title: Chiral attachment of styrene mediated by surface dimers on Ge100.
abstract: We have investigated the chiral adsorption configurations of styrene on Ge(100) using scanning tunneling microscopy at 300 K. The chemisorbed styrene on a single Ge dimer reduces the symmetry of the molecule, which produces a chiral center, and leads to the (S) or (R) chiral on-top configuration. We have found that the dimeric adsorption of styrene induced by the Ge surface dimer structure forms the enantiomeric and diastereomeric paired end-bridge configurations. We determine the absolute chirality of adsorbed styrene on Ge(100) and demonstrate a novel method for the achiral molecule to produce dimeric enantiomers and diastereomers attached to the semiconductor surface.
authors.affiliation: Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology, Daejon 305-701, Republic of Korea.
authors.forename: Yun Jeong
authors.initials: YJ
authors.lastname: Hwang
authors.forename: Ansoon
authors.initials: A
authors.lastname: Kim
authors.forename: Eunkyung
authors.initials: E
authors.lastname: Hwang
authors.forename: Sehun
authors.initials: S
authors.lastname: Kim
mesh_terms: D000327:Adsorption; D019281:Dimerization; D005857:Germanium / Q000737:chemistry*; D017348:Microscopy, Electron, Scanning Transmission / Q000379:methods; D008968:Molecular Conformation; D013237:Stereoisomerism; D020058:Styrene / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D005857:Germanium; D020058:Styrene