Energetic compounds based on 4-Amino-1,2,4-triazole (ATZ) and Picrate (PA): [Zn(H2O)6](PA)2·3H2O and [Zn(ATZ)3](PA)2·2.5H2O]n

Bi Dong Wu, Tong Lai Zhang, Yu Lu Li, Wen Chao Tong, Zun Ning Zhou, Jian Guo Zhang, Li Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Two energetic compounds, [Zn(H2O)6](PA) 2·3H2O (1) and Zn(ATZ)3](PA) 2·2.5H2O]n (2), were synthesized based on 4-amino- 1,2,4-triazole (ATZ) and picrate (PA), and characterized by elemental analysis and Fourier transform infrared (FT-IR) spectroscopy. The crystallographic data showed that the crystals of 1 and 2 belong to the monoclinic space group P21/n and the triclinic space group P1 , respectively. Furthermore, the ZnII cations are six-coordinated with six oxygen atoms from crystal water molecules for 1 and six nitrogen atoms from ATZ for 2, and exhibit distorted octahedral configurations. Thermal decomposition mechanisms were determined based on differential scanning calorimeter (DSC) curve corresponding to thermogravimetry- derivative thermogravimetry (TG-DTG) curves and kinetic parameters of the first exothermic process were studied by using Kissinger's and Ozawa's method. The energies of the impact sensitivities were 27.8 J for 2 and far greater than 29.4 J for 1. In addition, the experiment found the heats of combustion were -6.53 MJ·kg-1 for 1 and -11.33 MJ·kg-1 for 2 by oxygen bomb calorimeter. Therefore, compound 2 can improve the explosion performance and can maybe regarded as the less toxicity energy additive for the explosives and propellant formulations.

Original languageEnglish
Pages (from-to)2209-2215
Number of pages7
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume639
Issue number12-13
DOIs
Publication statusPublished - Oct 2013

Keywords

  • 4-Amino-1-2-4-triazole
  • Crystal
  • Sensitivities
  • Thermal
  • Zinc

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