title: Reaction-based fluorescent sensing of Au(I)/Au(III) species: mechanistic implications on vinylgold intermediates.
abstract: A rhodamine-derived alkyne shows turn-on fluorescence change only toward Au(I)/Au(III) species among various other metal species examined. A formyloxazole compound is formed as the major product in aqueous media, presumably via a vinylgold intermediate, which casts new mechanistic implications on vinylgold intermediates.
authors.affiliation: Department of Chemistry and Center for Electro-Photo Behaviors in Advanced Molecular Systems, POSTECH, San 31, Hyoja-dong, Pohang, 790-784 Republic of Korea.
authors.forename: Olga A
authors.initials: OA
authors.lastname: Egorova
authors.forename: Hyewon
authors.initials: H
authors.lastname: Seo
authors.forename: Amrita
authors.initials: A
authors.lastname: Chatterjee
authors.forename: Kyo Han
authors.initials: KH
authors.lastname: Ahn
mesh_terms: D000480:Alkynes / Q000737:chemistry; D002384:Catalysis; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D006046:Gold / Q000032:analysis* / Q000737:chemistry; D015394:Molecular Structure; D050607:Organogold Compounds / Q000737:chemistry*; D012235:Rhodamines / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D000480:Alkynes; D005456:Fluorescent Dyes; D050607:Organogold Compounds; D012235:Rhodamines; D006046:Gold