title: 4-Salicylideneamino-3-methyl-1,2,4-triazole-5-thione as a sensor for aniline recognition.
abstract: Tridentate triazole based Schiff base 4-salicylideneamino-3-methyl-1,2,4-triazole-5-thione has been found to selectively detect toxic aromatic amines such as aniline and benzene-1,4-diamine by simple titration techniques like UV-visible, fluorescence spectral studies (PL) and 1H NMR titrations. The Schiff base receptor utilizes, thione sulfur, NH-thione and the phenolic hydroxyl group to form hydrogen bonded adduct of aniline and benzene-1,4-diamine with high binding affinity, followed by a slow removal of the corresponding hydrogens thus providing a promising candidate and an unique receptor for toxic aromatic amines.
authors.affiliation: Department of Chemistry, National Institute of Technology - Tiruchirappalli, Tiruchirappalli 620015, Tamilnadu, India.
authors.forename: M Saravana
authors.initials: MS
authors.lastname: Kumar
authors.forename: R
authors.initials: R
authors.lastname: Tamilarasan
authors.forename: A
authors.initials: A
authors.lastname: Sreekanth
mesh_terms: D000814:Aniline Compounds / Q000032:analysis*; D002273:Carcinogens / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D010655:Phenylenediamines / Q000032:analysis; D012545:Schiff Bases / Q000737:chemistry; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013871:Thiones / Q000737:chemistry*; D017186:Titrimetry / Q000379:methods; D014230:Triazoles / Q000737:chemistry*
chemical_list: D000814:Aniline Compounds; D002273:Carcinogens; D010655:Phenylenediamines; D012545:Schiff Bases; D013871:Thiones; D014230:Triazoles; C045575:1,2,4-triazole; C023650:aniline; C029728:4-phenylenediamine