Normal Unenhanced Raman Spectra of CO and CH/sub 4/ adsorbed on cobalt(poly)

Journal Article · Fri Mar 01 04:00:00 EST 1985 · Spectrosc. Lett.; (United States)

DOI:https://doi.org/10.1080/00387018508062223· OSTI ID:5700860

Marzouk, H A; Bradley, E B; Arunkumar, K A

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), Journal Name: Spectrosc. Lett.; (United States) Vol. 18:3; ISSN SPLEB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKANES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COBALT
ELECTRONIC STRUCTURE
ELEMENTS
HYDROCARBONS
MEDIUM TEMPERATURE
METALS
METHANE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RAMAN SPECTRA
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENTS