Vibrationally excited carbon dioxide produced by infrared multiphoton pyrolysis

Journal Article · Thu Jun 21 04:00:00 EDT 1984 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150657a030· OSTI ID:6765248

Colberg, M R; Watkins, R J; Krogh, O D

Vibrationally excited CO/sub 2/ has been observed in the infrared multiphoton pyrolysis (IRMP) of some organic molecules. The pyrolysis was induced by a high-power, pulsed CO/sub 2/ TEA laser. The vibrational excitation of CO/sub 2/ was investigated by time-delayed, intracavity probing with a weak flash photolysis CO/sub 2/ laser. The molecules 2-oxetanone (..beta..-propiolactone), 3-butenoic acid (vinylacetic acid), and 2-oxopropanoic acid (pyruvic acid) were all shown to produce vibrationally excited CO/sub 2/ as one of the photofragments. The excitation involved the symmetric stretching mode, as well as the asymmetric stretching mode, of CO/sub 2/. The results provide information about the structural dynamics of each reaction as well as the geometry of the transition states. 7 references, 5 figures.

• Research Organization: Auburn Univ., AL
• OSTI ID: 6765248
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON DIOXIDE LASERS
CARBON OXIDES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
DECARBOXYLATION
DECOMPOSITION
DYNAMICS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
ESTERS
EXCITATION
EXPERIMENTAL DATA
GAS LASERS
HETEROCYCLIC COMPOUNDS
INFORMATION
INFRARED RADIATION
KETO ACIDS
LACTONES
LASER RADIATION
LASERS
MECHANICS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PYROLYSIS
PYRUVIC ACID
RADIATIONS
THERMOCHEMICAL PROCESSES
YIELDS