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  • Identifying configuration and orientation of adsorbed molecules by inelastic electron tunneling spectra.

Identifying configuration and orientation of adsorbed molecules by inelastic electron tunneling spectra.

The Journal of chemical physics (2010-08-17)
Hao Ren, Jinlong Yang, Yi Luo
ABSTRACT

Scanning tunneling microscopy (STM) topographical images and inelastic electron tunneling spectra (IETS) of a cis-2-butene molecule adsorbed on a Pd(110) surface have been simulated by first-principles calculations. Calculations have eliminated the ambiguity between the STM image and the adsorption orientation caused by the symmetry of the system and local chemical environment. A combination of STM images and IETS spectra has been shown to be particularly useful in determining the configuration of the molecule on the surface.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
2-Butene, mixture of cis and trans, ≥99%
Sigma-Aldrich
trans-2-Butene, ≥99%
Sigma-Aldrich
cis-2-Butene, ≥99%