title: Highly cooperative ion-pair recognition of potassium cyanide using a heteroditopic ferrocene-based crown ether-trifluoroacetylcarboxanilide receptor.
abstract: A heteroditopic receptor having crown ether and trifluoroacetylcarboxanilide groups selectively recognizes both potassium and cyanide ions in acetonitrile with an association constant of as high as Ka = 1.9 x 10(7) M(-1) through a highly cooperative ion-pair interaction, resulting in two orders of magnitude enhancement in the binding affinity.
authors.affiliation: Department of Chemistry and Center for Integrated Molecular Systems, POSTECH, San 31, Hyoja-dong, Pohang, 790-784, Republic of Korea.
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Miyaji
authors.forename: Dae-Sik
authors.initials: DS
authors.lastname: Kim
authors.forename: Byoung-Yong
authors.initials: BY
authors.lastname: Chang
authors.forename: Eunju
authors.initials: E
authors.lastname: Park
authors.forename: Su-Moon
authors.initials: SM
authors.lastname: Park
authors.forename: Kyo Han
authors.initials: KH
authors.lastname: Ahn
mesh_terms: D000813:Anilides / Q000737:chemistry; D001665:Binding Sites; D002264:Carboxylic Acids / Q000032:analysis*; D043844:Crown Ethers / Q000737:chemistry*; D005296:Ferrous Compounds / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D000075163:Metallocenes; D015394:Molecular Structure; D011190:Potassium Cyanide / Q000032:analysis / Q000737:chemistry*; D014269:Trifluoroacetic Acid / Q000737:chemistry*
chemical_list: D000813:Anilides; D002264:Carboxylic Acids; D043844:Crown Ethers; D005296:Ferrous Compounds; D000075163:Metallocenes; D014269:Trifluoroacetic Acid; D011190:Potassium Cyanide; C004998:ferrocene