Optical determination of thallium(I) and cesium(I) with a fluorogenic calix[4]arenebis(crown-6 ether) containing one pendent dansyl group

被引：33

作者：

Roper, Ebony D.

Talanov, Vladimir S.

Gorbunova, Maryna G.

Bartsch, Richard A.

Talanova, Galina G.

机构：

[1] Howard Univ, Dept Chem, Washington, DC 20059 USA

[2] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

[3] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

来源：

ANALYTICAL CHEMISTRY | 2007年 / 79卷 / 05期

关键词：

D O I：

10.1021/ac061387c

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A fluorogenic derivative of 1,3-alternate calix[4]arenebis(crown-6) (1) containing a dansyl group in the proton-ionizable side arm has been employed in selective sensing of Tl+ and Cs+ at low concentration levels in MeCN-H2O (1:1) mixed solvent. Optical recognition of these two metal cations by 1 occurs in contrasting modes. On the basis of the results of fluorescence, matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS), and H-1 NMR studies, Tl+ and Cs+ react with 1 via formation of 1:1 complexes that differ in coordination arrangement around the metal ion.

引用

页码：1983 / 1989

页数：7

共 18 条

[1]

ArnaudNeu F, 1996, NEW J CHEM, V20, P453

[2]

Asfari Z, 1996, NEW J CHEM, V20, P1183

[3] Synthesis, complexation and photophysics of 1,3-alternate calix[4]arene-crowns-6 bearing fluorophoric units on the bridge [J].