New water-soluble fluorescent sensors based on calix[4]arene biscrown-6 for selective detection of cesium

被引：16

作者：

Xuan Qui Pham ^{[1
]}

Jonusauskaite, Laura ^{[1
]}

Depauw, A. ^{[1
]}

Kumar, Naresh ^{[1
]}

Lefevre, J. P. ^{[1
,2
]}

Perrier, Aurelie ^{[3
,4
]}

Minh-Huong Ha-Thi ^{[1
,5
]}

Leray, Isabelle ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, ENS Paris Saclay, PPSM, 61 Ave President Wilson, F-94235 Cachan, France

[2] CNAM, 292 Rue St Martin, F-75003 Paris, France

[3] Univ Paris Diderot, Sorbonne Paris Cite, F-75205 Paris 13, France

[4] PSL Res Univ, Chim Paris Tech, CNRS, IRCP, F-75005 Paris, France

[5] Univ Paris Saclay, Univ Paris Sud, CNRS, ISMO, F-91405 Orsay, France

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2018年 / 364卷

关键词：

Fluorescent sensors; DFT; Calixarene; Cesium; 1,3-ALTERNATE; RECOGNITION; PHOSPHONATE; ETHER); CS+;

D O I：

10.1016/j.jphotochem.2018.06.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two new fluorescent chemosensors based on calix[4]arene bis(crown-6) bearing coumarin units have been synthesized for the detection of cesium ions in water. The photophysical and complexing properties of these sensors with cesium were investigated using absorption and fluorescence spectroscopies as well as DFT calculations. The coordination of Cs+ by the these ligands induces a better charge transfer between the donor and acceptor groups of the coumarin, resulting in a bathochromic shift in absorption spectra and an enhancement of emission spectra. Both the ligands display an excellent selectivity for Cs+ over other potentially interfering cations such as Na+, Li+, K+, Mg2+, Ca2+ and Sr2+ ions.

引用

页码：355 / 362

页数：8

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