INFRARED STUDY OF INTERMOLECULAR INTERACTIONS FOR CARBON MONOXIDE CHEMISORBED ON PLATINUM
Publisher:
Ohio State UniversityAbstract:
“The carbon-oxygen stretching modes of isotopic mixtures of $C^{12}O$ and $C^{12}O$ chemisorbed on silica-supported platinum at $200^{\circ} C$ produce two resolvable bands between 2100 and $1940\;cm^{-1}$ whose frequencies and relative intensities are strongly dependent on surface coverage. These results may he explained by a mathematical treatment based on dipole-dipole interactions between chemisorbed molecules. The employment of a simplified model allows the calculation of theoretical spectra for various crystal faces. In favorable cases, a comparison of experimental and theoretical spectra is useful for determining which crystal face is exposed on the platinum particles. These interaction effects also reveal the presence of the non-uniform distribution of chemisorbed CO molecules which apparently occurs for adsorption fit room temperature.”
Description:
$^{*}$Work done at Texaco Research Center, Beacon, New York.
Author Institution: Department of Chemistry, Kansas State University; Department of Chemistry, Texaco Research Centre
Author Institution: Department of Chemistry, Kansas State University; Department of Chemistry, Texaco Research Centre
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