About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
JACS
Paper
Kinetics of the Thermal Isomerization of Bicyclo[2.1.1]hexane
Abstract
Pyrolysis of bicyclo [2.1.1]hexane in the vapor phase in the temperature range from 327 to 366° led to 1,5-hexadiene as the only detectable product. The kinetics of this isomerization was studied over a pressure range from 0.2 to 20 mm. and found to obey a first-order rate equation under these conditions. The rate of the reaction was unaffected by a 15-fold increase in the surface-to-volume ratio of the reaction vessel or on the addition of nitric oxide or propylene. From the temperature dependence of the process, the first-order rate constant was observed to fit the equation k = 1.49 × 1015 exp(−55,000 ± 1000/RT) sec.-1. The mechanism of the reaction is believed to be analogous to the thermal decomposition of cyclobutane to ethylene. © 1963, American Chemical Society. All rights reserved.