Russian Journal of Physical Chemistry B

, Volume 13, Issue 2, pp 297–304 | Cite as

Thermal Conversions of 2,4-Bis(N,N-Dimethylamino)-6-Trinitromethyl-1,3,5-Triazine

  • V. V. Zakharov
  • N. V. ChukanovEmail author
  • G. V. Shilov
  • G. V. Malkov
  • A. V. Shastin
  • B. L. Korsunskiy
Combustion, Explosion, and Shock Waves


To predict the thermal stability of high-energy triazine derivatives and the compatibility of trini-tromethyl substituents with dialkylamino groups in particular, thermal conversions of 2,4-bis(N, N-dimethyl-amino)-6-trinitromethyl-1,3,5-triazine (I) have been investigated in a temperature range of 170–623 K via differential thermal analysis, mass spectrometry, and single-crystal and powder X-ray diffraction. Compound I is characterized by a strong anisotropy of temperature expansion, and at 365 K it undergoes α-I → β-I polymorphic transformation that is preceded by an abrupt drop in density. A polymorphic transformation occurs with the destruction of crystals and is accompanied by the partial mechanochemical decomposition of I. The melting of I at about 396 K results in abrupt acceleration of its decomposition. The thermal effects of the polymorphic transformation, melting, and decomposition of I have been measured. The activation parameters of decomposition of I in melt have been estimated based on the data of differential scanning calorimetry. The composition of the gaseous products being formed has been determined, and mechanism of decomposition of I has been proposed, according to which the dimethylamino group is oxidized by the nitro group at the limiting stage of the process.


high-energy substances 2,4-bis(N,N-dimethylamino)-6-trinitromethyl-1,3,5-triazine thermal decomposition polymorphic transformations differential scanning calorimetry thermogravimetry mass spectrometry X-ray diffraction 


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. V. Zakharov
    • 1
  • N. V. Chukanov
    • 1
    Email author
  • G. V. Shilov
    • 1
  • G. V. Malkov
    • 1
  • A. V. Shastin
    • 1
  • B. L. Korsunskiy
    • 1
  1. 1.Institute of Problems of Chemical PhysicsRussian Academy of SciencesChernogolovka, Moscow oblastRussia

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