title: Extended one-dimensional supramolecular assembly on a stepped surface.
abstract: 2,6-naphthalene-dicarboxylic acid was adsorbed on a Ag110 surface with an average terrace width of only some tens of a nm. Scanning tunneling microscopy shows that the adsorbates self-assemble into one-dimensional mesoscale length chains. These extend over several hundred nanometers and thus the structure exhibits an unprecedented tolerance to monatomic surface steps. Density functional theory and x-ray photoelectron spectroscopy explain the behavior by a strong intermolecular hydrogen bond plus a distinct template-mediated directionality and a high degree of molecular backbone flexibility.
authors: Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, University of Aarhus, Building 1521, Ny Munkegade, 8000 Aarhus C, Denmark.
authors: J
authors: J
authors: Schnadt
authors: E
authors: E
authors: Rauls
authors: W
authors: W
authors: Xu
authors: R T
authors: RT
authors: Vang
authors: J
authors: J
authors: Knudsen
authors: E
authors: E
authors: Laegsgaard
authors: Z
authors: Z
authors: Li
authors: B
authors: B
authors: Hammer
authors: F
authors: F
authors: Besenbacher