Selective sensing of sulfate in aqueous solution using a fluorescent bis(cyclopeptide)

被引：50

作者：

Reyheller, Carsten ^{[1
]}

Kubik, Stefan ^{[1
]}

机构：

[1] Tech Univ Kaiserslautern, Fachbereich Chem, D-67663 Kaiserslautern, Germany

来源：

ORGANIC LETTERS | 2007年 / 9卷 / 25期

关键词：

D O I：

10.1021/ol702386e

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Fluorescence of a bis(cyclopeptide) in which two cyclohexapeptide moieties with alternating L-proline and 6-aminopicolinic acid subunits are attached to a 4,4 '-bis(dimethylamino)biphenyl linker is quenched in 1:1 (v/v) water/methanol in the presence of sulfate. Of eight other anions tested, none produced a similar effect. This bis(cyclopeptide) allows the qualitative and quantitative detection of sulfate even in the presence of an excess of chloride anions. Calculations provided insight into the causes of fluorescence quenching and anion selectivity.

引用

页码：5271 / 5274

页数：4

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