ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The kinetics of the thermal reactions of bicyclo[4.2.2]deca-3,7-diene (BDD) and endo- and exo-5-vinylbicyclo[2.2.2]oct-2-ene (endo- and exo-VBO) have been studied in the gas phase. The temperature range was 459-526 K for BDD, 476-563 K for endo-VBO, and 513-578 K for exo-VBO. The initial pressures were varied from 2 to about 40 torr. These compounds isomerize to cis-1,2,4a,5,8,8a-hexahydronaphtalene (HHN) and into each other, and decompose to 1,3-butadiene (BD) + cyclohexa-1,3-diene (CHD). The reactions are homogeneous and first order. Their rate constants (in s-1) are given by: where the superscripts represent the reagents and the subscripts the products. The heats of formation and the entropies of endo-VBO, exo-VBO, and BDD are estimated.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550140305
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