ヤマモト　ノリフミ   Norifumi Yamamoto   山本　典史    所属   千葉工業大学  工学部 応用化学科    千葉工業大学  工学研究科 工学専攻    千葉工業大学  工学研究科 応用化学専攻    職種   教授
言語種別	日本語
発行・発表の年月	2012
形態種別	学術雑誌
査読	査読あり
標題	Changes in the electric dipole moments and molecular polarizabilities of enol and keto forms of 2-(2' -hydroxyphenyl)benzimidazole along the proton transfer reaction path in a PMMA film
執筆形態	共著
掲載誌名	Chemical Physics Letters
巻・号・頁	539-540,45-49頁
著者・共著者	Kazuki Furukawa, Norifumi Yamamoto, Takakazu Nakabayashi, Nobuhiro Ohta, Kiichi Amimoto, Hiroshi Sekiya
概要	Electroabsorption and electrophotoluminescence spectra were investigated for 2-(2′-hydroxyphenyl)benzimidazole in PMMA, and the results were compared with quantum chemical calculations. The electroabsorption spectrum of the enol form was ascribed to a change in the molecular polarizability following photoexcitation. On the other hand, the electrophotoluminescence spectrum of the keto form was interpreted as a difference in the electric dipole moment between the excited and ground states. The molecular polarizability of the keto form in the S1 state, estimated to be smaller than that in the S0 state, suggests that the geometry of HPBI is substantially twisted in the S1 state.