title: Bisindole anchored mesoporous silica nanoparticles for cyanide sensing in aqueous media.
abstract: For CN(-) recognition, a series of bisindolyl compounds 1-3 were prepared, and their chromodosimetric color changes toward anions were investigated. Nucleophilic addition of the cyanide ion to the meso position of the bisindolyl group gave rise to breaking of the double bond conjugation, thereby inducing spectroscopic changes in the compound. Mesoporous silica nanoparticles 3 also gave color changes from deep orange to yellow in response to the cyanide ion.
authors: Department of Chemistry, Korea University, Seoul 136-701, Korea.
authors: Hyun Jung
authors: HJ
authors: Kim
authors: Hyejin
authors: H
authors: Lee
authors: Ji Ha
authors: JH
authors: Lee
authors: Dong Hoon
authors: DH
authors: Choi
authors: Jong Hwa
authors: JH
authors: Jung
authors: Jong Seung
authors: JS
authors: Kim
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003116:Color; D003486:Cyanides / Q000032:analysis*; D007211:Indoles / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D003486:Cyanides; D007211:Indoles; D014867:Water; D012822:Silicon Dioxide