TY - JOUR
T1 - Thermostable Insensitive Energetic Materials Based on a Triazolopyridine Fused Framework with Alternating Nitro and Amine Groups
AU - Ran, You
AU - Xia, Honglei
AU - Song, Siwei
AU - Wang, Kangcai
AU - Zhang, Qinghua
N1 - Publisher Copyright:
© 2023 Georg Thieme Verlag. All rights reserved.
PY - 2023
Y1 - 2023
N2 - In this work, we designed and synthesized a series of novel triazolopyridine fused-ring compounds with alternating nitro and amine groups. Three compounds showed remarkable thermal stability at 256, 310, and 294 C, respectively, and a low mechanical sensitivity [impact sensitivity (IS) = 40 J, friction sensitivity (FS) = 324 N; IS = 35 J, FS = 240 N; and IS > 40 J, FS = 324 N, respectively]. Significantly, two of these compounds exhibited a better detonation performance [detonation velocity (D) = 8200 and 8335 m s.1, Detonation pressure (P) = 25.6 and 27.2 GPa, respectively] than the widely used heat-resistant explosive hexanitrostilbene (HNS; D = 7612 m s.1, P = 24.3 GPa). Additionally, a nitramine derivative displayed a detonation performance (D = 8569 m s.1, P = 31.3 GPa) similar to that of the high-energy explosive RDX. The superior properties of the materials were further confirmed by X-ray diffraction analysis and by several theoretical calculations (ESP, LOL. T, Hirshfeld surfaces, RDG, and NCI analyses). These results indicated that the three compounds might be potential candidates for use as heat-resistant energetic materials.
AB - In this work, we designed and synthesized a series of novel triazolopyridine fused-ring compounds with alternating nitro and amine groups. Three compounds showed remarkable thermal stability at 256, 310, and 294 C, respectively, and a low mechanical sensitivity [impact sensitivity (IS) = 40 J, friction sensitivity (FS) = 324 N; IS = 35 J, FS = 240 N; and IS > 40 J, FS = 324 N, respectively]. Significantly, two of these compounds exhibited a better detonation performance [detonation velocity (D) = 8200 and 8335 m s.1, Detonation pressure (P) = 25.6 and 27.2 GPa, respectively] than the widely used heat-resistant explosive hexanitrostilbene (HNS; D = 7612 m s.1, P = 24.3 GPa). Additionally, a nitramine derivative displayed a detonation performance (D = 8569 m s.1, P = 31.3 GPa) similar to that of the high-energy explosive RDX. The superior properties of the materials were further confirmed by X-ray diffraction analysis and by several theoretical calculations (ESP, LOL. T, Hirshfeld surfaces, RDG, and NCI analyses). These results indicated that the three compounds might be potential candidates for use as heat-resistant energetic materials.
KW - energetic materials
KW - explosives
KW - thermal stability
KW - triazolopyridines
UR - http://www.scopus.com/inward/record.url?scp=85175785951&partnerID=8YFLogxK
U2 - 10.1055/s-0043-1763570
DO - 10.1055/s-0043-1763570
M3 - 文章
AN - SCOPUS:85175785951
SN - 0936-5214
JO - Synlett
JF - Synlett
ER -