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Structural Chemistry

, Volume 30, Issue 6, pp 2401–2408 | Cite as

Dinitromethyl, fluorodinitromethyl derivatives of RDX and HMX as high energy density materials: a computational study

  • He LinEmail author
  • Qing Zhu
  • Chuan Huang
  • Dong-Dong Yang
  • Nan Lou
  • Shun-Guan Zhu
  • Hong-Zhen Li
Original Research
  • 153 Downloads

Abstract

The development of high energy density materials (HEDMs) with balanced detonation energy and sensitivity is an urgent task in the current energetic material field. Here, by means of density functional theory (DFT) computations, we systematically exploited 14 cyclic nitramines in the framework of 1,3,5-trinitro-1,3,5-triazine (RDX) and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) as HEDMs. Our results demonstrate that although the -CF(NO2)2 derivatives exhibit negative heats of formations; all designed compounds have high crystal densities (1.83–2.09 g/cm3), good thermal stability (bond dissociation energy > 143 kJ/mol), and remarkable detonation performance (detonation velocities, 8.59–9.31 km/s). More importantly, compounds A1, B1, C1, and D1 exhibit lower impact sensitivity than 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20). Given these properties, it could be expected that compounds A1, B1, C1, and D1 are potential HEDM candidates with acceptable sensitivity.

Keywords

Cyclic nitramine High energy density materials Density functional theory Detonation performance Sensitivity 

Notes

Funding information

This work is supported by the Nature Science Foundation of Shandong province (Grant Nos. ZR2019BA033, ZR2017PA002, and ZR2016BP09) and the National Nature Science Foundation of China (Grant Nos. 11647159, 11772308, and 21805256).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • He Lin
    • 1
    Email author
  • Qing Zhu
    • 2
  • Chuan Huang
    • 2
  • Dong-Dong Yang
    • 1
  • Nan Lou
    • 1
  • Shun-Guan Zhu
    • 3
  • Hong-Zhen Li
    • 2
  1. 1.School of Chemistry and Materials ScienceLudong UniversityYantaiChina
  2. 2.Institute of Chemical MaterialsChina Academy of Engineering Physics (CAEP)MianyangChina
  3. 3.School of Chemical EngineeringNanjing University of Science and TechnologyNanjingChina

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