title: Selection of conformational states in surface self-assembly for a molecule with eight possible pairs of surface enantiomers.
abstract: Self-assembly of a molecule with many distinct conformational states, resulting in eight possible pairs of surface enantiomers, is investigated on a Au(111) surface under UHV conditions. The complex molecule is equipped with alkyl and carboxyl moieties to promote controlled self-assembly of lamellae structures. From statistical analysis of Scanning Tunnelling Microscopy (STM) data we observe a clear selection of specific conformational states after self-assembly. Using Density Functional Theory (DFT) calculations we rationalise how this selection is correlated to the orientation of the alkyl moieties in mirror-image domains of the lamellae structures, leading to selection of three out of the eight possible enantiomeric pairs.
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk.
authors.forename: A
authors.initials: A
authors.lastname: Nuermaimaiti
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk.
authors.forename: V
authors.initials: V
authors.lastname: S-Falk
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk.
authors.forename: J L
authors.initials: JL
authors.lastname: Cramer
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk and Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark.
authors.forename: K L
authors.initials: KL
authors.lastname: Svane
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk and Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark.
authors.forename: B
authors.initials: B
authors.lastname: Hammer
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk and Center for DNA nanotechnology (CDNA) and Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark. kvg@chem.au.dk.
authors.forename: K V
authors.initials: KV
authors.lastname: Gothelf
authors.affiliation: Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000, Aarhus C, Denmark. trolle@inano.au.dk and Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark.
authors.forename: T R
authors.initials: TR
authors.lastname: Linderoth