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  Structure and energetics of diphenylalanine self-assembling on Cu(110)

Tomba, G., Lingenfelder, M., Costantini, G., Kern, K., Klappenberger, F., Barth, J. V., et al. (2007). Structure and energetics of diphenylalanine self-assembling on Cu(110). Journal of Physical Chemistry A, 111(49), 12740-12748.

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Tomba, G., Autor
Lingenfelder, M.1, Autor           
Costantini, G.1, Autor           
Kern, K.1, Autor           
Klappenberger, F., Autor
Barth, J. V.1, 2, Autor           
Ciacchi, L. C., Autor
De Vita, A., Autor
Affiliations:
1Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370481              
2Former Research Groups, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370500              

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 Zusammenfassung: We investigate the dynamical features of the adsorption of diphenylalanine molecules on the Cu(I 10) surface and of their assembling into supramolecular structures by a combination of quantum and classical atomistic modeling with dynamic scanning tunneling microscopy and spectroscopic experiments. Our results reveal a self-assembling mechanism in which isolated adsorbed molecules change their conformation and adsorption mode as a consequence of their mutual interactions. In particular, the formation of zwitterions after proton transfer between initially neutral molecules is found to be the key event of the assembling process, which stabilizes the supramolecular structures. Because of the constraints on the intermolecular bonds exerted by the surface-molecule interactions, the assembly process is strictly stereoselective, And may suggest a general model for patterning and functionalization of bare metal surfaces with short chiral peptides.

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Sprache(n): eng - English
 Datum: 2007
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 338866
ISI: 000251518000075
 Art des Abschluß: -

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Titel: Journal of Physical Chemistry A
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 111 (49) Artikelnummer: - Start- / Endseite: 12740 - 12748 Identifikator: ISSN: 1089-5639