Synthesis,Crystal Structure,and Properties of Energetic Copper(II) Complex based on 3,5‐Dinitrobenzoic Acid and 1,5‐Diaminotetrazole |
| |
| Authors: | Zhimin Li Yutao Yuan Yanqiang Zhang Long Liu Suojiang Zhang |
| |
| Institution: | 1. Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P. R. China;2. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, P. R. China;3. Laboratory of Particle Science and Engineering, Institute of Process Engineering, Beijing, P. R. China;4. +86‐10‐82544875 |
| |
| Abstract: | Energetic copper(II) complexes based on 3,5‐dinitrobenzoic acid (HDNBA) and 1,5‐diaminotetrazole (DAT), Cu(DNBA)2(H2O)2 ( 1 ) and Cu(DAT)2(DNBA)2 ( 2 ) were synthesized and characterized by elemental analysis, IR spectroscopy, single‐crystal and powder X‐ray diffraction. In both complexes, CuII was coordinated to a plane tetragon, by four oxygen atoms from two DNBA– ions and two coordinated H2O molecules for 1 , and by two oxygen atoms and two nitrogen atoms from different DNBA– ions and DAT ligands for 2 . Differential scanning calorimetry (DSC) and thermogravimetry (TG) analyses were employed to measure the thermal decomposition processes and non‐isothermal kinetics parameters of the complexes. The thermal decomposition onset temperatures of 1 and 2 are 321 and 177 °C. The apparent activation energies of the first exothermic decomposition peaks of 1 and 2 are 247.2 and 185.2 kJ · mol–1. Both 1 (35 J, > 360 N) and 2 (12.5 J, > 360 N) are less sensitive than RDX. The catalytic effects on the decomposition of ammonium perchlorate (AP) of 1 and 2 were studied by DSC. All results supported the potential applications of the energetic complexes as additives of solid rocket propellants. |
| |
| Keywords: | 1 5‐Diaminotetrazole 3 5‐Dinitrobenzoic acid Copper Energetic complexes Additives |
|
|
