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

Chemical Communications Pub Date: 2011-03-17 DOI: 10.1039/C0CC04370B

Abstract

The new π-conjugated 1,2,3-triazol-1,4-diyl fluoroionophore 1 generated viaCu(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+.

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