Principal processes in the radiolysis of gases by high energy electrons and fission recoils: Annual progress report, October 1, 1969 to September 30, 1970. [Cyclobutane]

Technical Report · Sun Nov 01 04:00:00 EST 1970

OSTI ID:6876351

Meisels, G G

Three sets of irradiations of ethylene were carried out using fission recoils. A substantial effect of pressure on the yield of acetylene, the predominant product in ethylene radiolysis, was noted. At the same time, even relatively high concentrations of oxygen (ca. 0.5%) were unable to quench the formation of higher hydrocarbons. The most surprising result is the finding that C/sub 4/ olefins are formed in relatively large yields. Propylene, cyclopropane, methylacetylene, allene and 1-butene appear to be products largely characteristic of fission recoil radiolysis, photochemical studies suggested the C/sub 4/H/sub 8//sup +/ ion produced in ethylene and presumably the precursor of the neutral butenes equilibrates and eventually assumes the 2-butene ion structure, with a relatively small energy removal efficiency of less than 2 kcal/mole per collision. This interpretation was supported by further studies on C/sub 4/H/sub 8//sup +/ ions derived from the photolysis of cyclobutane. Measurements of total ionization by Ni-63 rays have been refined to give a precision of ca. 0.1% or better, and W was determined relative to that of nitrogen for normal and isomeric alkanes containing up to 7 carbon atoms, at temperatures from 25/sup 0/ and 200/sup 0/C, and over a range of pressures up to 3 atmospheres. No dependency of W upon these parameters was observed. A series of 14 W-values are reported. They show systematic variation with structure.

• Research Organization: Houston Univ., TX (USA). Dept. of Chemistry
• OSTI ID: 6876351
• Report Number(s): DOE/NBM-7008275; ORO-3606-21; ON: DE87008275
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400701* -- Radiochemistry & Nuclear Chemistry-- Hot-Atom Chemistry
ALKANES
ALKENES
BETA PARTICLES
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CYCLOALKANES
DECOMPOSITION
ETHYLENE
FISSION FRAGMENTS
FLUIDS
GASES
HOT ATOM CHEMISTRY
HYDROCARBONS
IONIZATION
NUCLEAR FRAGMENTS
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOCHEMISTRY
RADIOLYSIS
RECOILS