Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 25, Issue 28, Pages 18523-18544Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cp02121a
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In recent years, azole-rich energetic compounds have become a research hotspot due to their excellent properties. This review provides a comprehensive summary of the physicochemical and energetic properties of various energetic materials, emphasizing the relationship between thermal stability and the structural, physicochemical, and energetic properties of azole-rich energetic compounds. Five aspects, including functional group modification, bridging, preparation of energetic salts, energetic metal-organic frameworks (EMOFs), and co-crystals, can be considered to improve the thermal stability of compounds. It has been demonstrated that increasing the strength and number of hydrogen bonds of azoles and expanding the π-π stacking area are the key factors to improve thermal stability, which offers a valuable way to develop energetic materials with higher energy and thermal stability.
Energetic compounds, as a type of special material, are widely used in the fields of national defense, aerospace and exploration. Their research and production have received growing attention. Thermal stability is a crucial factor for the safety of energetic materials. Azole-rich energetic compounds have emerged as a research hotspot in recent years owing to their excellent properties. Due to the aromaticity of unsaturated azoles, many azole-rich energetic compounds have significant thermal stability, which is one of the properties that researchers focus on. This review presents a comprehensive summary of the physicochemical and energetic properties of various energetic materials, highlighting the relationship between thermal stability and the structural, physicochemical, and energetic properties of azole-rich energetic compounds. To improve the thermal stability of compounds, five aspects can be considered, including functional group modification, bridging, preparation of energetic salts, energetic metal-organic frameworks (EMOFs) and co-crystals. It was demonstrated that increasing the strength and number of hydrogen bonds of azoles and expanding the & pi;-& pi; stacking area are the key factors to improve thermal stability, which provides a valuable way to develop energetic materials with higher energy and thermal stability.
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