The Thermal Decomposition of 2-Ethyldecaborane
Abstract
The kinetics of the thermal decomposition of 2-ethyldecaborane have been investigated for a static system in the temperature range 210 deg - 230 deg C and at 2-ethyldecaborane pressures of 100 - 600 mm Hg. The decomposition leads initially to decaborane and diethyldecaboranes, its rate is of the second order with respect to 2-ethyldecaborane; the activation energy is 39.5 +/- 0.5 koal/mole. In the later stages of the decomposition the reaction deviates from the second order dependence due to side reactions which give nonvolatile solid hydrides, alkylated nonvolatile solid hydrides, hydrogen, methane and a little ethane. 1,2-diethyldecaborane is always present in the products in greater concentration than 2,4-diethyldecaborane. This and other results have been interpreted in terms of a hyperconjugation effect of the alkyl group with the a B-B bonds in the decaborane structure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1962
- Accession Number
- ADA492748
Entities
People
- A. J. Owen
- F. W. Emery
- P. L. Harold