Construction of New Insensitive Explosives: Fused N5-Chain N1,N3,N5-(1,2,3,4-Tetrazole-5-Nitro)-1,3,5-Triamino-2,4,6-TrinitrobenzeneDerivatives

被引:6
作者
Ma, Qing [1 ,2 ]
Liao, Long-Yu [2 ]
Cheng, Bi-Bo [2 ]
Fan, Gui-Juan [2 ]
Huang, Jing-Lun [2 ]
Wang, Jun [2 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing, Jiangsu, Peoples R China
[2] China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China
基金
中国国家自然科学基金;
关键词
amino polynitrobenzene derivatives; density functional theory; detonation properties; sensitivity; thermal stability; BOND-DISSOCIATION ENERGIES; NITRO-GROUP CHARGES; SOLID-PHASE HEATS; DETONATION PROPERTIES; IMPACT SENSITIVITIES; ELECTROSTATIC POTENTIALS; ENERGETIC MATERIALS; PREDICTION; MOLECULES; 1,5-DIAMINOTETRAZOLE;
D O I
10.1080/10406638.2015.1042550
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A series of N-1,N-3,N-5-(1,2,3,4-tetrazole-5-nitro)-1,3,5-triamino-2,4,6-trinitrobenzene derivatives containing fused N-5-chain were investigated theoretically. Density functional theory has been employed to calculate their geometric, electronic structures, band gaps, and heats of formation at the B3LYP/6-31G** level. The detonation performance was evaluated by using Kamlet-Jacobs equations based on the calculated densities and HOFs. The thermal stability of these compounds was investigated by bond dissociation energies, energy gaps and molecular electrostatic potentials. Results show that there are good linear relationships between detonation velocity, detonation pressure and the number of nitro groups. Most of the designed derivatives have higher detonation velocity (D), detonation pressure (P), and specific impulse (I-sp) than those of RDX. D and I-sp of molecule L even outperform those of CL-20. Some of the title molecules have higher h(50) (impact sensitivity) than RDX (except for D, H, L). According to the quantitative standard of energy and stability as insensitive high energetic materials (IHEMs), molecules I and J essentially satisfy this requirement. These results provide basic information for molecules design of novel IHEMs.
引用
收藏
页码:639 / 655
页数:17
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