Mechanisms of the chlorine-38 for chlorine substitution in dichlorobenzene in the condensed phase

Journal Article · Thu Apr 03 04:00:00 EST 1980 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100444a001· OSTI ID:5269353

Berei, K; Ache, H J

The /sup 38/Cl-for-Cl or -H substitution following the /sup 37/Cl(n,..gamma..)/sup 38/Cl nuclear reaction was studied in neat liquid dichlorobenzene isomers with and without I/sub 2/ present as radical scavenger as well as in highly diluted mixtures of these compounds with a variety of organic solvents, such as simple aliphatic hydrocarbons, aromatics, and perfluorinated aliphatics and aromatics. The results obtained in these systems suggest an interaction between the molecules making up the solvent cage with the intermediates forming the substituted product. This interaction consists most likely of a H abstraction by the Cl radical in the solvent cage, which competes with the reactions of thermal Cl leading to the /sup 38/Cl-substitution products, resulting in reduced yields of the latter compound. In the cases of unreactive wall molecules, e.g., perfluorinated hydrocarbons, such a reaction cannot take place, and the yields of the /sup 38/Cl-substitution products remain large. When the hot /sup 38/Cl-for-Cl substitution in solid dichlorobenzenes present in different crystal forms was studied, no effect of the crystal structure on the substitution process was observed.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg
• OSTI ID: 5269353
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:7; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400701* -- Radiochemistry & Nuclear Chemistry-- Hot-Atom Chemistry
ALKANES
AROMATICS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMISTRY
CHLORINATED AROMATIC HYDROCARBONS
CHLORINE 38
CHLORINE ISOTOPES
DATA
DATA FORMS
EXPERIMENTAL DATA
HALOGENATED AROMATIC HYDROCARBONS
HOT ATOM CHEMISTRY
HYDROCARBONS
INFORMATION
ISOLATED VALUES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RADIOCHEMISTRY
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SOLVENTS