title: A near-infrared fluorescence turn-on sensor for sulfide anions.
abstract: The first NIR fluorescent sensor for sulfide anions was constructed based on the displacement approach. The sensing ensemble is composed of a cyanine dye, a piperazine linker, an 8-aminoquinoline ligand, and copper. The favorable attributes of the sensor include a large NIR fluorescence turn-on signal in aqueous ethanol, high sensitivity, and high selectivity. The transition-metal-based displacement strategy may open an avenue for development of NIR fluorescent sensors for a wide variety of anion targets.
authors.affiliation: State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Cao
authors.forename: Weiying
authors.initials: W
authors.lastname: Lin
authors.forename: Longwei
authors.initials: L
authors.lastname: He
mesh_terms: D000634:Aminoquinolines / Q000737:chemistry; D000838:Anions / Q000032:analysis; D003300:Copper / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D008024:Ligands; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013237:Stereoisomerism; D013440:Sulfides / Q000032:analysis*
chemical_list: D000634:Aminoquinolines; D000838:Anions; D005456:Fluorescent Dyes; D008024:Ligands; D009942:Organometallic Compounds; D013440:Sulfides; D003300:Copper; C080436:8-aminoquinoline