title: Selective colorimetric sensing of Co(II) in aqueous media with a spiropyran-amide-dipicolylamine linkage under UV irradiation.
abstract: A spiropyran-amide-dipicolylamine linkage behaves as a colorimetric receptor for selective Co(2+) sensing in aqueous media under UV irradiation. This is promoted by strong coordination of Co(2+) with amide oxygens of the receptors and efficient photoisomerization of the spiropyran moieties.
authors.affiliation: Research Center for Solar Energy Chemistry, and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan. shiraish@cheng.es.osaka-u.ac.jp
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Yoshinao
authors.initials: Y
authors.lastname: Matsunaga
authors.forename: Takayuki
authors.initials: T
authors.lastname: Hirai
mesh_terms: D000577:Amides / Q000737:chemistry*; D000588:Amines / Q000737:chemistry*; D001578:Benzopyrans / Q000737:chemistry*; D003035:Cobalt / Q000032:analysis* / Q000737:chemistry; D003124:Colorimetry / Q000379:methods; D056831:Coordination Complexes / Q000138:chemical synthesis*; D007211:Indoles / Q000737:chemistry*; D008958:Models, Molecular; D009574:Nitro Compounds / Q000737:chemistry*; D055668:Photochemical Processes; D010848:Picolinic Acids / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014466:Ultraviolet Rays; D014867:Water / Q000737:chemistry
chemical_list: C501847:2,2'-dipicolylamine; D000577:Amides; D000588:Amines; D001578:Benzopyrans; D056831:Coordination Complexes; D007211:Indoles; D009574:Nitro Compounds; D010848:Picolinic Acids; C088184:spiropyran; D014867:Water; D003035:Cobalt