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A series of nitrogen-rich compounds derived from 2,3-di(1H-tetrazol-5-yl)-pyrazine were successfully synthesized by 2,3-Pyrazinedicarbonitrile. These nitrogen-rich compounds were fully characterized by nuclear magnetic resonance (NMR), elemental analysis (EA), and infrared spectroscopy (IR), with the structure of compound 3 confirmed by single-crystal X-ray diffraction. The energetic properties and physicochemical of all synthesized nitrogen-rich compounds including density, thermal stability, and detonation performance were investigated. Among these nitrogen-rich compounds, the ammonium salt (3a) (Dv = 8223.5 m·s−1, P = 22.8 GPa), hydrazinium salt (3b) (Dv = 8690.5 m·s−1, P = 25.7 GPa), and hydroxylamine salt (3c) (Dv = 8123.6 m·s−1, P = 23.6 GPa) exhibit excellent calculated detonation performance, outperforming the commonly used high explosive TNT (Dv = 6881 m·s−1, P = 19.5 GPa). Additionally, all newly synthesized compounds show higher thermal decomposition temperatures than RDX (Td = 210 ºC), indicating their promising potential as heat-resistant nitrogen-rich materials.

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Construction of a Novel Nitrogen-Rich Material Based on Pyrazine Bridges

  • 会议论文

  • 发表日期：

    2026年

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  • Changyong Mao,
  • Yaqun Dong,
  • Yongming Zhang,
  • Chunlin Chen,
  • Xiaowei Han

摘要

A series of nitrogen-rich compounds derived from 2,3-di(1H-tetrazol-5-yl)-pyrazine were successfully synthesized by 2,3-Pyrazinedicarbonitrile. These nitrogen-rich compounds were fully characterized by nuclear magnetic resonance (NMR), elemental analysis (EA), and infrared spectroscopy (IR), with the structure of compound 3 confirmed by single-crystal X-ray diffraction. The energetic properties and physicochemical of all synthesized nitrogen-rich compounds including density, thermal stability, and detonation performance were investigated. Among these nitrogen-rich compounds, the ammonium salt (3a) (Dv = 8223.5 m·s−1, P = 22.8 GPa), hydrazinium salt (3b) (Dv = 8690.5 m·s−1, P = 25.7 GPa), and hydroxylamine salt (3c) (Dv = 8123.6 m·s−1, P = 23.6 GPa) exhibit excellent calculated detonation performance, outperforming the commonly used high explosive TNT (Dv = 6881 m·s−1, P = 19.5 GPa). Additionally, all newly synthesized compounds show higher thermal decomposition temperatures than RDX (Td = 210 ºC), indicating their promising potential as heat-resistant nitrogen-rich materials.