Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (6): 931-935.

• Articles • Previous Articles     Next Articles

Novel High-nitrogen Energetic Compound Based on Semicarbazide-substituted Tetrazine

ZHANG Jian-guo1, LIANG Yan-hui2, XIE Shao-hua1, FENG Jin-ling1, WANG Kun1, ZHANG Tong-lai1   

  1. 1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China;
    2. The 46th Institute of the Sixth Academy of China Aerospace Science & Industry Corporation, Hohhot 010010, P. R. China
  • Received:2011-12-29 Revised:2012-03-23 Online:2012-11-25 Published:2012-11-09
  • Contact: ZHANG Jian-guo E-mail:zhangjianguobit@yahoo.com.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20471008) and the Program of the Ministry of Education of China for New Century Excellent Talents in Universities(No.NCET-09-0051).

Abstract:

A novel energetic compound 3-(3,5-dimethylpyrazol-1-yl)-6-semicarbazide-1,2,4,5-tetrazine(DSTZ) was prepared and characterized by elemental analysis and Fourier transform infrared(FTIR) spectroscopy. The crystal structure was determined by X-ray single crystal diffraction technology. The crystal belongs to the monoclinic system with a P21/c space group, a=0.9942(7) nm, b=0.5067(3) nm, c=1.1830(8) nm, β=109.616°, Z=2 and Dc=1.475 g/cm3. With extensive hydrogen bonds, the molecules were linked together to form a three-dimensional herringbone-like pattern. Thermal analysis of the compound was carried out via differential scanning calorimetry(DSC) and thermogravimetric-derivative thermogravimetry(TG-DTG). Under a nitrogen atmosphere at a heating rate of 10 K/min, DSTZ decomposed directly in a range of 493-513 K. Only one intense exothermic process was observed and the decomposition products were all gaseous products. Conventional sensitivity properties were determined, showing that the title complex was insensitive to friction, impact and flame.

Key words: 1,2,4,5-Tetrazine, Semicarbazide, Crystal structure, Sensitivity property