title: A benzo-21-crown-7/secondary ammonium salt [c2]daisy chain.
abstract: A [c2]daisy chain has been constructed from a heteroditopic monomer based on the benzo-21-crown-7/secondary ammonium salt recognition motif as shown by single crystal X-ray analysis. It has been further demonstrated that the complexation behavior of this heteroditopic monomer in solution can be controlled by changing the solution pH or adding/removing K(+).
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China.
authors.forename: Bo
authors.initials: B
authors.lastname: Zheng
authors.forename: Mingming
authors.initials: M
authors.lastname: Zhang
authors.forename: Shengyi
authors.initials: S
authors.lastname: Dong
authors.forename: Jiyong
authors.initials: J
authors.lastname: Liu
authors.forename: Feihe
authors.initials: F
authors.lastname: Huang