✍ Scribed by Peter Chen; Steven D. Colson; William A. Chupka
No coin nor oath required. For personal study only.
Using 10.5 eV photoionization and time-of-flight mass analysis of the dissociation products of CH,(B *A', ) in a free jet, we have observed the photochemical production of CHZ. This application of pulsed supersonic jet flash pyrolysis takes advantage of the nearly quantitative radical yield in the nozzle source to eliminate interference from other molecular species that could obscure the predicted methyl radical photochemistry.
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Following earlier room-temperature studies, gaseous mixtures of methyl cyclobutyl ketone (MCK) diluted in argon have been photolyzed at temperatures up to 205°C. Experiments have been carried out at a variety of pressures (up to ca. 2 atm) at wavelengths of 313 nm (steady state conditions) and 308 n
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