title: Remarkably selective, non-linear allosteric regulation of anion binding by a tetracationic calix[4]pyrrole homodimer.
abstract: A covalently coupled, dimeric tetra-cationic calix[4]pyrrolehomodimer bearing anthracene linkers displayed distinctive cooperativity and fluoride selectivity with positive allosterism. The exclusive and successive binding of fluoride anions is accompanied by large 'turn-on' fluorescence (K2/K1 = 311).
authors.affiliation: Department of Chemistry, Kangwon National University, Chun Cheon 200-701, Korea. chhlee@kangwon.ac.kr.
authors.forename: Indrajit
authors.initials: I
authors.lastname: Saha
authors.forename: Ji Hye
authors.initials: JH
authors.lastname: Lee
authors.forename: Hyonseok
authors.initials: H
authors.lastname: Hwang
authors.forename: Tae Sun
authors.initials: TS
authors.lastname: Kim
authors.forename: Chang-Hee
authors.initials: CH
authors.lastname: Lee
mesh_terms: D000838:Anions / Q000737:chemistry; D000873:Anthracenes / Q000737:chemistry; D001665:Binding Sites; D047250:Calixarenes / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D006860:Hydrogen Bonding; D008968:Molecular Conformation; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D000838:Anions; D000873:Anthracenes; D005456:Fluorescent Dyes; D011166:Porphyrins; C469811:calix(4)pyrrole; D047250:Calixarenes; C034020:anthracene; D005459:Fluorides