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Facile synthesis of three low-sensitivity energetic materials based on pyrimidine backbones.
- Source :
- Energetic Materials Frontiers; 2023, Vol. 4 Issue 1, p16-23, 8p
- Publication Year :
- 2023
-
Abstract
- Using commercially available raw materials, novel pyrimidine-based energetic compounds were synthesized, namely N-(7-oxo-6,7-dihydro-[1,2,5]oxadiazolo[3,4-d]pyrimidin-5-yl)nitramide (1), 2,4,6-triamino-5-nitropyrimidin-1-ium nitrate (2), and 4,6-diamino-5-nitro-2-oxo-2,3-dihydropyrimidin-1-ium nitrate (3). They were fully characterized using NMR (¹H and <superscript>13</superscript>C), IR spectroscopy, and elemental analysis. The crystal structures of compounds 1 and 3 were determined using single-crystal X-ray diffraction. The decomposition temperatures of compounds 1-3 were measured to be 190.2 °C, 156.8 °C, and 234.6 °C, respectively. Their densities were tested to be 1.84, 1.85 g cm<superscript>-3</superscript>, and 1.81 g cm<superscript>-3</superscript>, respectively. They exhibited desirable insensitive properties, with impact sensitivity ≥15 J and friction sensitivity >360 N. In addition, the detonation performances of compounds 1-3 were calculated with detonation pressure of 26.9, 29.6 GPa, and 26.0 GPa, respectively; detonation velocity of 8089, 8644 m s<superscript>-1</superscript>, and 7996 m s<superscript>-1</superscript>, respectively). Simple synthetic processes and high performance make them potential candidates for low-sensitivity energetic materials. [ABSTRACT FROM AUTHOR]
- Subjects :
- PYRIMIDINES
ORGANIC chemistry
ELEMENTAL analysis
VELOCITY
NUCLEAR magnetic resonance
Subjects
Details
- Language :
- English
- ISSN :
- 26666472
- Volume :
- 4
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Energetic Materials Frontiers
- Publication Type :
- Academic Journal
- Accession number :
- 163575762
- Full Text :
- https://doi.org/10.1016/j.enmf.2023.03.005