Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Growth of an oligopyridine adlayer on Ag(100) - a scanning tunnelling microscopy study
AU - Waldmann, Thomas
AU - Nenon, Christina
AU - Hoster, Harry E.
AU - Behm, R. Juergen
PY - 2011/9/27
Y1 - 2011/9/27
N2 - 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 2,40-BTP - Ag(100) interaction, while intermolecular interactions are decisive for the structure of the adlayer. The results will be compared to other adsorption systems.
AB - 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 2,40-BTP - Ag(100) interaction, while intermolecular interactions are decisive for the structure of the adlayer. The results will be compared to other adsorption systems.
KW - METAL-SURFACES
KW - ORGANIC-MOLECULES
KW - PYROLYTIC-GRAPHITE
KW - ADSORPTION
KW - ASSEMBLIES
KW - COMPLEXES
KW - SUBSTRATE
KW - CU(110)
U2 - 10.1039/c1cp22546d
DO - 10.1039/c1cp22546d
M3 - Journal article
VL - 13
SP - 20724
EP - 20728
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 46
ER -