title: A polyanionic dendritic fluorophore for selective detection of Hg2+ in Triton X-100 aqueous media.
abstract: A series of water-soluble fluorescent dendritic compounds composed of phenylene-ethynylene repeating units and anionic carboxylate or cationic ammonium peripheral groups were synthesized. The first generation fluorescent dendrimer containing nine phenylene-ethynylene units and six carboxylate peripheral groups exhibited a highly selective fluorescence quenching by Hg(2+) ions. The Stern-Volmer constant (K(sv)) was 33,700 M(-1) in aqueous media in the presence of Triton X-100 surfactant.
authors.affiliation: Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Nakorn
authors.initials: N
authors.lastname: Niamnont
authors.forename: Warathip
authors.initials: W
authors.lastname: Siripornnoppakhun
authors.forename: Paitoon
authors.initials: P
authors.lastname: Rashatasakhon
authors.forename: Mongkol
authors.initials: M
authors.lastname: Sukwattanasinitt