ChemPlusChem, volume 84, issue 10, pages 1567-1577

1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity

Publication typeJournal Article
Publication date2019-10-01
Journal: ChemPlusChem
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.4
ISSN21926506, 21926506
General Chemistry
Abstract

A family of mono or di(1,2,4‐oxadiazole)‐bridged polynitropyrazole derivatives with C‐nitro/N‐nitro functionalities is reported. All compounds were fully characterized by IR, NMR (1H, 13C), elemental analysis and differential scanning calorimetry (DSC). The solid‐state structure features were further investigated with X‐ray diffraction. Of these, compounds 3,5‐bis(3,4‐dinitro‐1H‐pyrazol‐5‐yl)‐1,2,4‐oxadiazole (3 a) and 5,5′‐bis(3,4‐dinitro‐1H‐pyrazol‐5‐yl)‐3,3′‐bi(1,2,4‐oxadiazole) (3 b) possess high thermal stability (3 a: Tdec=274 °C; 3 b: Tdec=272 °C), sensitivity (IS >30 J, FS >360 N) and comparable detonation properties (3 a: Dv=8741 m s−1, P=34.0 GPa; 3 b: Dv=8685 m s−1, P=33.4 Gpa) to RDX. In addition, 3,5‐bis(4‐nitro‐1H‐pyrazol‐3‐yl)‐1,2,4‐oxadiazole (4 a) and 5,5′‐bis(4‐nitro‐1H‐pyrazol‐3‐yl)‐3,3′‐bi(1,2,4‐oxadiazole) (4 b) have high decomposition temperature (4 a: Tdec=314 °C; 4 b: Tdec=317 °C), low sensitivity (IS >40 J; FS>360 N) and superior detonation performances (4 a: Dv=8027 m s−1, P=26.4 GPa; 4 b: Dv=7991 m s−1, P=25.2 Gpa) than conventional heat‐resistant explosive hexanitrostilbene (HNS: Tdec=318 °C; IS=5 J; FS=240 N; Dv=7612 m s−1, P=24.3 GPa), thus suggesting their potential application as heat‐resistant explosives.

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Yan T., Cheng G., Yang H. 1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity // ChemPlusChem. 2019. Vol. 84. No. 10. pp. 1567-1577.
GOST all authors (up to 50) Copy
Yan T., Cheng G., Yang H. 1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity // ChemPlusChem. 2019. Vol. 84. No. 10. pp. 1567-1577.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1002/cplu.201900454
UR - https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.201900454
TI - 1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity
T2 - ChemPlusChem
AU - Yan, Tingou
AU - Cheng, Guangbin
AU - Yang, Hongwei
PY - 2019
DA - 2019/10/01 00:00:00
PB - Wiley
SP - 1567-1577
IS - 10
VL - 84
SN - 2192-6506
SN - 2192-6506
ER -
BibTex |
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BibTex Copy
@article{2019_Yan,
author = {Tingou Yan and Guangbin Cheng and Hongwei Yang},
title = {1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity},
journal = {ChemPlusChem},
year = {2019},
volume = {84},
publisher = {Wiley},
month = {oct},
url = {https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.201900454},
number = {10},
pages = {1567--1577},
doi = {10.1002/cplu.201900454}
}
MLA
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Yan, Tingou, et al. “1,2,4‐Oxadiazole‐Bridged Polynitropyrazole Energetic Materials with Enhanced Thermal Stability and Low Sensitivity.” ChemPlusChem, vol. 84, no. 10, Oct. 2019, pp. 1567-1577. https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.201900454.
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