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Issue 46, 2011
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Growth of an oligopyridine adlayer on Ag(100) – A scanning tunnelling microscopy study

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Abstract

The growth behaviour of the oligopyridine derivative 2-phenyl-4,6-bis(6-(pyridine-2-yl)-4-(pyridine-4-yl)pyridine-2-yl)pyrimidine (2,4′-BTP) on Ag(100) in the sub-monolayer regime was investigated by variable temperature scanning tunneling microscopy under ultra-high vacuum conditions. Over the entire coverage range, the molecules are adsorbed in a flat lying configuration, with preferential orientations with respect to the 〈110〉 direction of the surface. The azimuth angles are derived using a previously introduced algorithm that fits the positions of the intramolecular N atoms geometrically to the underlying surface lattice (“points-to-lattice fit”) [H.E. Hoster et al., Langmuir 2007, 23, 11570], indicating that the orientation of the admolecules and thus of the adllayer structure with respect to the Ag(100) surface lattice is determined by the 2,4′-BTP−Ag(100) interaction, while intermolecular interactions are decisive for the structure of the adlayer. The results will be compared to other adsorption systems.

Graphical abstract: Growth of an oligopyridine adlayer on Ag(100) – A scanning tunnelling microscopy study

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Publication details

The article was received on 08 Aug 2011, accepted on 07 Sep 2011 and first published on 27 Sep 2011


Article type: Paper
DOI: 10.1039/C1CP22546D
Citation: Phys. Chem. Chem. Phys., 2011,13, 20724-20728
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    Growth of an oligopyridine adlayer on Ag(100) – A scanning tunnelling microscopy study

    T. Waldmann, C. Nenon, H. E. Hoster and R. J. Behm, Phys. Chem. Chem. Phys., 2011, 13, 20724
    DOI: 10.1039/C1CP22546D

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