title: Photo-induced chirality switching in a cobaloxime complex crystal.
abstract: Switching of molecular chirality under photo-irradiation was studied in a cobaloxime complex crystal. Excitation of the d-d transition of the Co(III) ion appeared to be much more effective in inducing the chirality change than excitation of the ligand-metal charge transfer band although the latter is more effective in breaking the Co-C bond that initiates the chirality switching. The chirality change versus irradiation time showed a steplike behavior suggesting that chirality switching of molecules occurred in correlation with their nearest neighbors.
authors.affiliation: Department of Materials Science, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan. kikeda@chem.titech.ac.jp
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Ikeda
authors.forename: Weitao
authors.initials: W
authors.lastname: Liu
authors.forename: Yuen Ron
authors.initials: YR
authors.lastname: Shen
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Uekusa
authors.forename: Yuji
authors.initials: Y
authors.lastname: Ohashi
authors.forename: Shin-ya
authors.initials: SY
authors.lastname: Koshihara
mesh_terms: D002412:Cations; D002942:Circular Dichroism; D003035:Cobalt / Q000737:chemistry*; D003461:Crystallography; D008024:Ligands; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010091:Oximes / Q000737:chemistry*; D010777:Photochemistry; D013237:Stereoisomerism
chemical_list: D002412:Cations; D008024:Ligands; D009942:Organometallic Compounds; D010091:Oximes; D003035:Cobalt