title: Fluoride-triggered ESPT in the binding with sal(oph)en.
abstract: In this paper, anion binding and sensing affinity of the simple and easy-to-make salen, a typical class of ligand used comprehensively in metal coordination, was investigated. Results indicated that salophen was both a colorimetric and fluorescent selective chemosensor for fluoride ion, which operated by the anion-induced conformational changes and subsequently excited-state intramolecular proton transfer (ESPT) process. The F(-)-induced quick response, as well as noticeable optical changes, suggested that anion-sensing mechanism maybe help to design and to synthesize the new preferential selective probes for F(-).
authors.affiliation: Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry, Tianjin Normal University, Tianjin 300387, China. hxxylk@mail.tjnu.edu.cn
authors.forename: Kai
authors.initials: K
authors.lastname: Liu
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Huo
authors.forename: Bolin
authors.initials: B
authors.lastname: Zhu
authors.forename: Ran
authors.initials: R
authors.lastname: Huo