Crystal structure and explosive performance of a new CL-20/caprolactam cocrystal

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• 作者：Changyan Guo ; Haobin Zhang ; Xiaochuan Wang ; Jinjiang Xu ; Yu Liu ; Xiaofeng Liu ; Hui Huang ; Jie Sun
• 关键词：Cocrystal ; Energetic materials ; Structure analysis ; Influence factors
• 刊名：Journal of Molecular Structure
• 出版年：2013
• 出版时间：24 September, 2013
• 年：2013
• 卷：1048
• 期：Complete
• 页码：267-273
• 全文大小：2128 K

文摘

Co-crystallization is an effective way to improve performance of the high explosive 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane (CL-20). A new CL-20/caprolactam (CPL) cocrystal has been prepared by a rapid solvent evaporation method, and the crystal structure investigations show that the cocrystal is formed by strong intermolecular hydrogen bond interaction. The cocrystal can only be prepared with low moisture content of the air, because water in the air has a profound effect on the cocrystal formation, and it can lead to crystal form conversion of CL-20, but not the formation of cocrystal. The CL20/CPL explosive possess very low sensitivity, and may be used as additive in explosives formulation to desensitize other high explosives.