Rational Detection Schemes for TATP Nato Advanced Research Workshop

Faina Dubnikova, Ronnie Kosloff, Yehuda Zeiri

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Detection of improvised explosives such as triacetonetriperoxide (TATP) requires detailed knowledge of its chemical and physical properties. Electronic structure calculations were employed to study the properties of the explosives TATP and diacetonediperoxide (DADP). The calculated results were compared to available experimental data. The lowest energy structure, vibrational spectrum and thermal decomposition mechanism of TATP were examined. The applicability of these theoretical methods was demonstrated by the agreement between the experimental data and the calculated ground state structure as well as the vibrational IR and Raman spectra. The thermal decomposition pathway of a TATP molecule was investigated by a series of calculations aimed to identify the transition states along the decomposition pathway, the associated intermediate fragments and the final decomposition products. The initial chemical events that take place during detonation of bulk triacetonetriperoxide were studied by additional calculations were based on molecular dynamics (MD) simulations. In these simulations a reactive force field was used, which has been extended to reproduce the quantum mechanics (QM)-derived relative energies of the reactants, products, intermediates and transition states related to the TATP unimolecular decomposition.

Original languageEnglish
Title of host publicationDetection and Disposal of Improvised Explosives
PublisherSpringer Netherlands
Pages105-112
Number of pages8
ISBN (Electronic)9781402048876
ISBN (Print)1402048858, 9781402048852
DOIs
StatePublished - 21 Dec 2006
Externally publishedYes

Publication series

NameNATO Security through Science Series B: Physics and Biophysics
ISSN (Print)1871-465X

Keywords

  • Improvised explosives
  • Molecular dynamics
  • Remote detection
  • Triacetone-triperoxide

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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