title: A novel rosamine based fluorescent sensor for Ag(+) recognition.
abstract: Rosamine derivative, N-(9-(4-(bis(2-(ethylthio)ethyl)amino)phenyl)-6-(diethylamino)-3H-xanthen-3-ylidene)-N-ethylethanaminium hexafluorophosphate, L, bearing an NS2 group as receptor, was synthesized as a turn on chemosensor for silver ion in ethanol solution. Sensor L exhibited high selectivity toward Ag(+) in comparison to other metal cations (Cd(2+), Cu(2+), Hg(2+), Na(+), Mg(2+), Ni(2+), Pb(2+), Fe(3+), and Zn(2+)). The detection limit for Ag(+) was in 10(-7) level. The binding properties between silver ion and L were further studied by (1)HNMR titration experiments. The chemosensor L can be used as a potential material for silver recognition.
authors.affiliation: Department of Chemistry and Chemical Engineering, ShaanXi XueQian Normal University, Xi'an 710100, China. Electronic address: lianqingli008@163.com.
authors.forename: Lian-Qing
authors.initials: LQ
authors.lastname: Li
authors.affiliation: Binzhou Medical University Hospital, Binzhou 256600, China.
authors.forename: Le-Jun
authors.initials: LJ
authors.lastname: Gao
mesh_terms: D002414:Cations, Monovalent / Q000032:analysis; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D012834:Silver / Q000032:analysis*; D013050:Spectrometry, Fluorescence; D014966:Xanthenes / Q000737:chemistry*
chemical_list: D002414:Cations, Monovalent; D005456:Fluorescent Dyes; C000611291:N-(9-(4-(bis(2-(ethylthio)ethyl)amino)phenyl)-6-(diethylamino)-3H-xanthen-3-ylidene)-N-ethylethanaminium; D014966:Xanthenes; D012834:Silver
keywords: Chemosensor; Fluorescence; Silver ion