title: Evidence for a ball-shaped cyclen cyclophane: an experimental and first principles study.
abstract: Conformational isomerism of a ball-shaped cyclophane of cyclen was studied using NMR and computational methods with the most notable conformer containing a highly symmetric cyclic benzene tetramer.
authors.affiliation: Supermolecules Group, WPI-Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan. Jonathan.Hill@nims.go.jp
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Hill
authors.forename: Roberto
authors.initials: R
authors.lastname: Scipioni
authors.forename: Mauro
authors.initials: M
authors.lastname: Boero
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Wakayama
authors.forename: Misaho
authors.initials: M
authors.lastname: Akada
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Ariga