標題: Triazole-modified calix[4]crown as a novel fluorescent on-off switchable chemosensor
作者: Chang, Kai-Chi
Su, In-Hao
Senthilvelan, Annamalai
Chung, Wen-Sheng
應用化學系
Department of Applied Chemistry
公開日期: 16-Aug-2007
摘要: A novel fluorescent on-off switchable chemosensor 1 with two different types of cationic binding sites is synthesized, which is composed of a triazole-modified calix[4]crown in the 1,3-alternate conformation. Among 15 metal ions examined, the fluorescence of 1 was strongly quenched by Hg2+, Cu2+, Cr3+, and Pb2+; however, the revival of emission from the strongly quenched 1 center dot Pb2+ complex was achievable by the addition of K+, Ba2+, or Zn2+ ions. Thus, metal ion exchange can trigger an on-off switchable fluorescent chemosensor.
URI: http://dx.doi.org/10.1021/ol071337+
http://hdl.handle.net/11536/10438
ISSN: 1523-7060
DOI: 10.1021/ol071337+
期刊: ORGANIC LETTERS
Volume: 9
Issue: 17
起始頁: 3363
結束頁: 3366
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