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In Situ Multinuclear NMR Spectroscopic Studies of the Thermal Decomposition of Ammonia Borane in Solution
Author(s) -
Shaw Wendy J.,
Linehan John C.,
Szymczak Nathaniel K.,
Heldebrant David J.,
Yonker Clem,
Camaioni Donald M.,
Baker R. Tom,
Autrey Tom
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802100
Subject(s) - ammonia borane , borane , in situ , decomposition , hydrogen storage , nuclear magnetic resonance spectroscopy , chemistry , thermal decomposition , hydrogen , ammonia , spectroscopy , kinetics , organic chemistry , catalysis , physics , quantum mechanics
Looking to the future : The decomposition in solution of a potential hydrogen‐storage compound, ammonia borane (AB), was investigated by in situ 11 B NMR spectroscopy and ex situ 15 N 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.