ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
H2S accelerates the thermal isomerization of cis-2-pentene (P2c) to 1-pentene (P1) and trans-2-pentene (P2t) to around 800 K. This effect is interpreted on the basis of a free radical mechanism in which 2-pentenyl and thiyl radicals are the main chain carriers. P1 formation is essentially explained by the competing processes: P2t formation is due to addition-elimination processes: the importance of which has been evaluated against process (-4μ): The following ratios of rate constants have been measured and are discussed: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{rcl} k_{10} /k_2 &\approx& 10^{- 3.19\, \pm \,2.3}\,{\rm \,exp(31,200}\, \pm \,{\rm 800/}RT)\,{\rm \,mol}^{{\rm - 1}}\,{\rm \,cm}^{\rm 3}\\ k_{11} /k_{- 4\mu} &\approx& 10^{.89\, \pm \,.49}\,{\rm \,exp(2100}\, \pm \,17{\rm 00/}RT) \end{array} $$\end{document}(RT in cal mol-1).
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550200804
