Mononuclear Zn(ii)- and Cu(ii)-complexes of a hydroxynaphthalene-derived dipicolylamine: fluorescent sensing behaviours toward pyrophosphate ions
作者:Basab Roy、Alla Sreenivasa Rao、Kyo Han Ahn
DOI:10.1039/c1ob05999h
日期:——
Mononuclear Zn(II)-DPA and Cu(II)-DPA complexes crafted on 2-hydroxy-6-cyanonaphthalene fluorophore selectively recognize PPi over ATP and other anions including inorganic phosphates in aqueous medium, showing turn-on type fluorescence enhancements. Coordination of a hydroxyl group of the fluorophore, directly or in alkoxy form, to the central metal ion is crucial for the sensing processes. Both the complexes elicit a fluorescence increase in a time-dependent fashion.
单核Zn(II)-DPA和Cu(II)-DPA络合物在水相中与2-羟基-6-氰基萘荧光团结合,能够选择性识别PPi而非ATP及其他阴离子,包括无机磷酸盐,表现出开启式荧光增强。荧光团羟基的配位,无论是直接配位还是以烷氧基形式,与中心金属离子的结合对于传感过程至关重要。这两种络合物均表现出随时间变化的荧光增强。