|Author||Russell, R. L. ♦ Rowland, F. S.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ CARBON 14 ♦ ISOTOPE EFFECTS ♦ KETENES ♦ PHOTOLYSIS ♦ METHYLENE RADICALS ♦ REACTION KINETICS ♦ TRITIUM ♦ EXPERIMENTAL DATA ♦ ISOLATED VALUES ♦ LABELLED COMPOUNDS ♦ BETA DECAY RADIOISOTOPES ♦ BETA-MINUS DECAY RADIOISOTOPES ♦ CARBON ISOTOPES ♦ CHEMICAL REACTIONS ♦ DATA ♦ DATA FORMS ♦ DECOMPOSITION ♦ EVEN-EVEN NUCLEI ♦ HYDROGEN ISOTOPES ♦ INFORMATION ♦ ISOTOPES ♦ KINETICS ♦ LIGHT NUCLEI ♦ NUCLEI ♦ NUMERICAL DATA ♦ ODD-EVEN NUCLEI ♦ ORGANIC COMPOUNDS ♦ ORGANIC OXYGEN COMPOUNDS ♦ PHOTOCHEMICAL REACTIONS ♦ RADICALS ♦ RADIOISOTOPES ♦ YEARS LIVING RADIOISOTOPES ♦ Photochemistry ♦ Organic Chemistry- Isotope Effects- (-1987)|
|Abstract||The photolysis of ketene has been studied with both /sup 14/CH/sub 2/CO and CHTCO, and a new mechanism is suggested for the reactions of triplet methylene in pure ketene. The isotopic experiments are consistent with the set of reactions, (6) plus (8) to (11), /sup 3/CH/sub 2/ + /sup 3/CH/sub 2/ ..-->.. C/sub 2/H/sub 2/ + 2H (8), H + CH/sub 2/CO ..-->.. CH/sub 3/ + CO (9), /sup 3/CH/sub 2/ + CH/sub 3/ ..-->.. C/sub 2/H/sub 4/ + H (10,11), CH/sub 3/ + CH/sub 3/ ..-->.. C/sub 2/H/sub 6/ (6); and not with the earlier proposal of (3) to (6), /sup 3/CH/sub 2/ + CH/sub 2/CO ..-->.. CH/sub 3/ + CHCO (3), CHCO + CHCO ..-->.. C/sub 2/H/sub 2/ + 2CO (4), CH/sub 3/ + CHCO ..-->.. C/sub 2/H/sub 4/ + CO (5). The formation of atomic hydrogen rather than molecular hydrogen in (8) has important consequences for interpretation of the flash photolysis of ketene.|
|Learning Resource Type||Article|
|Publisher Department||Univ. of California, Irvine|
|Publisher Place||United States|
|Journal||J. Phys. Chem.|
|Organization||Univ. of California, Irvine|
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