A combined experimental inelastic neutron scattering, Raman and ab initio lattice dynamics study of α-lithium amidoborane

被引:13
作者
Ryan, Kate R. [1 ,2 ]
Ramirez-Cuesta, A. J. [1 ]
Refson, Keith [1 ]
Jones, Martin O. [1 ,2 ]
Edwards, Peter P. [2 ]
David, William I. F. [1 ]
机构
[1] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[2] Univ Oxford, Inorgan Chem Lab, Oxford OX1 0ER, England
基金
英国工程与自然科学研究理事会;
关键词
HYDROGEN STORAGE;
D O I
10.1039/c1cp20587k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A combination of inelastic neutron scattering (INS) spectroscopy and Raman spectroscopy with periodic density functional theory calculations is used to provide a complete assignment of the vibrational spectra of alpha-lithium amidoborane (alpha-LiNH2BH3). The Born charge density and the atomic motion up to the decomposition temperature have been modelled. These models not only explain the nature of bonding in alpha-LiNH2BH3 but also provide an insight into the atomic mechanisms of its decomposition. The (INS) measurements were performed in the range of 0-4000 cm(-1) on the high-resolution time-of-flight TOSCA INS spectrometer at the ISIS Spallation Neutron Source at the Rutherford Appleton Laboratory.
引用
收藏
页码:12249 / 12253
页数:5
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