A calixarene based fluorescent Sr2+ and Ca2+ probe

被引：22

作者：

Ji, HF ^{[1
]}

Yang, YM

Xu, XH

Brown, G

机构：

[1] Louisiana Tech Univ, Dept Chem, Ruston, LA 71272 USA

[2] Louisiana Tech Univ, Inst Micromfg, Ruston, LA 71272 USA

[3] Oak Ridge Natl Lab, Chem & Analyt Div, Oak Ridge, TN 37831 USA

来源：

ORGANIC & BIOMOLECULAR CHEMISTRY | 2006年 / 4卷 / 05期

关键词：

D O I：

10.1039/b517877k

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A fluorescent probe, PyCalix, which has two pyrene moieties at the lower rim of a calix[4]arene fixed in the cone conformation was synthesized and its complexation behavior with alkali and alkaline earth cations was studied by fluorescence spectrometry. The compound showed intramolecular excimer emission at approximately 480 nm in the fluorescence spectra. Upon complexation with alkaline earth metal cations, a decrease of excimer emission was observed. The decrease of excimer emission was accompanied by an increase of monomer emission of pyrenes at 397 nm. The order of complexation constants of PyCalix with metal ions was Sr2+ similar to Ca2+ > Ba2+ > Mg2+ > K+ > Na+ > Cs+ for all reagents. PyCalix doped polyvinyl chloride (PVC) membrane was fabricated and our results showed that this membrane can be used for selective detection of Sr2+.

引用

页码：770 / 772

页数：3

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