TY - JOUR
T1 - A heat-resistant explosive featuring an N,N′-ethylene bridged 1,2,4-1H-triazole fused ring
AU - Wang, Shaoqing
AU - Li, Congcong
AU - Li, Shaojia
AU - Yin, Hongquan
AU - Ma, Qing
AU - Chen, Fu Xue
N1 - Publisher Copyright:
© 2024 The Royal Society of Chemistry.
PY - 2024/4/15
Y1 - 2024/4/15
N2 - Six energetic compounds bridged by N,N′-alkyl groups were synthesized in a straightforward manner in 1-3 steps from 3-nitro-1H-1,2,4-triazol-5-amine (ANTA). Among these compounds, 2,7-dinitro-10,11-dihydrobis([1,2,4]triazolo)[5,1-c:1′,5′-g][1,2,4,7]tetrazocine (2) exhibits a decomposition temperature exceeding 300 °C (Td(onset) = 319 °C), with superior density and detonation performance (ρ = 1.83 g cm−3, Dv = 8157 m s−1) to HNS. N,N′-(Methylenebis(3-nitro-1H-1,2,4-triazole-1,5-diyl))dinitramide (5) has the highest density (ρ = 1.91 g cm−3) with the best comprehensive detonation performance (Dv = 9079 m s−1, P = 36.1 GPa), and is comparable to HMX. Insight into the relationship between stability and structure revealed that 1,2,4-triazole-based compounds with an N,N′-ethylene bridge consistently exhibit superior stability compared to those with an N,N′-methylene bridge. This provides a new way to design fused ring explosives with high stability.
AB - Six energetic compounds bridged by N,N′-alkyl groups were synthesized in a straightforward manner in 1-3 steps from 3-nitro-1H-1,2,4-triazol-5-amine (ANTA). Among these compounds, 2,7-dinitro-10,11-dihydrobis([1,2,4]triazolo)[5,1-c:1′,5′-g][1,2,4,7]tetrazocine (2) exhibits a decomposition temperature exceeding 300 °C (Td(onset) = 319 °C), with superior density and detonation performance (ρ = 1.83 g cm−3, Dv = 8157 m s−1) to HNS. N,N′-(Methylenebis(3-nitro-1H-1,2,4-triazole-1,5-diyl))dinitramide (5) has the highest density (ρ = 1.91 g cm−3) with the best comprehensive detonation performance (Dv = 9079 m s−1, P = 36.1 GPa), and is comparable to HMX. Insight into the relationship between stability and structure revealed that 1,2,4-triazole-based compounds with an N,N′-ethylene bridge consistently exhibit superior stability compared to those with an N,N′-methylene bridge. This provides a new way to design fused ring explosives with high stability.
UR - http://www.scopus.com/inward/record.url?scp=85190882152&partnerID=8YFLogxK
U2 - 10.1039/d4nj00898g
DO - 10.1039/d4nj00898g
M3 - Article
AN - SCOPUS:85190882152
SN - 1144-0546
VL - 48
SP - 7562
EP - 7565
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 17
ER -