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

TitleNon-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process
Authors
Issue Date2019
PublisherNature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html
Citation
Nature Communications, 2019, v. 10, p. article no. 2952 How to Cite?
AbstractAggregation-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.
Persistent Identifierhttp://hdl.handle.net/10722/273838
ISSN
2017 Impact Factor: 12.353
2015 SCImago Journal Rankings: 6.539
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhao, Z-
dc.contributor.authorZheng, XY-
dc.contributor.authorDu, L-
dc.contributor.authorXiong, Y-
dc.contributor.authorHe, W-
dc.contributor.authorGao, XX-
dc.contributor.authorLi, CL-
dc.contributor.authorLiu, YJ-
dc.contributor.authorXu, B-
dc.contributor.authorZhang, J-
dc.contributor.authorSong, FY-
dc.contributor.authorYu, Y-
dc.contributor.authorZhao, XD-
dc.contributor.authorCai, YJ-
dc.contributor.authorHe, XW-
dc.contributor.authorKwok, RTK-
dc.contributor.authorLam, JWY-
dc.contributor.authorHuang, XH-
dc.contributor.authorPhillips, DL-
dc.contributor.authorWang, H-
dc.contributor.authorTang, BZ-
dc.date.accessioned2019-08-18T14:49:35Z-
dc.date.available2019-08-18T14:49:35Z-
dc.date.issued2019-
dc.identifier.citationNature Communications, 2019, v. 10, p. article no. 2952-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/273838-
dc.description.abstractAggregation-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.-
dc.languageeng-
dc.publisherNature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html-
dc.relation.ispartofNature Communications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleNon-aromatic annulene-based aggregation-induced emission system via aromaticity reversal process-
dc.typeArticle-
dc.identifier.emailDu, L: ailleen@hku.hk-
dc.identifier.emailPhillips, DL: phillips@hku.hk-
dc.identifier.authorityPhillips, DL=rp00770-
dc.identifier.doi10.1038/s41467-019-10818-5-
dc.identifier.pmid31273202-
dc.identifier.scopuseid_2-s2.0-85068465395-
dc.identifier.hkuros300970-
dc.identifier.volume10-
dc.identifier.spagearticle no. 2952-
dc.identifier.epagearticle no. 2952-
dc.identifier.isiWOS:000474236100002-
dc.publisher.placeUnited Kingdom-

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