomenon in spite of its rotor-free structure. The underlying mechanism is investigated through photoluminescence spectra, time-resolved absorption spectra, theoretical calculations, circular dichroism as well as by pressure-dependent fluorescent spectra etc., which indicate that the aromaticity reversal from ground state to the excited state serves as a driving force for inducing the excited-state intramolecular vibration, leading to the AIE phenomenon. Therefore, aromaticity reversal is demonstrated as a reliable strategy to develop vibrational AIE systems. This work also provides a new viewpoint to understand the excited-state intramolecular motion behavior of lumiongens.

Original language	English
Article number	2952
Journal	Nature Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-019-10818-5
Publication status	Published - 1 Dec 2019

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Zhao, Z., Zheng, X., Du, L., Xiong, Y., He, W., Gao, X., Li, C., Liu, Y., Xu, B., Zhang, J., Song, F., Yu, Y., Zhao, X., Cai, Y., He, X., Kwok, R. T. K., Lam, J. W. Y., Huang, X., Lee Phillips, D., ... Tang, B. Z. (2019). Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process. Nature Communications, 10(1), Article 2952. https://doi.org/10.1038/s41467-019-10818-5

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title = "Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process",

abstract = "Aggregation-induced emission (AIE) is a photophysical phenomenon correlated closely with the excited-state intramolecular motions. Although AIE has attracted increasing attention due to the significant applications in biomedical and optoelectronics, an in-depth understanding of the excited-state intramolecular motion has yet to be fully developed. Here we found the non-aromatic annulene derivative of cyclooctatetrathiophene shows typical AIE phenomenon in spite of its rotor-free structure. The underlying mechanism is investigated through photoluminescence spectra, time-resolved absorption spectra, theoretical calculations, circular dichroism as well as by pressure-dependent fluorescent spectra etc., which indicate that the aromaticity reversal from ground state to the excited state serves as a driving force for inducing the excited-state intramolecular vibration, leading to the AIE phenomenon. Therefore, aromaticity reversal is demonstrated as a reliable strategy to develop vibrational AIE systems. This work also provides a new viewpoint to understand the excited-state intramolecular motion behavior of lumiongens.",

author = "Zheng Zhao and Xiaoyan Zheng and Lili Du and Yu Xiong and Wei He and Xiuxiu Gao and Chunli Li and Yingjie Liu and Bin Xu and Jing Zhang and Fengyan Song and Ying Yu and Xueqian Zhao and Yuanjing Cai and Xuewen He and Kwok, {Ryan T.K.} and Lam, {Jacky W.Y.} and Xuhui Huang and {Lee Phillips}, David and Hua Wang and Tang, {Ben Zhong}",

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year = "2019",

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day = "1",

doi = "10.1038/s41467-019-10818-5",

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Zhao, Z, Zheng, X, Du, L, Xiong, Y, He, W, Gao, X, Li, C, Liu, Y, Xu, B, Zhang, J, Song, F, Yu, Y, Zhao, X, Cai, Y, He, X, Kwok, RTK, Lam, JWY, Huang, X, Lee Phillips, D, Wang, H & Tang, BZ 2019, 'Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process', Nature Communications, vol. 10, no. 1, 2952. https://doi.org/10.1038/s41467-019-10818-5

TY - JOUR

T1 - Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process

AU - Zhao, Zheng

AU - Zheng, Xiaoyan

AU - Du, Lili

AU - Xiong, Yu

AU - He, Wei

AU - Gao, Xiuxiu

AU - Li, Chunli

AU - Liu, Yingjie

AU - Xu, Bin

AU - Zhang, Jing

AU - Song, Fengyan

AU - Yu, Ying

AU - Zhao, Xueqian

AU - Cai, Yuanjing

AU - He, Xuewen

AU - Kwok, Ryan T.K.

AU - Lam, Jacky W.Y.

AU - Huang, Xuhui

AU - Lee Phillips, David

AU - Wang, Hua

AU - Tang, Ben Zhong

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Aggregation-induced emission (AIE) is a photophysical phenomenon correlated closely with the excited-state intramolecular motions. Although AIE has attracted increasing attention due to the significant applications in biomedical and optoelectronics, an in-depth understanding of the excited-state intramolecular motion has yet to be fully developed. Here we found the non-aromatic annulene derivative of cyclooctatetrathiophene shows typical AIE phenomenon in spite of its rotor-free structure. The underlying mechanism is investigated through photoluminescence spectra, time-resolved absorption spectra, theoretical calculations, circular dichroism as well as by pressure-dependent fluorescent spectra etc., which indicate that the aromaticity reversal from ground state to the excited state serves as a driving force for inducing the excited-state intramolecular vibration, leading to the AIE phenomenon. Therefore, aromaticity reversal is demonstrated as a reliable strategy to develop vibrational AIE systems. This work also provides a new viewpoint to understand the excited-state intramolecular motion behavior of lumiongens.

AB - Aggregation-induced emission (AIE) is a photophysical phenomenon correlated closely with the excited-state intramolecular motions. Although AIE has attracted increasing attention due to the significant applications in biomedical and optoelectronics, an in-depth understanding of the excited-state intramolecular motion has yet to be fully developed. Here we found the non-aromatic annulene derivative of cyclooctatetrathiophene shows typical AIE phenomenon in spite of its rotor-free structure. The underlying mechanism is investigated through photoluminescence spectra, time-resolved absorption spectra, theoretical calculations, circular dichroism as well as by pressure-dependent fluorescent spectra etc., which indicate that the aromaticity reversal from ground state to the excited state serves as a driving force for inducing the excited-state intramolecular vibration, leading to the AIE phenomenon. Therefore, aromaticity reversal is demonstrated as a reliable strategy to develop vibrational AIE systems. This work also provides a new viewpoint to understand the excited-state intramolecular motion behavior of lumiongens.

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VL - 10

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 2952

ER -

Non-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process

Abstract

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