Abstract
The new energetic compound 1H-pyrazole-1-carboxamidine dinitramide (PACADN) was synthesized by the reaction of silver dinitramide with 1H-pyrazole-1-carboxamidine hydrochloride. Its structure was confirmed by single-crystal X-ray diffraction, elemental analysis and Fourier transform infrared, ultraviolet–visible and nuclear magnetic resonance spectroscopy analyses. PACADN crystallizes in the orthorhombic space group Pnna. The thermal decomposition was studied with differential scanning calorimetry, thermogravimetry analysis and thermogravimetric tandem infrared spectrum. The results indicated that PACADN exhibits good resistance to thermal decomposition up to 433 K and has 90.24 % mass loss between 433 and 523 K by undergoing exothermic decomposition. The kinetic parameters of the thermal decomposition of PACADN were also obtained from the derivative thermogravimetry analysis data using Kissinger’s method, with E a = 143.2 kJ mol−1. Moreover, the detonation velocity and detonation pressure of PACADN were calculated as 7.2 km s−1 and 21 GPa by applying the Kamlet–Jacobs (as follows). $$ \begin{aligned} D & = 1.01(N\overline{M}^{1/2} Q^{1/2} )^{1/2} (1 + 1.3\rho ) \\ P & = 1.558\rho^{2} N\overline{M}^{1/2} Q^{1/2} .\\ \end{aligned} $$
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.