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Title: Nuclear Dynamics at Molecule–Metal Interfaces: A Pseudoparticle Perspective

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [2]
  1. Department of Chemistry and Biochemistry, University of California at San Diego, La Jolla, California 92093, United States
  2. Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States, School of Chemistry, Tel Aviv University, Tel Aviv, 69978, Israel

We discuss nuclear dynamics at molecule-metal interfaces including nonequilibrium molecular junctions. Starting from the many-body states (pseudoparticle) formulation of the molecule-metal system in the molecular vibronic basis, we introduce gradient expansion to reduce the adiabatic nuclear dynamics (that is, nuclear dynamics on a single molecular potential surface) into its semiclassical form while maintaining the effect of the nonadiabatic electronic transitions between different molecular charge states. Finally, this yields a set of equations for the nuclear dynamics in the presence of these nonadiabatic transitions, which reproduce the surface-hopping formulation in the limit of small metal-molecule coupling (where broadening of the molecular energy levels can be disregarded) and Ehrenfest dynamics (motion on the potential of mean force) when information on the different charging states is traced out.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Israel Science Foundation; US-Israel Binational Science Foundation
Grant/Contract Number:
SC0006422
OSTI ID:
1227076
Alternate ID(s):
OSTI ID: 1436425
Journal Information:
Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Vol. 6 Journal Issue: 24; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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