Electronic Resource
New York, NY
:
Wiley-Blackwell
International Journal of Chemical Kinetics
16 (1984), S. 753-766
ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The thermal decomposition of azoethane (AE) was studied by detailed product analysis in the temperature and pressure intervals 508-598 K and 2.7-13.3 kPa. Besides the hydrocarbon products, three characteristic and quantitatively important nitrogen-containing compounds were also determined: ethyl-2-butyldiimide, ethanal-diethylhydrazone, and tetraethyl-hydrazine. Apart from the predominant termination reactions of the ethyl radical with itself and with the μ2 radical, the decomposition is characterized by a very short chain reaction. The measurements led to determination of the following rate constants and rate constant ratios:\documentclass{article}\pagestyle{empty}\begin{document}$$\begin{array}{rcl} {\rm log}(k_1 /S^{ - 1} ) &=& (16.0 \pm 0.2) - (207.6 \pm 2.0){\rm kJ mol}^{ - 1} /2.3RT\\ log(k_4 /k_3^{{1 \mathord{\left/ {\vphantom {1 2}} \right. \kern-\nulldelimiterspace} 2}} {\rm dm}^{{3 \mathord{\left/ {\vphantom {3 2}} \right. \kern-\nulldelimiterspace} 2}} {\rm mol}^{{{ - 1} \mathord{\left/ {\vphantom {{ - 1} 2}} \right. \kern-\nulldelimiterspace} 2}} s^{{{ - 1} \mathord{\left/ {\vphantom {{ - 1} 2}} \right. \kern-\nulldelimiterspace} 2}} ) &=& (3.3 \pm 0.1) - (54.3 \pm 1.3){\rm kJ mol}^{ - 1} /2.3RT \\ \log (k_5 /k_3^{1/2} {\rm dm}^{{3 \mathord{\left/ {\vphantom {3 2}} \right. \kern-\nulldelimiterspace} 2}} {\rm mol}^{{{ - 1} \mathord{\left/ {\vphantom {{ - 1} 2}} \right. \kern-\nulldelimiterspace} 2}} {\rm s}^{{{ - 1} \mathord{\left/ {\vphantom {{ - 1} 2}} \right. \kern-\nulldelimiterspace} 2}} ) &=& (3.0 \pm 0.1) - (33.7 \pm 1.4){\rm kJ mol}^{ - 1} /2.3RT \\ k_{11} /k_{12} &=& 1.3 \pm 0.1 \end{array} $$\end{document} for the following reactions:
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550160611
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