Cholesterol appended bis-1,2,3-triazoles as simple supramolecular gelators for the naked eye detection of Ag+, Cu2+ and Hg2+ ions

被引：43

作者：

Ghosh, Kumaresh ^{[1
]}

Panja, Atanu ^{[1
]}

Panja, Santanu ^{[1
]}

机构：

[1] Univ Kalyani, Dept Chem, Kalyani 741235, W Bengal, India

来源：

NEW JOURNAL OF CHEMISTRY | 2016年 / 40卷 / 04期

关键词：

CLICK CHEMISTRY; 1,3-DIPOLAR CYCLOADDITIONS; SELECTIVE DETECTION; ANION RECOGNITION; TERMINAL ALKYNES; TRIAZOLE; GELS; ORGANOGELS; RECEPTORS; COMPLEXES;

D O I：

10.1039/c5nj02771c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cholesterol coupled bis-1,2,3-triazoles 1-3 have been synthesized and their gelation abilities are examined. Bis triazoles 1-3 form a gel from CHCl3-CH3OH (2 : 1, v/v) mixture solvents. In contrast, compounds 4 and 5, which are devoid of triazoles, are unable to form a gel under similar conditions and thus validate the essential role of triazoles in gelation. While the gel phase of 1 detects Cu2+ ions by showing phase transformation from gel to sol, gels derived from 2 and 3 undergo disintegration in the presence of Ag+, Cu2+ and Hg2+ ions. Such phase changes corroborate the visual sensing of metal ions. Moreover, the fluorescence titration of 3 discriminates Cu2+, Hg2+ and Ag+ ions by exhibiting differential quenching.

引用

页码：3476 / 3483

页数：8

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