期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 171, 期 -, 页码 984-993出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2012.06.014
关键词
Chemosensor; Fluorescence; Calix[4]arene; Triazolylpyrene; Click; Excimer
资金
- National Science Council (NSC), Taiwan
- Ministry of Education (MOE) Approaching Top University (ATU) Program of the Ministry of Education, Taiwan, Republic of China
Ligand 3, a calix[4]arene with lower-rim proximal triazolylpyrenes, is a ratiometric fluorescent chemosensor for Ag+ with higher sensitivity compared to ligand 5, a calix[4]arene with lower-rim distal triazolylpyrenes, and the conventional fluoroionophore with non-conjugated triazole and pyrene. In a polar protic solvent, the binding ratios for 3 center dot Ag+ was determined to be 1:1 and the association constant was found to be 7.0 x 10(3) M-1. The detection of Ag+ by ligand 3 even works in aqueous methanol solution. (C) 2012 Elsevier B.V. All rights reserved.
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