Structural, thermochemical and detonation performance of derivatives of 1,2,4,5-tetrazine and 1,4 N-oxide 1,2,4,5-tetrazine as new high-performance and nitrogen-rich energetic materials

2016 ◽  
Vol 14 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Akbar Gholami Roknabadi ◽  
Mohammad Hossein Keshavarz ◽  
Karim Esmailpour ◽  
Mehdi Zamani
Keyword(s):  
Energetic Materials ◽  
High Performance ◽  
Detonation Performance ◽  
Derivatives Of

Combinations of furoxan and 1,2,4-oxadiazole for the generation of high performance energetic materials

2019 ◽  
Vol 48 (39) ◽  
pp. 14705-14711 ◽  
Author(s):  
Hualin Xiong ◽  
Hongwei Yang ◽  
Caijin Lei ◽  
Pengjiu Yang ◽  
Wei Hu ◽  
...  
Keyword(s):  
Energetic Materials ◽  
High Performance ◽  
High Density ◽  
Detonation Performance

Energetic materials, comprising furoxan and 1,2,4-oxadiazole backbones, were synthesized by nitrating 3,3′-bis(5-amino-1,2,4-oxadiazol-3-yl)-4,4′-azofuroxan, followed by cation metathesis, giving compounds with high density, high detonation performance and acceptable sensitivities.

Hydroxide derivatives of tetrazole: computational design approach for high-energy materials

2016 ◽  
Vol 94 (9) ◽  
pp. 738-743 ◽  
Author(s):  
Alka Devi ◽  
Vikas D. Ghule
Keyword(s):  
Energetic Materials ◽  
High Performance ◽  
Computational Design ◽  
High Energy ◽  
Heat Of Formation ◽  
Detonation Properties ◽  
Energy Materials ◽  
Explosive Power ◽  
Combustion Properties ◽  
Derivatives Of

Based on the backbone of the nitrogen-rich triazole and tetrazole structure, their N–OH derivatives were designed to improve the properties of energetic materials. This work introduces five novel nitrogen-rich derivatives and their energetic salts as high-performance compounds. Reliable methods and correlations are used to predict the heat of formation, density, detonation, and combustion properties and explosive power. The predicted energetic properties are also compared with well-known explosives, TNT, TATB, RDX, and HMX, to evaluate the performance. A majority of the designed salts exhibited high positive heats of formation, good detonation properties, and high explosive power. Ammonium, hydrazinium, and hydroxylammonium salts (1–3), which have relatively high densities (over 1.86 g/cm3), resulted in good detonation velocities (above 9.0 km/s) and pressures (above 35 GPa), making them competitive energetic materials.

Derivatives of 5-nitro-1,2,3-2H-triazole – high performance energetic materials

2013 ◽  
Vol 1 (3) ◽  
pp. 585-593 ◽  
Author(s):  
Yanqiang Zhang ◽  
Damon A. Parrish ◽  
Jean'ne M. Shreeve
Keyword(s):  
Energetic Materials ◽  
High Performance ◽  
Derivatives Of

Directed biosynthesis of novel derivatives of echinomycin. II. Purification and structure elucidation

1984 ◽  
Vol 30 (6) ◽  
pp. 730-738 ◽  
Author(s):  
D. Gauvreau ◽  
M. J. Waring
Keyword(s):  
High Performance ◽  
Reversed Phase ◽  
Aromatic Acids ◽  
Antibacterial Assay ◽  
New Antibiotics ◽  
Field Desorption Mass Spectrometry ◽  
Directed Biosynthesis ◽  
Phase Systems ◽  
Derivatives Of ◽  
Acid Precursor

New antibiotics produced by Streptomyces echinatus A8331 cultured in the presence of heterocyclic aromatic acids can be separated and purified by high-performance liquid chromatography using reversed phase columns. Natural quinoxaline antibiotics and certain quinoline derivatives can also be efficiently separated in normal phase systems. Details of purification procedures are described together with experiments to characterise the new antibiotics by field desorption mass spectrometry and proton magnetic resonance. Mono- and bis-substituted derivatives of echinomycin containing the following replacement chromophores have been isolated: 7-chloroquinoxaline-2-carbonyl, thieno[3,2-b]pyridine-5-carbonyl, and 6-methylquinoline-2-carbonyl. With a 6-methylquinoline-2-carboxylic acid precursor the analogues containing one or two replacement chromophores are each separable into two distinct components. One of the bis-substituted 6-methylquinoline products appears inactive in an antibacterial assay and behaves as a triostin analogue, presumably an immediate precursor of the corresponding echinomycin derivative.

Synthesis and Characterization of 4-(1,2,4-Triazole-5-yl)furazan Derivatives as High-Performance Insensitive Energetic Materials

2018 ◽  
Vol 24 (41) ◽  
pp. 10488-10497 ◽  
Author(s):  
Zhen Xu ◽  
Guangbin Cheng ◽  
Hongwei Yang ◽  
Jiaheng Zhang ◽  
Jean'ne M. Shreeve
Keyword(s):  
Energetic Materials ◽  
High Performance ◽  
Synthesis And Characterization
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