title: A N-(2-hydroxyethyl)piperazine dangled 2,5-diphenyl-1,3,4-oxadiazole-based fluorescent sensor for selective relay recognition of Cu2+and sulfide in water.
abstract: A new 2,5-diphenyl-1,3,4-oxadiazole-based derivative (L) was synthesized and applied as a highly selective and sensitive fluorescent sensor for relay recognition of Cu2+and S2-in water (Tris-HCl 10 mM, pH = 7.0) solution. L exhibits an excellent selectivity to Cu2+over other examined metal ions with a prominent fluorescence 'turn-off' at 392 nm. L interacts with Cu2+through a 1:2 binding stoichiometry with a detection limit of 4.8 × 10-7M. The on-site formed L-2Cu2+complex exhibits excellent selectivity to S2-with a fluorescence 'off-on' response via a Cu2+displacement approach. Copyright © 2016 John Wiley & Sons, Ltd.
authors.affiliation: Department of Chemistry, Bohai University, Jinzhou, 121013, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Tang
authors.affiliation: Department of Chemistry, Bohai University, Jinzhou, 121013, China.
authors.forename: Zhuxuan
authors.initials: Z
authors.lastname: Zheng
authors.affiliation: Department of Chemistry, Bohai University, Jinzhou, 121013, China.
authors.forename: Yanjiang
authors.initials: Y
authors.lastname: Bian
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003300:Copper / Q000032:analysis*; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D009682:Magnetic Resonance Spectroscopy; D010069:Oxadiazoles / Q000737:chemistry*; D010879:Piperazines / Q000737:chemistry*; D013440:Sulfides / Q000032:analysis*; D014867:Water / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D010069:Oxadiazoles; D010879:Piperazines; D013440:Sulfides; D014867:Water; D003300:Copper
keywords: Cu2+ detection; fluorescence; relay recognition; sulfide recognition