Infrared spectroscopic study of the rotation of chemisorbed methoxy species on an alumina surface

Journal Article · Sun Apr 15 00:00:00 EDT 1990 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.458545· OSTI ID:6835606

Beebe, Jr, T P; Crowell, J E; Yates, Jr, J T ^[1]

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1. Surface Science Center, Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (USA)

We present experimental and calculated vibration--rotation spectra as a function of temperature for the methoxy species (--OCH{sub 3} and --OCD{sub 3}) chemisorbed on an alumina surface. The axis of rotation is the C--O bond axis. The model for our calculations is that of free rotation, and we describe the methods employed here in full detail. The qualitative agreement between the calculated and experimental spectra suggests that the adsorbed methoxy species is undergoing free rotational motion about the C--O bond axis.

• OSTI ID: 6835606
• Journal Information: Journal of Chemical Physics; (USA), Vol. 92:8; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM OXIDES
SORPTIVE PROPERTIES
METHOXY RADICALS
INFRARED SPECTRA
CHEMISORPTION
EXPERIMENTAL DATA
LINE WIDTHS
ROTATIONAL STATES
TEMPERATURE DEPENDENCE
VIBRATIONAL STATES
ALKOXY RADICALS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
ENERGY LEVELS
EXCITED STATES
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RADICALS
SEPARATION PROCESSES
SORPTION
SPECTRA
SURFACE PROPERTIES
400201* - Chemical & Physicochemical Properties