title: The special optical properties and application of the heterocyclic compound diethyl 6-anilino-5H-2,3-dithia-5,7-diazacyclopenta(cd)indene-1,4-dicarboxylate.
abstract: The heterocyclic compound diethyl 6-anilino-5H-2,3-dithia-5,7-diazacyclopenta(cd)indene-1,4-dicarboxylate (D1) was found to form highly emissive aggregates in polar solvents, and the aggregate emission can be tuned by the simple addition of water to a dimethylsulfoxide solution. A theoretical study based on Density functional theory (DFT) calculations, shows that intermolecular interactions of D1 with solvent may be potential factors in the fluorescence change. In addition, the phenyl ring in D1 plays an important role because of its response to solvent. In the non-aggregated state, deprotonation of the N-H of D1 can proceed easily on the addition of base, and the deprotonated compound might interact with Ag(+), resulting in a significant change in color and fluorescence quenching, which make it a potential chemosensor for the selective detection of trace amounts of Ag(+).
authors: College of Chemistry and Life Science, Three Gorges University, Yichang, 443002, People's Republic of China.
authors: Liangrong
authors: L
authors: Zhao
authors: Mingguo
authors: M
authors: Liu
authors: Mingxun
authors: M
authors: Yan
authors: Yayun
authors: Y
authors: Zhu
authors: Liangjun
authors: L
authors: Pan
authors: Changying
authors: C
authors: Yang
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000737:chemistry*; D006860:Hydrogen Bonding; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002264:Carboxylic Acids; D006571:Heterocyclic Compounds
keywords: Ag+; aggregation; deprotonation; diethyl 6-anilino-5H-2,3-dithia-5,7-diazacyclopenta(cd)indene-1,4-dicarboxylate; hydrogen bond