Kinetics and Mechanisms of Thermolytic Interconversions of Boron Hydrides

摘要

A Mass-spectrometric method for following the kinetics of decomposition and interconversion of the boron hydrides in the gas phase has been perfected. All volatile components of the reacting mixture, including H2 can be analyzed quantitatively and continuously. Gaseous hexaborane (10) has been studied by this method for pressure in the range 1-10 mmHg, and at temperatures between 75 and 165 C. Its decomposition is much slower than applied in the literature. The main products are hydrogen and a non-volatile solid.