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Time-dependent mass spectra and breakdown graphs: The decarbonylation of tropone

✍ Scribed by J.P. Ziesel; Y. Malinovich; N. Ohmichi; C. Lifshitz

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
562 KB
Volume
136
Category
Article
ISSN
0009-2614

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✦ Synopsis

The decarbonylation of the tropone radical cation has been studied by time-resolved photoionization mass spectrometry (TPIMS) and time-resolved ion momentum spcctrometry (TRIMS). Experimental photoionization efficiency curves at t= 6 ps and 2 ms were modelled by RRKM/QET calculations. The'critical energy of activation (&) was determined to be 83.9 f 5 kJ/mol. The reactant C,HsO' is less stable than the products &Hi + CO, and the reaction possesses a reverse activation energy of 128 kJ/mol which results in a large kinetic energy release.

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