Tuesday, 16 February, 2010
Molecular Jigsaw: Pattern Diversity Encoded by Elementary Geometrical Features
C. Rohr, M. Balbs Gambra, K. Gruber, E. C. Constable, E. Frey, T. Franosch and B. A. Hermann -
Nano Lett., Article ASAP DOI: 10.1021/nl903225j (2010)
Scanning tunneling microscopy (STM) images of self-organized monolayers of Fréchet dendrons display a variety of two-dimensional ordering motifs, which are influenced by engineering the molecular interactions. An interaction-site model condenses the essential molecular properties determined by molecular mechanics modeling, which in a Monte Carlo approach successfully predicts the various ordering motifs. This confirms that geometry as well as a few salient weak interaction sites encode these structural motifs.