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Synthesis and Characteristics of Bis(2, 2‐dinitroethyl‐ N ‐nitro)ethylenediamine‐Based Energetic Salts
Author(s) -
Song Jinhong,
Zhou Zhiming,
Huang Haifeng,
Cao Dan,
Liang Lixuan,
Wang Kai,
Zhang Jun,
Zhao FenQui
Publication year - 2012
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200080
Subject(s) - ethylenediamine , chemistry , differential scanning calorimetry , detonation , yield (engineering) , nitro , thermal decomposition , decomposition , elemental analysis , spectroscopy , energetic material , standard enthalpy of formation , detonation velocity , nuclear magnetic resonance spectroscopy , analytical chemistry (journal) , inorganic chemistry , materials science , organic chemistry , thermodynamics , explosive material , physics , alkyl , quantum mechanics , metallurgy
New energetic bis(2, 2‐dinitroethyl‐ N ‐nitro)ethylenediamine‐based salts exhibiting moderate physical properties, good detonation properties, and relatively low impact sensitivities were synthesized in high yield by direct reactions of bis(2, 2‐dinitroethyl‐ N ‐nitro)ethylenediamine with organic bases. The resulting salts were fully characterized by multinuclear NMR spectroscopy ( 1 H and 13 C), vibrational spectroscopy (IR), differential scanning calorimetry (DSC), and elemental analysis. Solid‐state 15 N NMR spectroscopy was used as an effective technique to further determine the structure of some products. Thermal decomposition kinetics and several thermodynamic parameters of some salts were obtained under non‐isothermal conditions by DSC. The densities of the energetic salts paired with organic cations were in the range 1.60–1.89 g · cm –3 as measured with a gas pycnometer. Based on the measured densities and calculated heats of formation, detonation pressures and velocities were calculated using Explo 5.05 and found to be 23.6–44.8 GPa and 7790–9583 m · s –1 , respectively, which make them potentially useful as energetic materials.