title: Synthesis of pillar[5]arene dimers and their cooperative binding toward some neutral guests.
abstract: Three pillar[5]arene dimers, bridged by a flexible aliphatic chain (H1) or a relatively rigid phenylene unit (H2 and H3), were synthesized, with the possible synthetic strategies being discussed. The dimers could significantly enhance the binding affinities toward neutral model substrates in comparison with monomeric 1,4-dimethoxypillar[5]arene (H4) through the cooperative binding of two pillar[5]arene moieties. The molecular binding ability and selectivity are discussed from the viewpoints of the size/shape-fit concept and multiple recognition mechanism.
authors.affiliation: Department of Chemistry, Shanghai University, Shanghai 200444, PR China. cjli@shu.edu.cn
authors.forename: Chunju
authors.initials: C
authors.lastname: Li
authors.forename: Kang
authors.initials: K
authors.lastname: Han
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.forename: Haichang
authors.initials: H
authors.lastname: Zhang
authors.forename: Junwei
authors.initials: J
authors.lastname: Ma
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Shu
authors.forename: Zhenxia
authors.initials: Z
authors.lastname: Chen
authors.forename: Linhong
authors.initials: L
authors.lastname: Weng
authors.forename: Xueshun
authors.initials: X
authors.lastname: Jia