期刊
TETRAHEDRON
卷 68, 期 2, 页码 647-653出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.10.106
关键词
Ratiometric fluorescence; Ring annulation; Naphthol-thiazole; Zinc ion
资金
- NRF
- MEST in Korea [NRF-2010-0010070]
- Research Institute of Industrial Technology at Kyungpook National University
Ratiometric fluorescent chemosensors based on the position of ring annulation of the naphthol-thiazole moiety for quantification of zinc ions in aqueous ethanol were synthesized and investigated. It was found that sensor 3 exhibited a remarkably large red shift of 140 nm in emission upon complexation with Zn2+. A TD-B3LYP/6-31G (d,p) calculation was performed to characterize the nature of the fluorescence behavior of sensor 3 upon Zn2+ complexation. The combination of experimental and computational analyses provides a more complete understanding of the molecular level origin of these unique photophysical properties of this type of chemosensor. (C) 2011 Elsevier Ltd. All rights reserved.
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