Thermal /sup 38/Cl atom reactions with ethylene

Journal Article · Thu Jun 30 00:00:00 EDT 1977 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100528a004· OSTI ID:7083989

Lee, F S.C.; Rowland, F S

The reactions of thermal chlorine atoms with ethylene have been studied using radioactive /sup 38/Cl atoms from the neutron reaction /sup 37/Cl(n,..gamma..)/sup 38/Cl on CClF/sub 3/. The /sup 38/Cl atoms are moderated to thermal energies by multiple collisions with CClF/sub 3/(mole fraction greater than 0.9), and then allowed to react with C/sub 2/H/sub 4/ plus HI or H/sub 2/S. The only observed product is C/sub 2/H/sub 5//sup 38/Cl, representing addition to ethylene to form C/sub 2/H/sub 4//sup 38/Cl*. The decomposition rate of C/sub 2/H/sub 4//sup 38/Cl* by loss of /sup 38/Cl was measured by varying the total pressure in the system. The rates of decomposition and collisional stabilization are equal at a CClF/sub 3/ pressure of 800 +- 120 Torr. The rate constants for reactions 1, 10, and 15 are in the ratios (k/sub 10//k/sub 1/) = 0.60 +- 0.05 and (k/sub 15//k/sub 1/) = 0.45 +- 0.05 at 293 K: /sup 38/Cl + C/sub 2/H/sub 4/ ..-->.. C/sub 2/H/sub 4//sup 38/Cl*(1); /sup 38/Cl + HI ..-->.. H/sup 38/Cl + I(10); /sup 38/Cl + H/sub 2/S ..-->.. H/sup 38/Cl + SH(15).

• Research Organization: Univ. of California, Irvine
• OSTI ID: 7083989
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 81:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600 -- Radiation Chemistry
400701* -- Radiochemistry & Nuclear Chemistry-- Hot-Atom Chemistry
ALKENES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
CHLORINE 38
CHLORINE ISOTOPES
ELEMENTARY PARTICLES
ETHYLENE
FERMIONS
FLUORINATED ALIPHATIC HYDROCARBONS
HADRONS
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HOT ATOM CHEMISTRY
HYDRIODIC ACID
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IODINE COMPOUNDS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOCHEMISTRY
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
THERMAL NEUTRONS