Abstract
Context
This article presents a theoretical study of three insensitive high explosives based on the FOX-7 moiety. A few heterocyclic five- and six-member nitrogen-rich compounds have been created in an effort to better serve as a potential insensitive high explosive. It has been addressed how these molecules should be optimised in terms of stability, sensitivity, detonation properties, IR frequency computations, formal charge calculations, and more. Comprehensive research has been done on these compounds’ molecular density and energy of activation associated with the conversion from nitro (C-NO2) to nitrito (C-ONO) during the initial phase of their decomposition. The bond dissociation energy along with BSSE correction for the most reactive C-NO2 bond is examined. The two designed molecules have intra-molecular hydrogen-bonding while other does not have any intra-molecular hydrogen-bonding. The newly designed compounds exhibit higher detonation values compared to TNT, which suggests that they ought to be prepared in a laboratory by skilled experimenters.
Methods
The stability of the C-NO2 link and the covalent character of the bonds have both been calculated using the atoms in molecule (AIM) method. The electronic structure calculations have been recovered at DFT method with aug-cc-pVDZ basis set using the Gaussian-16 quantum chemistry programme.
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All data generated or analysed during this study are included in this article.
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Acknowledgements
SG is very much thankful to the National Institute of Technology Agartala and University of Hyderabad for computational facilities. This work is also supported by the NIT Agartala.
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C.K.Das: perform the work and analyse the work; M.S.Manna: perform the work and analsze the work; M. Roy: formal analysis and writing the manuscript; N. Das: perform the work; N.B. Nandi: formal analysis; S.Ghanta: design the work, checking the results, investigation, writing—review and editing.
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Das, C.K., Manna, M.S., Roy, M. et al. Design of insensitive high explosives based on FOX-7: a theoretical prospectives. J Mol Model 29, 355 (2023). https://doi.org/10.1007/s00894-023-05769-0
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DOI: https://doi.org/10.1007/s00894-023-05769-0