title: Synthesis and nanostructures of several tetrathiafulvalene derivatives having the side chains composed of chiral and hydrogen-bonding groups and their charge-transfer complexes.
abstract: Tetrathiafulvalene (TTF) derivatives TTF-Bor, TTF-2UM and TTF-4UM having chiral urethane groups were prepared. Among them, TTF-2UM, TTF-4UM and their charge-transfer (CT) complexes with F4TCNQ organized the nanowires. The intermolecular hydrogen bonding of the chiral urethane groups and π-stacking of TTF moieties or the formation of CT complexes resulted in a long one-dimensional nanowires. The chiral moieties were responsible for the molecular orientation of TTF cores to give helical structures. Electronic conductivity of the films of nanowires composed of TTF-2UM and TTF-4UM with F4TCNQ were determined to be 8.0 × 10(-2) and 3.2 × 10(-2) S cm(-1), respectively.
authors.affiliation: Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa 992-8510, Japan. ytatewa@yz.yamagata-u.ac.jp okadas@yz.yamagata-u.ac.jp.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Tatewaki
authors.forename: Takanori
authors.initials: T
authors.lastname: Watanabe
authors.forename: Koji
authors.initials: K
authors.lastname: Watanabe
authors.forename: Kohei
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Shuji
authors.initials: S
authors.lastname: Okada