title: A highly selective and colorimetric naked-eye chemosensor for Cu2+.
abstract: A sample and practical colorimetric naked-eye chemosensor 3-nitro-4-ethylenediamido-nitrobenzene (2) for metal cations was designed and synthesized. It displays high selectivity and sensitivity for Cu2+ by the UV absorption which appeared a new peak at 525 nm and color change from yellow to red by naked-eye in CH3OH/H2O pH 7.6.
authors.affiliation: Department of Chemistry, Changzhi University, Changzhi 046011, PR China.
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Wang
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Fan
authors.forename: Donghong
authors.initials: D
authors.lastname: Li
authors.forename: Liheng
authors.initials: L
authors.lastname: Feng
mesh_terms: D001554:Benzene; D002412:Cations; D003124:Colorimetry / Q000379:methods*; D003300:Copper / Q000737:chemistry*; D004492:Edetic Acid / Q000737:chemistry; D004563:Electrochemistry / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007476:Ionophores; D009682:Magnetic Resonance Spectroscopy; D008670:Metals / Q000737:chemistry; D008956:Models, Chemical; D015394:Molecular Structure; D013053:Spectrophotometry / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D014867:Water / Q000737:chemistry
chemical_list: D002412:Cations; D007476:Ionophores; D008670:Metals; D014867:Water; D003300:Copper; D004492:Edetic Acid; D001554:Benzene