High Na+ and K+-induced fluorescence enhancement of a π-conjugated phenylaza-18-crown-6-triazol-substituted coumarin fluoroionophore
作者:Sandra Ast、Holger Müller、Roman Flehr、Tillmann Klamroth、Bernd Walz、Hans-Jürgen Holdt
DOI:10.1039/c0cc04370b
日期:——
The new Ï-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+.
通过铜(I)催化[3 + 2]环加成生成的新型Ï-共轭 1,2,3-三唑-1,4-二基荧光团 1 在 MeCN 中的 Na+(FEF = 58)和 K+(FEF = 27)存在下显示出很高的荧光增强因子(FEF),并且在模拟生理条件(分别为 160 mM K+ 或 Na+)下对 K+ 具有很高的选择性,对 K+ 的 FEF 为 2.5。