Collisional deactivation of I(5 2P1/2) by F2
Abstract
The collisional deactivation of I*(5 2P1/2) by F2 was studied in a flow system by monitoring the time-resolved infrared emission from I*. The excited iodine atoms were produced by 266 nm laser photolysis of CF3I. A dark reaction between CF3I and F2 hindered experimental measurements and complicated their interpretation at high F2 concentrations.The data obtained at F2 concentrations at which the extent of the dark reaction was minimal gave the total deactivation rate constant (quenching and reaction) of I* by F2, kF2=(5±3)×10-14 cm3 molecule-1 s-1.
- Publication:
-
Journal of Chemical Physics
- Pub Date:
- April 1986
- DOI:
- 10.1063/1.450050
- Bibcode:
- 1986JChPh..84.4281B
- Keywords:
-
- Atomic Collisions;
- Collision Parameters;
- Fluorine;
- Iodine;
- Quenching (Atomic Physics);
- Deactivation;
- Gas Mixtures;
- Photochemical Reactions;
- Reaction Kinetics;
- Atomic and Molecular Physics