The molecular structure and inelastic neutron scattering spectra of 2,6-Diamino-3,5-dinitropyrazine

被引:13
作者
Ciezak, JA [1 ]
Trevino, SF
机构
[1] USA, Res Lab, Weapons & Mat Res Directorate, Aberdeen Proving Ground, MD 21005 USA
[2] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
来源
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM | 2005年 / 723卷 / 1-3期
关键词
vibrational frequencies; inelastic neutron scattering; normal modes; ANPZ; 2,6-Diamino-3,5-dinitropyrazine;
D O I
10.1016/j.theochem.2005.02.015
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
Using solid-state density functional theory (DFT) and inelastic neutron scattering (INS), we have studied the structural and vibrational properties of the energetic material, 2,6-Diamino-3,5-dinitropyrazine (ANPZ). The molecular geometry and vibrational spectra are compared to those obtained from DMol3 calculations using the BLYP and BP functionals with the dnd numerical basis set (BLYP/dnd and BP/dnd). In most cases, good agreement was found between the calculated and experimental molecular geometries and vibrational frequencies. In particular, we find the BLYP/dnd method to be slightly superior to the BP/dnd approach for molecular vibrations. © 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:241 / 244
页数:4
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