Ratiometric determination of Hg2+ ions based on simple molecular motifs of pyrene and dioxaoctanediamide

被引：128

作者：

Kim, Jun Soo ^{[1
]}

Choi, Myung Gil

Song, Ki Cheol

No, Kyoung Tai

Ahn, Sangdoo

Chang, Suk-Kyu

机构：

[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea

[2] Yonsei Univ, Dept Biotechnol, Seoul 120749, South Korea

来源：

ORGANIC LETTERS | 2007年 / 9卷 / 06期

关键词：

D O I：

10.1021/ol070143r

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new podand-type dioxaoctanediamide-based chemosensor having two pyrene moieties was prepared, and its fluoroionophoric behaviors toward transition-metal ions were investigated. Pyrene-appended dioxaoctanediamide 1 showed a selective fluorescence quenching toward Hg2+ ions over other transition-metal ions in an aqueous methanol solution. Unique responses in pyrene monomer and excimer emissions allowed selective ratiometric determination of Hg2+ ions in aqueous environments, and the detection limit was found to be 1.6 x 10(-6) M.

引用

收藏

页码：1129 / 1132

页数：4

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