title: Probing and evaluating anion-π interaction in meso-dinitrophenyl functionalized calix[4]pyrrole isomers.
abstract: We investigate anion-π binding modes in a cis-isomer of 3,5-dinitrophenyl-substituted calix[4]pyrrole with various anions via X-ray crystallographic analyses and compare its binding affinities with those of the corresponding trans-isomer. Sandwich-type anion-π interactions prove to not only enhancing anion binding abilities but also altering the anion-binding selectivity of the calix[4]pyrrole framework.
authors.affiliation: Department of Chemistry, Sookmyung Womens's University, Cheongpa-ro 47-gil, Yongsan-gu, Seoul, South Korea. jspark@sookmyung.ac.kr.
authors.forename: Ajeong
authors.initials: A
authors.lastname: Kim
authors.forename: Rashid
authors.initials: R
authors.lastname: Ali
authors.forename: Seok Ho
authors.initials: SH
authors.lastname: Park
authors.forename: Yong-Hoon
authors.initials: YH
authors.lastname: Kim
authors.forename: Jung Su
authors.initials: JS
authors.lastname: Park