title: Pseudocryptand-type [2]pseudorotaxanes based on bis(meta-phenylene)-32-crown-10 derivatives and paraquats with remarkably improved association constants.
abstract: The first dual component pseudocryptand-type [2]pseudorotaxanes were designed and prepared via the self-assembly of synthetically easily accessible bis(meta-phenylene)-32-crown-10 pyridyl, quinolyl, and naphthyridyl derivatives with paraquat. The formation of the pseudocryptand structures in the complexes remarkably improved the association constant by forming the third pseudobridge via H-bonding with the guest and π-stacking of the heterocyclic units.
authors.affiliation: Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
authors.forename: Zhenbin
authors.initials: Z
authors.lastname: Niu
authors.forename: Carla
authors.initials: C
authors.lastname: Slebodnick
authors.forename: Daniel
authors.initials: D
authors.lastname: Schoonover
authors.forename: Hugo
authors.initials: H
authors.lastname: Azurmendi
authors.forename: Kim
authors.initials: K
authors.lastname: Harich
authors.forename: Harry W
authors.initials: HW
authors.lastname: Gibson