Search for low activation energy abstraction of H from C--H bonds by D atoms in hydrocarbons at 77 K

Journal Article · Sat May 15 00:00:00 EDT 1976 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.432029· OSTI ID:7365392

Wilkey, D D; Willard, J E

Experiments have been done to determine whether thermal D atoms produced at 77 K in 3-methylpentane-d/sub 14/ containing approx.1% C--H bonds as an isotopic impurity are able to abstract H by a low activation energy process, as CH/sub 3/ radicals are known to do. The D atoms have been produced by 254 nm photolysis of DI. The trends in HD/D/sub 2/ ratio with changing ratio of C--H bonds to DI are consistent with the conclusion that the D+C/sub 6/H/sub 13/H..-->.. HD+C/sub 6/H/sub 13/ abstraction occurs at 77 K with low activation energy requiring either a tunneling mechanism or unusual molecular distortion in the glass. (AIP)

• Research Organization: Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
• OSTI ID: 7365392
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 64:10; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400303* -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
ACTIVATION ENERGY
ALKANES
CHEMICAL REACTIONS
DEUTERIUM
ENERGY
HYDROCARBONS
HYDROGEN ISOTOPES
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
LOW TEMPERATURE
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
REACTION KINETICS
STABLE ISOTOPES