Sum-frequency vibrational spectroscopy of a helically structured conjugated polymer.
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.
Oh-e
Masahito
M
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
Yokoyama
Hiroshi
H
Yorozuya
Shinichi
S
Akagi
Kazuo
K
Belkin
M A
MA
Shen
Y R
YR