Normal Unenhanced Raman Spectra of CO and CH/sub 4/ adsorbed on cobalt(poly)
Normal Unenhanced Raman Spectra (NURS) of low-polarizability CO molecules were observed for the first time on cobalt at R.T. and residual gas pressure. We assign five bands observed between 2030--2130 cm/sup -1/ to linear chemisorbed CO species, while those observed between 1840--2010 cm/sup -1/ have been ascribed to the 2--fold chemisorbed species. The three bands observed between 1740--1830 cm/sup -1/ we believe are due to the 3--fold species. The corresponding fourteen Co-C stretches were observed and assigned. A model based upon electron backdonation is proposed for each of the three structures. NURS were also observed at R.T. for physisorbed CH/sub 4/ and assignments are made to the four frequencies of CH/sub 4/.
- Research Organization:
- Department of Electrical Engineering, University of Kentucky, Lexington, Kentucky 40506-0046
- DOE Contract Number:
- AS05-79ER10447
- OSTI ID:
- 5700860
- Journal Information:
- Spectrosc. Lett.; (United States), Vol. 18:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON MONOXIDE
ELECTRONIC STRUCTURE
RAMAN SPECTRA
COBALT
SORPTIVE PROPERTIES
METHANE
ADSORPTION
MEDIUM TEMPERATURE
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
ELEMENTS
HYDROCARBONS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SORPTION
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)