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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2008,Vol.24>> Issue(10)>> 1756-1760     doi: 10.3866/PKU.WHXB20081004         中文摘要
Effect of Trans-Cis Isomerization on the Sensitivity of Energetic Azo-Compounds
WANG Luo-Xin; TUO Xin-Lin; XU Jie; LI Song-Nian; WANG Xiao-Gong
Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan University of Science &Engineering, Wuhan 430073, P. R. China; Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
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The structures of some energetic azo-compounds, e.g. azobenzene derivatives, azofurazan, azotriazine, and azotetrazine, were optimized using density functional theory at B3LYP/6-31G* level. A second-order Mφller-Plesset perturbation theory (MP2) calculation with 6-31G* basis set was carried out in order to obtain more precise relative energy between the trans-and cis-isomers of azo-compounds. It was found that a correlation existed between the relative energy and the sensitivity for these energetic azo-compounds. The higher the relative energy is, the lower the sensitivity of the azo-compound is. The relative energy could be regarded as one of the parameters that evaluated the sensitivity of energetic azo-compounds. Furthermore, by analyzing the mechanism of how the trans-cis isomerization process influences the sensitivity, we proposed that the energetic azo-compound owned the characteristic of self-desensitivity.

Keywords: Azo-compound   Energetic material   Trans-cis isomerization   Sensitivity  
Received: 2008-05-09 Accepted: 2008-06-30 Publication Date (Web): 2008-08-25
Corresponding Authors: TUO Xin-Lin Email: tuoxl@mail.tsinghua.edu.cn


Cite this article: WANG Luo-Xin; TUO Xin-Lin; XU Jie; LI Song-Nian; WANG Xiao-Gong. Effect of Trans-Cis Isomerization on the Sensitivity of Energetic Azo-Compounds[J]. Acta Phys. -Chim. Sin., 2008,24 (10): 1756-1760.    doi: 10.3866/PKU.WHXB20081004
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