TY - JOUR
T1 - Pursuing Heat-resistant and Insensitive Energetic Materials by Constructing Imino Bridged Conjugated Planar Structures
AU - Zhang, Xing
AU - Jiang, Xiue
AU - Pan, Linhu
AU - Wang, Ruihui
AU - Yang, Boqian
AU - Xia, Honglei
AU - Qi, Xiujuan
AU - Zhang, Qinghua
N1 - Publisher Copyright:
© 2025 Wiley-VCH GmbH.
PY - 2025
Y1 - 2025
N2 - Developing insensitive heat-resistant energetic materials is currently a significant challenge in the research of energetic materials. In this study, two heat-resistant energetic materials (compounds 3 and 4) were designed and prepared by incorporating imino bridged (−NH−) the fused ring of pyrazolo[1,5-a]pyrimidine. All the newly synthesized compounds exhibit excellent thermal stabilities (Td: 316.5−343.9 °C) and good detonation performances (D: 8183−8206 m s-1), as well as satisfactory sensitivities (IS > 40 J, FS > 360 N). These remarkable stabilities are attributed to the π-conjugated planar structures and strong weak interactions in crystals. The comprehensive performances of compound 4 (Td: 343.9 °C, D: 8183 m s-1, IS > 40 J, FS > 360 N) are superior to those of the widely used heat-resistant explosive 2,2′,4,4′,6,6′-hexanitrostilbene (HNS) (Td: 318 °C, D: 7612 m s-1, IS: 5 J, FS: 240 N), indicating its great potential to be used as heat-resistant and insensitive energetic materials.
AB - Developing insensitive heat-resistant energetic materials is currently a significant challenge in the research of energetic materials. In this study, two heat-resistant energetic materials (compounds 3 and 4) were designed and prepared by incorporating imino bridged (−NH−) the fused ring of pyrazolo[1,5-a]pyrimidine. All the newly synthesized compounds exhibit excellent thermal stabilities (Td: 316.5−343.9 °C) and good detonation performances (D: 8183−8206 m s-1), as well as satisfactory sensitivities (IS > 40 J, FS > 360 N). These remarkable stabilities are attributed to the π-conjugated planar structures and strong weak interactions in crystals. The comprehensive performances of compound 4 (Td: 343.9 °C, D: 8183 m s-1, IS > 40 J, FS > 360 N) are superior to those of the widely used heat-resistant explosive 2,2′,4,4′,6,6′-hexanitrostilbene (HNS) (Td: 318 °C, D: 7612 m s-1, IS: 5 J, FS: 240 N), indicating its great potential to be used as heat-resistant and insensitive energetic materials.
KW - heat-resistant energetic materials, nitrogen-rich compounds, insensitivity, imino bridge, conjugated planar structure
UR - http://www.scopus.com/inward/record.url?scp=105000847504&partnerID=8YFLogxK
U2 - 10.1002/chem.202404759
DO - 10.1002/chem.202404759
M3 - 文章
AN - SCOPUS:105000847504
SN - 0947-6539
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
ER -