title: 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 (λem = 507 nm, ϕfl≈ 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.
authors.affiliation: Department of Chemistry, The University of Akron, Akron, Ohio 44325, USA.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Xiumin
authors.initials: X
authors.lastname: Liu
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Panzner
authors.forename: Chrys
authors.initials: C
authors.lastname: Wesdemiotis
authors.forename: Yi
authors.initials: Y
authors.lastname: Pang
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D011756:Diphosphates / Q000737:chemistry*; D006834:Hydrazines / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: C571816:2-hydroxybenzohydrazide; D056831:Coordination Complexes; D011756:Diphosphates; D006834:Hydrazines; D017967:Zinc Compounds