Collisional relaxation of CO/sub 2/ (X /sup 1/. sigma. /sup +//sub g/) (00/sup 0/1) and CO(X /sup 1/. sigma. /sup +/)(v=1) by some perfluoroalkyl bromides and iodides
The rate constants for the collisional relaxation of vibrationally excited CO/sub 2/ (00/sup 0/1) and CO (v=1) molecules by some perfluoroalkyl bromide and iodide molecules have been determined by the laser induced fluorescence technique. The measured rates were k/sub CO/sub 2/--CF/sub 3/Br/=1.47 +- 0.05 x 10/sup 5/ s/sup -1/xtorr/sup -1/, k/sub CO/sub 2/--C/sub 2/F/sub 5/Br/=1.67 +- 0.05 s/sup -1/xtorr/sup -1/, k/sub CO/sub 2/--CF/sub 3/I/=2.69 +- 0.08 x 10/sup 5/ s/sup -1/xtorr/sup -1/, k/sub CO/sub 2/--C/sub 2/F/sub 5/I/=0.99 +- 0.04 x 10/sup 5/ s/sup -1/xtorr/sup -1/, k/sub CO/sub 2/--n/-C/sub 3/F/sub 7/I=1.16 +- 0.07 x 10/sup 5/ s/sup -1/xtorr/sup -1/, and k/sub CO--CF/sub 3/Br/=819 +- 39 s/sup -1/xtorr/sup -1/. The relevance of these rates to E..-->..V transfer lasers is discussed. A new and very liable determination of the self-relaxation rate constant of pure CO/sub 2/ has also been determined: this rate is k/sub CO/sub 2/--CO/sub 2//=305 +- 6 s/sup -1/xtorr/sup -1/.
- Research Organization:
- School of Electrical Engineering and Materials Science Center, Cornell University, Ithaca, New York 14853
- OSTI ID:
- 6649362
- Journal Information:
- J. Chem. Phys.; (United States), Vol. 69:10
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BROMINATED ALIPHATIC HYDROCARBONS
MOLECULE-MOLECULE COLLISIONS
CARBON DIOXIDE
CARBON MONOXIDE
FLUORINATED ALIPHATIC HYDROCARBONS
IODINATED ALIPHATIC HYDROCARBONS
ENERGY TRANSFER
FLUORESCENCE
RELAXATION
VIBRATIONAL STATES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
ENERGY LEVELS
EXCITED STATES
HALOGENATED ALIPHATIC HYDROCARBONS
LUMINESCENCE
MOLECULE COLLISIONS
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena