Verification of the mechanisms of thermal transformations of 1,1-diamino-2,2-dinitroethylene (DADNE) based on quantum chemical calculations, thermal analysis and mass spectroscopy of gaseous products
B. E. Krisyuk, Timofey M. Sypko, В. В. Захаров, Н. В. Чуканов
Abstract
Thermolysis of 1,1-diamino-2,2-dinitroethylene (1) has been investigated in the temperatures 303–623 K by means of differential scanning calorimetry and thermogravimetry, with mass-spectroscopic registration of gaseous products. Under these conditions, thermal decomposition of 1 proceeds in two stages – mass loss curves and ionic currents have maxima at 508.2 and 558.8 K. Quantum-chemical modeling of thermal transformation of 1 showed that products with the masses of 42 can be formed via the channel involving hydrogen transfer to carbon, and products with the masses of 17 and 43 can be formed via the decomposition of various aci forms of 1.
Topics & Concepts
ThermogravimetryThermal decompositionDifferential scanning calorimetryChemistryIonic bondingMass spectrometryDecompositionPhysical chemistryAnalytical Chemistry (journal)ThermalHydrogenMass spectrumInorganic chemistryThermodynamicsOrganic chemistryIonPhysicsChromatographyEnergetic Materials and CombustionThermal and Kinetic AnalysisChemical Thermodynamics and Molecular Structure