標題: Triazole- and azo-coupled calix[4]arene as a highly sensitive chromogenic sensor for Ca2+ and Pb2+ ions
作者: Chang, Kai-Chi
Su, In-Hao
Lee, Gene-Hsiang
Chung, Wen-Sheng
應用化學系
Department of Applied Chemistry
公開日期: 8-Oct-2007
摘要: A novel chromogenic calix[4]arene 3, which has within a molecule both the triazoles and the hydroxyl azophenols as the metal-binding sites and the azophenol moiety as a coloration sites was designed and synthesized. Calix[4]arene 3 is highly sensitive to Ca2+ and Pb+ ions, which can be detected by the naked eye. Furthermore, the association constants for the 1:1 complexes of 3 center dot Ca2+ and 3 center dot Pb2+ were determined to be 7.06 x 104 M-1 and 8.57 x 103 M-1, respectively. (c) 2007 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.tetlet.2007.08.045
http://hdl.handle.net/11536/10242
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2007.08.045
期刊: TETRAHEDRON LETTERS
Volume: 48
Issue: 41
起始頁: 7274
結束頁: 7278
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