Selective hole capture by solute molecules in. gamma. -irradiated sec-butyl chloride glasses at 77 K
A sec-butyl chloride glass containing a pair of solutes was ..gamma.. irradiated at 77 K and the yields of the solute cations were measured. For the solute pairs N,N-diethylaniline-biphenyl, pyrene-biphenyl, and benz(..cap alpha..)anthracene-naphthalene, the yield of the cation of the first solute, which is of lower ionization potential than its counterpart (the second solute), was found to be independent of the second-solute concentration. The logarithms of the second-solute-cation yields are linear in the first-solute concentration and a negative slope of the plot agrees with that of the plot of log(y/sub 1//sup 0/-y/sub 1/) vs. the first-solute concentration, where y/sub 1/ is a yield of the first-solute cation and y/sub 1//sup 0/ is a constant. Plots of log(y/sub 2//sup 0/-y/sub 2/) against the second-solute concentration fit a straight line. These remarkable kinetic features were elucidated in terms of selective capture of a different state of holes by each solute. For benz(..cap alpha..)anthracene-pyrene and biphenyl-p-xylene pairs, the semilogarithmic plots do not hold, and the yield of each solute cation depends on the concentration of both solutes. In these cases two solutes capture holes competitively. The competitive capture is regarded as the special case of selective capture where the ionization potentials of two solute are equal or nearly so.
- Research Organization:
- Inst. of Physical and Chemical Research, Saitama, Japan
- OSTI ID:
- 6600517
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 82:18; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Selective capture of migrating holes by pyrene and naphthalene in. gamma. -irradiated butyl chloride glasses at 77 K
Related Subjects
400600* -- Radiation Chemistry
ABSORPTION SPECTRA
AMINES
ANIONS
AROMATICS
BIPHENYL
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
CONDENSED AROMATICS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
GAMMA RADIATION
GLASS
HALOGENATED ALIPHATIC HYDROCARBONS
HOLES
HYDROCARBONS
IONIZATION POTENTIAL
IONIZING RADIATIONS
IONS
KINETICS
LOW TEMPERATURE
NAPHTHALENE
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PYRENE
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
REACTION KINETICS
SPECTRA
TEMPERATURE DEPENDENCE
YIELDS