Ion-responsive fluorescent compounds VI. Coumarin 153 linked to rigid crowns for improvement of selectivity

被引：38

作者：

Leray, I

Habib-Jiwan, JL

Branger, C

Soumillion, JP

Valeur, B

机构：

[1] ENS Cachan, CNRS UMR 8531, Lab Photophys & Photochim Supramol & Macromol, Dept Chim, F-94235 Cachan, France

[2] Univ Catholique Louvain, Lab Photochim & Chim Organ Phys, B-1348 Louvain, Belgium

[3] Conservatoire Natl Arts & Metiers, Lab Chim Gen, F-75003 Paris, France

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2000年 / 135卷 / 2-3期

关键词：

fluorescence; supramolecular photochemistry; sensors; alkali; alkaline earth metal ion;

D O I：

10.1016/S1010-6030(00)00285-9

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：

The photophysical and complexing properties of fluoroionophores consisting of the coumarin C153 linked to dibenzo-16-crown-5 (C153-DBC) and tribenzo-19-crown-6 (C153-TBC) are described in acetonitrile and ethanol. The carbonyl group of the coumarin moiety is in direct interaction with a bound cation. The selectivity of these compounds for a given alkali or alkaline earth metal ion was found to be better than that of previously reported crowned coumarins owing to the rigidity of dibenzo- and tribenzocrowns. In acetonitrile, a very high selectivity for Ca2+ versus Mg2+ has been found. In ethanol, C153-DBC is selective for Na+ and C153-TBC is selective for K+, as expected from the relative size of the crown cavity. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：163 / 169

页数：7

共 19 条

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