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含能材料  2013 

常见炸药分子的溶剂化效应

DOI: 10.3969/j.issn.1006-9941.2013.05.012

Keywords: 物理化学,溶剂化效应,极化连续介质模型,密度泛函理论

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Abstract:

用密度泛函理论(DFT)和极化连续介质模型(PCM)研究了7种溶剂对22种常见炸药分子的特征键键长、硝基电荷、偶极矩、溶剂化能及键离解能的影响。结果表明,溶剂能极化炸药分子,改变其电子结构,影响其几何结构和能量。对介电常数为0~10.36的溶剂,随溶剂极性增大,炸药分子的特征键长及溶剂化能减少,而硝基负电荷及偶极矩增加。

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