title: A simple and efficient colorimetric anion receptor for H(2)PO(4)(-).
abstract: A novel and neutral anion sensor bearing a urea group as binding sites and 2,4-di nitrophenylhydrazine unit as a molecular architecture and a chromophore was synthesized and the visible color changes, the UV-vis and (1)H NMR spectral responses toward anions were assessed.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Shao
authors.forename: Hai
authors.initials: H
authors.lastname: Lin
authors.forename: Hua-Kuan
authors.initials: HK
authors.lastname: Lin
mesh_terms: D000838:Anions; D003124:Colorimetry; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D010659:Phenylhydrazines / Q000138:chemical synthesis* / Q000737:chemistry; D010756:Phosphoric Acids / Q000138:chemical synthesis / Q000737:chemistry*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000838:Anions; D010659:Phenylhydrazines; D010756:Phosphoric Acids; D012996:Solutions; C004787:2,4-dinitrophenylhydrazine; C030242:phosphoric acid