title: Phenanthroimidazole-based thiobenzamide as an effective sensor for highly selective detection of mercury(II).
abstract: Based on highly selective and irreversible Hg(2+)-promoted desulfurization reaction, a new and simple phenanthroimidazole-type sensor was prepared and exhibited high selectivity towards Hg(2+) ion over other metal ions, accompanied by transformation of a weakly fluorescent thioamide moiety (colorless) to a highly fluorescent amide one (blue), with a 136-fold increase in fluorescent intensity in aqueous solution with a pH span 2.57-9.12.
authors.affiliation: Laboratory of Pharmaceutical Design and Synthesis, College of Sciences, Northwest A&F University, 712100 Yangling, Shaanxi Province, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Guo
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Yan
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhi
authors.forename: Chun
authors.initials: C
authors.lastname: Yang
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D010616:Phenanthrenes / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013854:Thioamides / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D007477:Ions; D010616:Phenanthrenes; D013854:Thioamides; D014867:Water; C015539:thiobenzamide; D008628:Mercury