title: 2D self-assembly of oligo(p-phenylene vinylene) derivatives: from dimers to chiral rosettes.
abstract: Enantiomerically pure oligo(p-phenylene vinylene) diaminotriazine derivatives and a short structurally related achiral diaminotriazine derivative, all having a rigid backbone in common, are studied to self-assemble at the solution-graphite interface by scanning tunneling microscopy. As a function of the length of the backbone, different two-dimensional motifs are formed (dimers and rosettes) that are rationalized in terms of the balance between different intermolecular interactions, in this case, intermolecular hydrogen bonding and the packing requirements of the alkyl chains on a graphite surface. In addition, the effect of molecular chirality on monolayer chirality is investigated, revealing molecular size-dependent expressions of the monolayer chirality.
authors.affiliation: Department of Chemistry, Laboratory of Photochemistry and Spectroscopy, Katholieke Universiteit Leuven, Celestijnenlaan 200-F, 3001 Leuven, Belgium.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Miura
authors.forename: Pascal
authors.initials: P
authors.lastname: Jonkheijm
authors.forename: Steven
authors.initials: S
authors.lastname: De Feyter
authors.forename: Albertus P H J
authors.initials: AP
authors.lastname: Schenning
authors.forename: E W
authors.initials: EW
authors.lastname: Meijer
authors.forename: Frans C
authors.initials: FC
authors.lastname: De Schryver
mesh_terms: D046911:Macromolecular Substances / Q000138:chemical synthesis* / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D011145:Polyvinyls / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D046911:Macromolecular Substances; D011145:Polyvinyls; C470024:poly(4-phenylenevinylene)