期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 265, 期 -, 页码 747-755出版社
ELSEVIER
DOI: 10.1016/j.molliq.2018.07.035
关键词
Cyanopyridone; Aggregation induced emission; UV-vis absorption; Fluorescence emission; Epi-fluorescence microscopy; Field emission scanning electron microscope
资金
- Science & Engineering Research Board (SERB) under Young Scientists Scheme, Govt. of India, New Delhi [YSS/2014/000835]
- Nanomission Project [SR/NM/NS-20/2014]
Nowadays, fluorescent organic compounds have attracted much research interest due to their academic significance and applications. The present article deals with the fluorescence behaviors of conjugated cyanopyridone based compounds (CP1-5) possessing various donor/acceptor moieties. These compounds showed aggregation-induced emission (ALE) properties in their THF/H2O mixtures due to the restriction of intramolecular rotation and exhibited a blue emission behavior in their aggregated state. During the AIE study, compound (CP-1) showed a red shift in the emission profile and rest of the compounds exhibited a blue shift in their emission profile. Further, field emission scanning electron microscope (FESEM) and Epi-fluorescence microscopic studies showed that the stronger emission of these compounds is mainly due to the formation of large-sized aggregates in the THF/water mixture than the pure THF. (C) 2018 Elsevier B.V. All rights reserved.
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