In situ multinuclear NMR spectroscopic studies of the thermal decomposition of ammonia borane in solution

Wendy J. Shaw, John C. Linehan, Nathaniel K. Szymczak, David J. Heldebrant, Clem Yonker, Donald M. Camaioni, R. Tom Baker, Tom Autrey

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Abstract

(Chemical Equation Presented) 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 withan 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.

Original languageEnglish
Pages (from-to)7493-7496
Number of pages4
JournalAngewandte Chemie - International Edition
Volume47
Issue number39
DOIs
Publication statusPublished - Sep 15 2008

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Keywords

  • Amine boranes
  • Hydrogen storage
  • Kinetics
  • NMR spectroscopy
  • Thermolysis

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Shaw, W. J., Linehan, J. C., Szymczak, N. K., Heldebrant, D. J., Yonker, C., Camaioni, D. M., Baker, R. T., & Autrey, T. (2008). In situ multinuclear NMR spectroscopic studies of the thermal decomposition of ammonia borane in solution. Angewandte Chemie - International Edition, 47(39), 7493-7496. https://doi.org/10.1002/anie.200802100