Polyhedron p. 169 - 175 (2019)
Update date:2022-08-11
Topics:
Chang, Shuai
Wei, Shilong
Zhao, Junlong
Zhai, Lianjie
Xia, Zhengqiang
Wang, Bozhou
Yang, Qi
Chen, Sanping
Gao, Shengli
It is an important issue to balance energy and sensitivity in the construction of high energy materials. Herein, two furozacycline energetic complexes ([Zn(HTZF)(H2O)3]·H2O (1) and [Co(HTZF)(H2O)3]·2H2O (2) (HTZF = 3-hydroxyl-4-(tetrazol-5-yl)furazan)) were hydrothermally synthesized. Single crystal X-ray diffraction shows that in 1, energetic ligand adopting bidentate chelating coordination mode coordinates to Zn2+. The coordinated units Zn(HTZF)2(H2O)2 and Zn(H2O)4 are alternatively linked to an infinite chain through nitrogen atom in furazan group, and with the aid of hydrogen bonding interaction, forming 3D supramolecule structure. Different in 2, ligand coordinates to Co2+ in bidentate chelating coordination and bridging coordination modes. π?π interaction further supports 3D framework stabilization. The thermal decomposition temperature of 1 and 2 are up to 293.0 °C and 295.8 °C, respectively. The heat of detonation (Q), detonation velocity (D), and detonation pressure (P), were evaluated to be, for 1: 1.123 kcal·g?1, 7.971 km·s?1 and 30.8 GPa; for 2: 2.165 kcal·g?1, 8.846 km·s?1 and 35.3 GPa. 1 and 2 are insensitive to impact and friction. As combustion promoter, both of complexes can effectively accelerate the thermal decomposition of ammonium perchlorate (AP).
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