Temperature dependence of the intramolecular kinetic isotope effect in the reaction system Cl + HD
Journal Article
·
· J. Chem. Phys., v. 59, no. 5, pp. 2415-2419
OSTI ID:4330588
The relative rates of thc two competing isotopic reactions, (1) Cl + HD yields HCl + D and (2) Cl + DH yields DC1 + H were measured as a function of reaction temperature in the range of 297-443 deg K. The ratio of rates can be expressed as an Arrhenius type equation; k/sub 1/k/sub 2/= (0.81 plus or minus 0.04)xexp STA(460 plus or minus 50)/RT!. The very fast reaction of the hydrogen atoms formed with residual molecular chlorine, which under conventional experimental conditions would mask any isotope effect, was climinated by adding NO/sub 2/ as an efficient hydrogen atom scavenger to the stream of reactants in a fast flow reactor. (auth)
- Research Organization:
- Isotope Department, Weizmann Institute of Science, Rehovot, Israel
- NSA Number:
- NSA-29-020673
- OSTI ID:
- 4330588
- Journal Information:
- J. Chem. Phys., v. 59, no. 5, pp. 2415-2419, Journal Name: J. Chem. Phys., v. 59, no. 5, pp. 2415-2419; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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