The growth of aminoborane oligomers through the dehydrocoupling reactions of ammonia borane (NH3BH3) has been of great recent interest owing to the potential use of amineboranes as chemical hydrogen storage materials and/or precursors to boron nitride ceramics. While long-chain oligomers and polymers have been shown to be products of metal-catalyzed amineborane dehydrogenation reactions, only a few small polyaminoborane oligomers have previously been prepared and characterized. Our work will be described that has resulted in both the development of the systematic syntheses and the structural characterizations of new discrete linear and chain-branched oligomeric polyaminoboranes. Also discussed will be our studies demonstrating that, depending upon the activation method, amineborane dehydro-oligomerization reactions can occur by quite different mechanistic pathways.

Award Address  (F. Albert Cotton Award in Synthetic Inorganic Chemistry sponsored by the F. Albert Cotton Endowment Fund). Chemical hydrogen storage: Pathways and intermediates for activated amineborane hydrogen-release/oligomerization reactions

247th National Meeting (2014)

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