title: Chiral cyclotrisiloxanes.
abstract: We have synthesized and separated the enantiomer pair of chiral cyclotrisiloxanes for the first time. Three-blade propeller-like alignment of three phenyl groups in tri(2-butyl)triphenylcyclotrisiloxane induced a positive Cotton effect with (R)-2-butyl group, and a negative effect with (S)-2-butyl substituent.
authors.affiliation: Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Kiryu, Japan. polysilane@gmail.com
authors.forename: Ryoji
authors.initials: R
authors.lastname: Tanaka
authors.forename: Susumu
authors.initials: S
authors.lastname: Kowase
authors.forename: Masafumi
authors.initials: M
authors.lastname: Unno