Design of Na<sup>+</sup>-Selective Fluorescent Probes: A Systematic Study of the Na<sup>+</sup>-Complex Stability and the Na<sup>+</sup>/K<sup>+</sup>Selectivity in Acetonitrile and Water
作者:Thomas Schwarze、Holger Müller、Darya Schmidt、Janine Riemer、Hans-Jürgen Holdt
DOI:10.1002/chem.201605986
日期:2017.5.29
is a tremendous demand for highly Na+-selective fluoroionophores to monitor the top analyte Na+ in life science. Here, we report a systematic route to develop highly Na+/K+ selective fluorescent probes. Thus, we synthesized a set of fluoroionophores 1, 3, 4, 5, 8 and 9 (see Scheme ) to investigate the Na+/K+ selectivity and Na+- complex stability in CH3CN and H2O. These Na+-probes bear different 15-crown-5
对于高度Na +-选择性氟离子载体,以监测生命科学中的顶级分析物Na +有着巨大的需求。在这里,我们报告了开发高度Na + / K +选择性荧光探针的系统途径。因此,我们合成了一组fluoroionophores的1,3,4,5,8和9(参见方案 )调查中的Na + / K +选择性和Na + -在CH复合体稳定性3 CN和H 2 O.这些的Na +探针具有不同的15冠5部分,与Na +的结合力强于K +。该组中的二乙基氨基香豆素取代fluoroionophores的1 - 5,荧光的下面趋势淬火1 > 3 > 2 > 4 > 5在CH 3中观察到CN。因此,在氮杂-15-冠-5部分的柔韧性1 - 4确定氮孤对与芳族环的共轭。结果,1在CH 3 CN中显示出最高的Na +诱导的荧光增强(FE)达到46.5倍,而弱的K +诱导的FE达到3.7。中的Na + -配合物的稳定性1 - 4在CH 3