Mesoscopic chiral reshaping of the Ag(110) surface induced by the organic 
molecule PVBA

Pascual, J. I.; Barth, J. V.; Ceballos, G.; Trimarchi, G.; De Vita, A.; Kern, K.; Rust, H. P.

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Mesoscopic chiral reshaping of the Ag(110) surface induced by the organic molecule PVBA

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Barth, J. V.
Former Research Groups, Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Kern, K.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Pascual, J. I., Barth, J. V., Ceballos, G., Trimarchi, G., De Vita, A., Kern, K., et al. (2004). Mesoscopic chiral reshaping of the Ag(110) surface induced by the organic molecule PVBA. Journal of Chemical Physics, 120(24), 11367-11370.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FB6D-E

Abstract

We report scanning tunneling microscopy observations on the
restructuring of a Ag(110) surface induced by the molecule
4-[trans-2-(pyrid-4-yl-vinyl)]benzoic acid (PVBA). Our data reveal that
the surface undergoes a mesoscopic step faceting following exposure to
submonolayer coverages and thermal activation. A sawtooth arrangement
evolves implying long-range mass transport of substrate atoms and
forming a regular arrangement of kink sites. Its formation is
associated with the molecules' functional headgroups forming
carboxylates with {100} Ag microfacets at step edges, and eventually
operating to reshape the surface morphology. Interestingly, the
resulting microfacets act as chiral templates for the growth of
supramolecular PVBA structures. Theoretical modeling based on ab initio
results indicates that chiral recognition processes discriminating
between the two enantiomers of adsorbed PVBA molecules occur in this
process. (C) 2004 American Institute of Physics.