Synthesis and characterization of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole fused-ring energetic compounds

Hui Dou; Peng Chen; Chun lin He; Si ping Pang

doi:10.1016/j.enmf.2022.07.002

Synthesis and characterization of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole fused-ring energetic compounds

Hui Dou
, Peng Chen
, Chun lin He^*
, Si ping Pang^*

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Oxygen plays an important role in improving the oxygen balances and densities of energetic compounds. In this study, a series of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole building block-based energetic compounds (3–8) were synthesized and fully characterized. In addition, the structures of compounds 3–7 were determined using single-crystal X-ray diffraction. The properties of compounds were evaluated based on their density, differential scanning calorimetry, impact and friction sensitivities, heat of formation, and detonation performances. The insensitive properties of compound 6 (IS > 40 J, FS > 360 N) and its detonation properties (8682 m·s⁻¹, 32.8 GPa), which are comparable to those of RDX (8795 m·s⁻¹, 34.9 GPa), demonstrate that it is effective to improve the properties of energetic compounds by constructing oxygen-containing fused-ring backbone.

Original language	English
Pages (from-to)	154-160
Number of pages	7
Journal	Energetic Materials Frontiers
Volume	3
Issue number	3
DOIs	https://doi.org/10.1016/j.enmf.2022.07.002
Publication status	Published - Sept 2022

Keywords

Detonation performance
Energetic compounds
Fused ring
Imidazo[1,2-d][1,2,4] oxadiazole

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10.1016/j.enmf.2022.07.002

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title = "Synthesis and characterization of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole fused-ring energetic compounds",

abstract = "Oxygen plays an important role in improving the oxygen balances and densities of energetic compounds. In this study, a series of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole building block-based energetic compounds (3–8) were synthesized and fully characterized. In addition, the structures of compounds 3–7 were determined using single-crystal X-ray diffraction. The properties of compounds were evaluated based on their density, differential scanning calorimetry, impact and friction sensitivities, heat of formation, and detonation performances. The insensitive properties of compound 6 (IS > 40 J, FS > 360 N) and its detonation properties (8682 m·s−1, 32.8 GPa), which are comparable to those of RDX (8795 m·s−1, 34.9 GPa), demonstrate that it is effective to improve the properties of energetic compounds by constructing oxygen-containing fused-ring backbone.",

keywords = "Detonation performance, Energetic compounds, Fused ring, Imidazo[1,2-d][1,2,4] oxadiazole",

author = "Hui Dou and Peng Chen and He, \{Chun lin\} and Pang, \{Si ping\}",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

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doi = "10.1016/j.enmf.2022.07.002",

language = "English",

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TY - JOUR

T1 - Synthesis and characterization of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole fused-ring energetic compounds

AU - Dou, Hui

AU - Chen, Peng

AU - He, Chun lin

AU - Pang, Si ping

PY - 2022/9

Y1 - 2022/9

N2 - Oxygen plays an important role in improving the oxygen balances and densities of energetic compounds. In this study, a series of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole building block-based energetic compounds (3–8) were synthesized and fully characterized. In addition, the structures of compounds 3–7 were determined using single-crystal X-ray diffraction. The properties of compounds were evaluated based on their density, differential scanning calorimetry, impact and friction sensitivities, heat of formation, and detonation performances. The insensitive properties of compound 6 (IS > 40 J, FS > 360 N) and its detonation properties (8682 m·s−1, 32.8 GPa), which are comparable to those of RDX (8795 m·s−1, 34.9 GPa), demonstrate that it is effective to improve the properties of energetic compounds by constructing oxygen-containing fused-ring backbone.

AB - Oxygen plays an important role in improving the oxygen balances and densities of energetic compounds. In this study, a series of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole building block-based energetic compounds (3–8) were synthesized and fully characterized. In addition, the structures of compounds 3–7 were determined using single-crystal X-ray diffraction. The properties of compounds were evaluated based on their density, differential scanning calorimetry, impact and friction sensitivities, heat of formation, and detonation performances. The insensitive properties of compound 6 (IS > 40 J, FS > 360 N) and its detonation properties (8682 m·s−1, 32.8 GPa), which are comparable to those of RDX (8795 m·s−1, 34.9 GPa), demonstrate that it is effective to improve the properties of energetic compounds by constructing oxygen-containing fused-ring backbone.

KW - Detonation performance

KW - Energetic compounds

KW - Fused ring

KW - Imidazo[1,2-d][1,2,4] oxadiazole

UR - https://www.scopus.com/pages/publications/85135291641

U2 - 10.1016/j.enmf.2022.07.002

DO - 10.1016/j.enmf.2022.07.002

M3 - Article

AN - SCOPUS:85135291641

SN - 2666-6472

VL - 3

SP - 154

EP - 160

JO - Energetic Materials Frontiers

JF - Energetic Materials Frontiers

IS - 3

ER -

Synthesis and characterization of oxygen-containing imidazo[1,2-d][1,2,4]oxadiazole fused-ring energetic compounds

Abstract

Keywords

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