New ON-OFF type Ca2+-selective fluoroionophore having boron-dipyrromethene fluorophores

被引：53
作者：
Cha, NR [1 ]
Moon, SY [1 ]
Chang, SK [1 ]
机构：
[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea
来源：
TETRAHEDRON LETTERS | 2003年 / 44卷 / 45期
基金：
新加坡国家研究基金会;
关键词：
calix[4]arene-crown ether; fluoroionophore; boron-dipyrromethene; Ca2+-selectivity;
D O I：
10.1016/j.tetlet.2003.09.060
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A new fluorogenic ionophore has been prepared by conjugating calix[4]-crown-5 ether with boron-dipyrromethene fluorophore. The ionophore exhibited a pronounced selective ON-OFF type response toward Ca2+ ions over other physiologically important metal ions of Na+, K+, and Mg2+. The interaction with Ca2+ ions resulted in very efficient quenching of fluorescence at 507 nm excited by relatively long wavelength irradiation at 480 rim. The selectivity ratios toward Ca2+ ions over other tested physiologically important metal ions were larger than 180 in aqueous 95% MeOH solution. (C) 2003 Elsevier Ltd. All rights reserved.
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收藏
页码：8265 / 8268
页数：4
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