title: Sum-frequency vibrational spectroscopy of a helically structured conjugated polymer.
abstract: Sum-frequency vibrational spectroscopy was used as a novel technique to probe the molecular chirality of thin polymer films. Chiral vibrational spectra of poly(bithienylene-phenylene) were obtained, and the two enantiomers were distinguished by an interference method. Vibration-electronic double resonance was responsible for the observation of unusually strong chiral spectra of the phenylene vibration modes.
authors.affiliation: Yokoyama Nano-structured Liquid Crystal Project, ERATO, and Liquid Crystal Nano-system, SORST, Japan Science & Technology Agency, 5-9-9 Tokodai, Tsukuba, Ibaraki 300-2635 Japan. oh-e@nanolc.jst.go.jp
authors.forename: Masahito
authors.initials: M
authors.lastname: Oh-e
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yokoyama
authors.forename: Shinichi
authors.initials: S
authors.lastname: Yorozuya
authors.forename: Kazuo
authors.initials: K
authors.lastname: Akagi
authors.forename: M A
authors.initials: MA
authors.lastname: Belkin
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen