A binuclear Zn(II)-Zn(II) complex from a 2-hydroxybenzohydrazide-derived Schiff base for selective detection of pyrophosphate.

ABSTRACT: A hydroxybenzohydrazide-based Schiff base ligand was conveniently synthesized. Upon addition of Zn(2+) cations, the ligand exhibited a high tendency to form a binuclear structure with a 2?:?2 ligand-to-zinc ratio, which was accompanied by a large fluorescence turn-on (?em = 507 nm, ?fl? 0.28). The reactivity of the zinc complex was examined using different phosphate anions, which reveals a higher response to acid pyrophosphate anions. Detailed spectroscopic studies show that the pyrophosphate response is based on the ligand displacement mechanism.

SUBMITTER: Wang J 

PROVIDER: S-EPMC4161210 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature