title: Guest-induced unidirectional dual rotary and twisting motions of a spiroborate-based double-stranded helicate containing a bisporphyrin unit.
authors.affiliation: Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Hiroki
authors.initials: H
authors.lastname: Iida
authors.forename: Eiji
authors.initials: E
authors.lastname: Yashima