title: A double hetero[4]helicene composed of two phenothiazines: synthesis, structural properties, and cationic states.
abstract: A novel double hetero[4]helicene consisting of two phenothiazines (1) has been synthesized. The racemization barrier of 1 is high enough for optical separation. We successfully obtained the single crystals of the radical cation salt of 1˙(+), whose torsion angles were decreased compared to those of the neutral state.
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan. sakamaki.daisuke.68u@st.kyoto-u.ac.jp seki@moleng.kyoto-u.ac.jp.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Sakamaki
authors.affiliation: Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Kumano
authors.affiliation: Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Yashima
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan. sakamaki.daisuke.68u@st.kyoto-u.ac.jp seki@moleng.kyoto-u.ac.jp.
authors.forename: Shu
authors.initials: S
authors.lastname: Seki