Title

Surface Diffusive Motion in a Periodic and Asymmetric Potential

Authors

Authors

G. Pawin; K. L. Wong; K. Y. Kwon; R. J. Frisbee; T. S. Rahman;L. Bartels

Comments

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Abstract

9,10-Dithioanthracene adsorbed on Cu(111) diffuses exclusively along the high-symmetry axis of the molecule-substrate system. Further reduction of the symmetry of the system by asymmetric methylation does not reduce the symmetry of the motion although it has a substantial. effect on the diffusion rate (100-fold reduction) and renders the diffusion barrier asymmetric. This is in contrast to the behavior expected of a classical particle, and it provides a direct single-molecule-scale vista on the validity of The Principle of Microscopic Reversibility first formulated by Tolman in 1924, which despite its fundamental role has attracted little visualization.

Journal Title

Journal of the American Chemical Society

Volume

130

Issue/Number

46

Publication Date

1-1-2008

Document Type

Article

First Page

15244

Last Page

+

WOS Identifier

WOS:000263311300012

ISSN

0002-7863

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