Exploring the homopolar dehydrocoupling of ammonia borane by solid-state multinuclear NMR spectroscopy

Abstract

Solid-state ¹H–¹⁴N^OT HMQC, ¹¹B MQMAS and ¹H–¹¹B HETCOR NMR experiments are used to explore the role of homopolar B–B interaction in the thermal dehydrogenation of pure and supported ammonia borane, which is considered as one of the most promising hydrogen storage materials. This work also addresses the subtlety of the homopolar interactions in amine borane compounds, and how they differ from their heteropolar counterparts.