Kinetics of the Cl--H/sub 2/ system. III. The deuterium isotope effect in Cl+H/sub 2/

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · J. Chem. Phys.; (United States)

OSTI ID:5992395

Miller, J C; Gordon, R J

The rate constant for the reaction Cl+D/sub 2/ was measured over the temperature range 200--500 K, using the flash photolysis-resonance fluorescence technique. These data, together with previous measurements for Cl+H/sub 2/, are compared with the isotope effect measured by Persky and Klein in a static bulb. Over the range 295--500 K, our data are in excellent agreement with their results. At lower temperatures, the Cl+D/sub 2/ rate constant displays an anomalous non-Arrhenius curvature. A mechanism involving the reaction of Cl atoms with vibrationally excited D/sub 2/ is proposed to explain this effect.

• Research Organization: Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60680
• OSTI ID: 5992395
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 79:3; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL REACTION KINETICS
CHLORINE
DEUTERIUM
ELEMENTS
HALOGENS
HIGH TEMPERATURE
HYDROGEN
HYDROGEN ISOTOPES
ISOTOPE EFFECTS
ISOTOPES
KINETICS
LIGHT NUCLEI
LOW TEMPERATURE
MEDIUM TEMPERATURE
NONMETALS
NUCLEI
ODD-ODD NUCLEI
REACTION KINETICS
STABLE ISOTOPES