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- Title
Synthesis and Characterization of 1,5-Dinitro-2,6-bis(trinitromethyl)-3a,4a,7a,8a-tetrahydro-[1,4]dioxino[2,3-d:5,6-d′]diimidazole (DNTNDI).
- Authors
Wu, Minjie; Chen, Shusen; Shu, Qinghai; Li, Lijie; Jin, Shaohua
- Abstract
The polynitro imidazole derivative 1,5-dinitro-2,6-bis(trinitromethyl)-3a,4a,7a,8a-tetrahydro-[1,4]dioxino[2,3-d:5,6-d′]diimidazole (DNTNDI) was synthesized through nitration of 2-(dinitromethylene)-1H-imidazol-4-ol in HNO3/Ac2O followed by cyclization of the di-enol. It was characterized by NMR, IR, elemental analysis, and single-crystal X-ray diffraction analysis. Compound DNTNDI crystallizes in the orthorhombic space group P2(1)2(1)2(1). The thermal decomposition was studied with thermogravimetry/derivative thermogravimetry (TG/DTG) in a nitrogen atmosphere with a heating rate of 5 K min−1. The TG/DTG analysis indicated that DNTNDI has 97.64 % mass loss between 127 °C and 173 °C by undergoing exothermic decomposition. The density of DNTNDI was determined as 1.906 g cm−3 at 293 K with an Ultrapycno 1000 Pycnometer. The denotation velocity and denotation pressure of DNTNDI were calculated as 9325 m s−1 and 40 GPa by applying the LOTUSES (version 1.4) code, respectively. The oxygen balance of DNTNDI is 0 and its oxygen content amounts to 51.78 %, which is superior to that of new generation of chlorine-free oxidizer ammonium dinitramide (ADN).
- Subjects
CHEMICAL synthesis; IMIDAZOLES; OXIDIZING agents; EXPLOSIVES; RING formation (Chemistry); NUCLEAR magnetic resonance; THERMOGRAVIMETRY
- Publication
Propellants, Explosives, Pyrotechnics, 2013, Vol 38, Issue 5, p658
- ISSN
0721-3115
- Publication type
Article
- DOI
10.1002/prep.201300019