TY - JOUR
T1 - Alkaline earth metal salts of 3,6-dinitramino-1,2,4,5-tetrazine
T2 - Prospective candidates for environmentally friendly energetic applications
AU - Ren, Jie
AU - Zhang, Tianhe
AU - Li, Zhimin
AU - Wang, Lin
AU - Zhang, Tonglai
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/12
Y1 - 2019/12
N2 - Four alkaline earth metal salts (Mg2+(1), Ca2+(2), Sr2+(3), Ba2+(4)) of 3,6-dinitramino-1,2,4,5-tetrazine were synthesized and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. Structural analysis revealed that all compounds have differently reticular structures, where each metal is bound in a specific and characteristic fashion. Thermal behaviors investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) show that all of these salts possess better thermal stability compared to neutral 3,6-dinitramino-1,2,4,5-tetrazine, with the thermal decomposition temperatures of 162 °C (1), 262.1 °C (2), 268 °C (3) and 267 °C (4), respectively, due to their plenty of coordinate bonds and intermolecular H-bonds. Besides, the kinetic parameters have been determined by non-isothermal kinetics at various heating rates. All these salts are insensitive to the stimulation of impact and friction (impact sensitivity > 40 J, friction sensitivity > 360 N), which can be considered as potential eco-friendly insensitive energetic compounds.
AB - Four alkaline earth metal salts (Mg2+(1), Ca2+(2), Sr2+(3), Ba2+(4)) of 3,6-dinitramino-1,2,4,5-tetrazine were synthesized and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. Structural analysis revealed that all compounds have differently reticular structures, where each metal is bound in a specific and characteristic fashion. Thermal behaviors investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) show that all of these salts possess better thermal stability compared to neutral 3,6-dinitramino-1,2,4,5-tetrazine, with the thermal decomposition temperatures of 162 °C (1), 262.1 °C (2), 268 °C (3) and 267 °C (4), respectively, due to their plenty of coordinate bonds and intermolecular H-bonds. Besides, the kinetic parameters have been determined by non-isothermal kinetics at various heating rates. All these salts are insensitive to the stimulation of impact and friction (impact sensitivity > 40 J, friction sensitivity > 360 N), which can be considered as potential eco-friendly insensitive energetic compounds.
KW - Crystal
KW - Energetic alkaline earth metal salts
KW - Kinetics
KW - Thermal behaviors
KW - s-tetrazine
UR - http://www.scopus.com/inward/record.url?scp=85072276292&partnerID=8YFLogxK
U2 - 10.1016/j.tca.2019.178391
DO - 10.1016/j.tca.2019.178391
M3 - Article
AN - SCOPUS:85072276292
SN - 0040-6031
VL - 682
JO - Thermochimica Acta
JF - Thermochimica Acta
M1 - 178391
ER -