High Na+ and K+-induced fluorescence enhancement of a π-conjugated phenylaza-18-crown-6-triazol-substituted coumarin fluoroionophore

被引:41
作者
Ast, Sandra [1 ]
Mueller, Holger [1 ]
Flehr, Roman [1 ]
Klamroth, Tillmann [1 ]
Walz, Bernd [2 ]
Holdt, Hans-Juergen [1 ]
机构
[1] Univ Potsdam, Inst Chem, D-14467 Potsdam, Germany
[2] Univ Potsdam, Inst Biochem & Biol Zoophysiol, D-14467 Potsdam, Germany
关键词
1,3-DIPOLAR CYCLOADDITION; HIGH SELECTIVITY; WURSTERS CROWNS; CHEMOSENSOR; POTASSIUM; SENSORS;
D O I
10.1039/c0cc04370b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The new pi-conjugated 1,2,3-triazol-1,4-diyl fluoroionophore 1 generated via Cu(I) catalyzed [3 + 2] cycloaddition shows high fluorescence enhancement factors (FEF) in the presence of Na+ (FEF = 58) and K+ (FEF = 27) in MeCN and high selectivity towards K+ under simulated physiological conditions (160 mM K+ or Na+, respectively) with a FEF of 2.5 for K+.
引用
收藏
页码:4685 / 4687
页数:3
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