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Mutual isomerization of cyclopentyl and 1-Penten-5-y1 radicals (1986)

Gierczak, Tomasz ; Gawłowski, Janusz ; Niedzielski, Jan

New York, NY : Wiley-Blackwell

International Journal of Chemical Kinetics 18 (1986), S. 623-637

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ISSN: 0538-8066

Keywords: Chemistry ; Physical Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Unimolecular reactions of mutual isomerization of cyclopentyl and 1-penten-5-yl radicals have been investigated by chemical activation. The radicals were generated by adding energized hydrogen atoms (EH about 23 kcal mol-1) to the double bond of either cyclopentane or 1,4-pentadiene. Based on the extensive steady-state RRKM calculations employing the experimental data from this work as well as from the literature, the threshold energies for the cyclopentyl ring opening and closure are 32 ± 0.3 and 16.2 ± 0.3 kcal mol-1, respectively. The entropy of activation for the ring opening is close to zero.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

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