title: Formation of chiral environments by a mechanical induced vortex flow.
abstract: A chiral molecule absorbs preferentially right- or left-handed circularly polarized light in a circular dichroism (CD) measurement. Usually, the chirality of individual molecules is regarded as the origin of the CD signals. However, recently, several reports have suggested that the vortex flow of a solution of an achiral molecule gives rise to a CD signal, which is dependent on the stirring direction. This article introduces types of molecular architecture and material designs that show stir-induced chirality. We also discuss the effects of the molecular structure and alignment in vortex flows on this phenomena, reviewing the related issues.
authors.affiliation: Department of Pure and Applied Chemistry, 2641 Yamazaki, Noda-hi, Chiba, Japan. okano@applc.keio.ac.jp
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Okano
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamashita
mesh_terms: D002942:Circular Dichroism; D004396:Coloring Agents / Q000737:chemistry; D055595:Mechanical Phenomena; D008968:Molecular Conformation; D011166:Porphyrins / Q000737:chemistry; D012996:Solutions / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D004396:Coloring Agents; D011166:Porphyrins; D012996:Solutions