title: A benzobisimidazolium-based fluorescent and colorimetric chemosensor for CO2.
abstract: A new sensor for the fluorescent and colorimetric detection of CO(2) is described. The system utilizes fluoride to activate a tetrapropyl benzobisimidazolium salt and operates in the absence of an exogenous base. On the basis of spectroscopic and theoretical analyses, the mode of action of the present system is ascribed to the fluoride-induced formation of an N-heterocyclic carbene intermediate that reacts with CO(2) to form an imidazolium carboxylate.
authors.affiliation: Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea.
authors.forename: Zhiqian
authors.initials: Z
authors.lastname: Guo
authors.forename: Na Ri
authors.initials: NR
authors.lastname: Song
authors.forename: Jong Hun
authors.initials: JH
authors.lastname: Moon
authors.forename: Myounwoo
authors.initials: M
authors.lastname: Kim
authors.forename: Eun Jin
authors.initials: EJ
authors.lastname: Jun
authors.forename: Jiyoung
authors.initials: J
authors.lastname: Choi
authors.forename: Jin Yong
authors.initials: JY
authors.lastname: Lee
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Bielawski
authors.forename: Jonathan L
authors.initials: JL
authors.lastname: Sessler
authors.forename: Juyoung
authors.initials: J
authors.lastname: Yoon
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis*; D003124:Colorimetry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D007093:Imidazoles / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D011789:Quantum Theory
chemical_list: D005456:Fluorescent Dyes; D007093:Imidazoles; D002245:Carbon Dioxide