Triazole- and azo-coupled calix[4]arene as a highly sensitive chromogenic sensor for Ca2+ and Pb2+ ions

被引：112

作者：

Chang, Kai-Chi

Su, In-Hao

Lee, Gene-Hsiang

Chung, Wen-Sheng ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30050, Taiwan

[2] Natl Taiwan Univ, Instrumentat Ctr, Taipei 106, Taiwan

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 41期

关键词：

D O I：

10.1016/j.tetlet.2007.08.045

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

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.

引用

页码：7274 / 7278

页数：5

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