TITLE

Binary combination and overtone modes in the C-H stretch region in ethoxy adsorbed on Cu(100): Experimental and calculated vibrational spectra

AUTHOR(S)
Ásmundsson, R.; Uvdal, P.; MacKerell, A. D.
PUB. DATE
July 2000
SOURCE
Journal of Chemical Physics;7/15/2000, Vol. 113 Issue 3
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The C-H stretch and bend modes of ethoxy adsorbed on Cu(100) are investigated using Fourier transform infrared spectroscopy. Three fundamental stretch modes and four fundamental bend modes are assigned. In addition, five binary bend modes are identified; two combination and three overtone modes. It is demonstrated that by combining quantum mechanical ab initio electronic structure calculations and [sup 13]C isotopic labeling, a conclusive assignment of all observed modes is possible. The implications for the determination of surface/adsorbate geometry using vibrational spectroscopy are discussed. © 2000 American Institute of Physics.
ACCESSION #
4411871

 

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