title: Self-assembly of monodispersed, chiral nanoclusters of cysteine on the Au(110)-(1 x 2) surface.
abstract: The self-assembly of monodispersed supramolecular nanoclusters was observed by scanning tunneling microscopy (STM). The clusters form from the naturally occurring amino acid cysteine by vapor deposition onto the Au(110)-(1 x 2) surface under ultrahigh vacuum conditions. Enantiomerically pure l- and d-cysteine yields clusters with mirror-image STM signatures. Racemic ld-cysteine segregates into homochiral clusters, evidencing specific intermolecular interactions during the self-assembly process.
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Center for Atomic-scale Materials Physics, and Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark.
authors.forename: Angelika
authors.initials: A
authors.lastname: Kühnle
authors.forename: Trolle R
authors.initials: TR
authors.lastname: Linderoth
authors.forename: Flemming
authors.initials: F
authors.lastname: Besenbacher
mesh_terms: D003545:Cysteine / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D013237:Stereoisomerism; D013499:Surface Properties; D014618:Vacuum
chemical_list: D006046:Gold; D003545:Cysteine