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Aggregation-Induced Emission and Aggregation-Promoted Photo-oxidation in Thiophene-Substituted Tetraphenylethylene Derivative
Zhu, Linna1; Wang, Rui1; Tan, Luxi2; Liang, Xianfeng3; Zhong, Cheng4; Wu, Fei1
2016-10-01
摘要Aggregation-induced emission combined with aggregation-promoted photo-oxidation has been reported only in two works quite recently. In fact, this phenomenon is not commonly observed for AIE-active molecules. In this work, a new tetraphenylethylene derivative ( TPE-4T) with aggregation-induced emission ( AIE) and aggregation-promoted photo-oxidation was synthesized and investigated. The pristine TPE-4T film exhibits strong bluish-green emission, which turns to quite weak yellow emission after UV irradiation. Interestingly, after solvent treatment, the weakly fluorescent intermediate will become bright-yellow emitting. Moreover, the morphology of the TPE-4T film could be regulated by UV irradiation. The wettability of the TPE-4T microcrystalline surface is drastically changed from hydrophobic to hydrophilic. This work contributes a new member to the aggregation induced photo-oxidation family and enriches the photooxidation study of tetraphenylethylene derivatives.
关键词aggregation induced emission aggregation promoted photocyclization fluorescence tetraphenylethylene thiophene
DOI10.1002/asia.201601003
发表期刊CHEMISTRY-AN ASIAN JOURNAL
ISSN1861-4728
卷号11期号:20页码:2932-2937
通讯作者Zhu, LN ; Wu, F (reprint author), Southwest Univ, Chongqing Key Lab Adv Mat & Technol Clean Energy, Chongqing 400715, Peoples R China. ; Zhong, C (reprint author), Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China.
收录类别SCI
WOS记录号WOS:000387464300019
语种英语