In Situ Multinuclear NMR Spectroscopic Studies of the Thermal Decomposition of Ammonia Borane in Solution

Abstract

Looking to the future: The decomposition in solution of a potential hydrogen-storage compound, ammonia borane (AB), was investigated by in situ 11B NMR spectroscopy and ex situ 15N NMR spectroscopy. The reaction was found to be second order in AB with an activation barrier of (25±2) kcal mol−1. The second-order kinetics have implications for the use of solutions containing AB in high concentrations for hydrogen storage. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802100_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.