Contributions of neutron scattering to the chemistry of ammonia-borane

Ashley C. Stowe, Maciej Gutowski, Nancy J. Hess, Tom Autrey, Monika A. Hartl, Luke L. Daemen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Neutron scattering techniques have been employed to investigate the fundamental structural and dynamical properties of the hydrogen storage material ammonia borane. Neutron vibrational spectroscopy of isotopically labeled samples, in concert with ab initio calculations, have allowed for identification of eight di-hydrogen bonding vibrations in the solid state. Comparison of bulk ammonia borane with nano-phase material produced via encapsulation in mesoporous silica suggest a molecular orientation dictated by dipolar interactions with the substrate. Neutron powder diffraction experiments revealed disorder in he solid state crystal structure of ammonia borane in both the high (tetragonal) and low (orthorhombic) temperature phases. Further, at 10 K a tilting of he BN molecular axis of some 10 degrees was observed.

Original languageEnglish
Title of host publicationAbstracts of Papers - 232nd American Chemical Society Meeting and Exposition
StatePublished - 2006
Externally publishedYes
Event232nd American Chemical Society Meeting and Exposition - San Francisco, CA, United States
Duration: Sep 10 2006Sep 14 2006

Publication series

NameACS National Meeting Book of Abstracts
Volume232
ISSN (Print)0065-7727

Conference

Conference232nd American Chemical Society Meeting and Exposition
Country/TerritoryUnited States
CitySan Francisco, CA
Period09/10/0609/14/06

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