A B3LYP and MP2(full) theoretical investigation into the strength of the C-NO2 bond upon the formation of the molecule-cation interaction between Na+ and the nitro group of nitrotriazole or its methyl derivatives

作者：Wei, Qing-guo; Shi, Wen-jing^*; Ren, Fu-de; Wang, Yong; Ren, Jun

来源：Journal of Molecular Modeling, 2013, 19(1): 453-463.

DOI：10.1007/s00894-012-1573-2

• Bond dissociation energy in C-NO2 bond
• Molecule-cation interaction
• MP2(full)

The changes of bond dissociation energy (BDE) in the C-NO2 bond and nitro group charge upon the formation of the molecule-cation interaction between Na+ and the nitro group of 14 kinds of nitrotriazoles or methyl derivatives were investigated using the B3LYP and MP2(full) methods with the 6-311++G**, 6-311++G(2df,2p) and aug-cc-pVTZ basis sets. The strength of the C-NO2 bond was enhanced in comparison with that in the isolated nitrotriazole molecule upon the formation of molecule-cation interaction. The increment of the C-NO2 bond dissociation energy (Delta BDE) correlated well with the molecule-cation interaction energy. Electron density shifts analysis showed that the electron density shifted toward the C-NO2 bond upon complex formation, leading to the strengthened C-NO2 bond and the possibly reduced explosive sensitivity.

• 出版日期2013-1
• 单位山西医科大学; 中北大学