Nitrogen-rich energetic materials comprised of a combination of several heterocyclic subunits retain their leading position in the field of materials science. In this regard, a preparation of novel high-energy materials with balanced set of physicochemical properties is highly desired. Herein, we report the synthesis of a new series of energetic salts incorporating a (1,2,4-triazolyl) furoxan core and complete evaluation of their energetic properties. All target energetic materials were well characterized with IR and multinuclear NMR spectroscopy and elemental analysis, while compound was further characterized by single-crystal X-ray diffraction study. Prepared nitrogen-rich salts have high thermal stability (up to 232°C), good experimental densities (up to 1.80 g cm) and high positive enthalpies of formation (344-1,095 kJ mol). As a result, synthesized energetic salts have good detonation performance ( = 7.0-8.4 km s; = 22-32 GPa), while their sensitivities to impact and friction are quite low.
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http://dx.doi.org/10.3389/fchem.2022.1012605 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, SAR, China.
Advanced energetic composites possess promising properties and wide-ranging applications in explosives and propellants. Nonetheless, most metal-based energetic composites present significant challenges due to surface oxidation and low-pressure output. This study introduces a facile method to develop energetic composites Cutztr@AP through the intermolecular assembly of nitrogen-rich energetic coordination polymers and high-energy oxidant ammonium perchlorate (AP).
View Article and Find Full Text PDFPhys Chem Chem Phys
December 2024
School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, China.
Nitrogen-rich materials have attracted considerable attention in recent years as potential high-energy-density materials (HEDMs). However, their metastability poses substantial challenges for synthesis under ambient conditions. Here, we employ a novel strategy to explore energetic and structural features of the nitrogen-rich BN ( = 4-16) clusters by doping with the light non-metal boron.
View Article and Find Full Text PDFOrg Lett
December 2024
Energetic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
In this study, we synthesized trifluoromethyl-substituted bis-triazole nitrogen-rich compounds (-) using a simple, cost-effective method. The newly made compounds were characterized using NMR, IR, elemental analysis, TGA-DSC, and single-crystal X-ray diffraction (for compounds and ). They demonstrated high density (1.
View Article and Find Full Text PDFRSC Adv
November 2024
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences Beijing 100012 China
While thermal decomposition temperature ( ) is one of the most important indexes for energetic materials, the most common way of determining and evaluating requires laboratory experiments that are complicated, time-consuming and expensive. In the present study, the quantitative structure-property relationship (QSPR) model of for 21 nitrogen-rich energetic ionic salts was built and used for prediction through 13 descriptors and principal component analysis. The relatively small dataset of 21 samples may lead to overfitting.
View Article and Find Full Text PDFChemphyschem
November 2024
Laboratory for Energetic and Energy Materials Research (LEEMR), Department of Chemistry, National Institute of Technology Calicut (NITC), NITC Campus P. O., Calicut, Kerala, 673601, India.
Nitrogen-rich heterocycles, particularly tetrazole-based high-energy density materials (HEDMs) offer high performance, low sensitivity, and are eco-friendly. Despite the diversity of nitrogen-rich energetic heterocycles, many are sensitive to external stimuli, and the introduction of a methylene, ethylene, or C-C linkage between nitrogen-rich heterocycles is a successful strategy to improve mechanical sensitivity and thermal stability. Understanding the potential anomalous thermal or kinetic behavior of such molecules is crucial for the design of new HEDMs and practical applications of these molecules.
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