Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Modeling Photolytic Decomposition of Energetically Functionalized Dodecanes

Journal Article · · Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory

The photolytic stability of explosives and energetic functional groups is of importance for those who regularly handle or are exposed to explosives in typical environmental conditions. This study models the photolytic degradation of dodecane substituted with various energetic functional groups: azide, nitro, nitrate ester, and nitramine. For the studied molecules, it was found that excitons localize on the energetic functional group, no matter where they were initially formed, and thus, the predominant degradation pathway involves the degradation of the energetic functional group. The relative trends for both 4 and 8 eV excitation energies followed with what is expected from the relative stability of the energetic functional groups to thermal and sub-shock degradation. The one notable exception was the azide functional group; more work should be done to further understand the photolytic effects on the azide functional group.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1893685
Alternate ID(s):
OSTI ID: 1876768
Report Number(s):
LA-UR-22-24079
Journal Information:
Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory, Journal Name: Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory Journal Issue: 40 Vol. 126; ISSN 1089-5639
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Predicting Trigger Bonds in Explosive Materials through Wiberg Bond Index Analysis journal November 2015
Relationship between the Bond Dissociation Energies and Impact Sensitivities of Some Nitro-Explosives journal August 2006
Correlation of Structure and Sensitivity in Inorganic Azides I Effect of Non-Bonded Nitrogen Nitrogen Distances journal June 2010
Sensitivity and Performance of Energetic Materials journal April 2016
Computational determination of effects of electric fields upon “trigger linkages” of prototypical energetic molecules journal January 2009
Collective electronic oscillators for nonlinear optical response of conjugated molecules journal August 1996
Pulse radiolysis studies on liquid alkanes and related polymers journal January 1989
Ranking explosive sensitivity with chemical kinetics derived from molecular dynamics simulations book March 2022
Artifacts due to trivial unavoided crossings in the modeling of photoinduced energy transfer dynamics in extended conjugated molecules journal December 2013
Constant temperature simulations using the Langevin equation with velocity Verlet integration journal September 1998
Recent Advances and Perspectives on Nonadiabatic Mixed Quantum–Classical Dynamics journal April 2018
Non-adiabatic Excited-State Molecular Dynamics: Theory and Applications for Modeling Photophysics in Extended Molecular Materials journal February 2020
NEXMD Software Package for Nonadiabatic Excited State Molecular Dynamics Simulations journal July 2020
Nonadiabatic Excited-State Molecular Dynamics for Open-Shell Systems journal March 2020
Nature of the Trigger Linkage in Explosive Materials Is a Charge-Shift Bond journal October 2021
Synthesis of Erythritol Tetranitrate Derivatives: Functional Group Tuning of Explosive Sensitivity journal February 2020
Photoactive High Explosives: Linear and Nonlinear Photochemistry of Petrin Tetrazine Chloride journal May 2015
Ultrafast Photodissociation Dynamics of Nitromethane journal January 2016
Ranking the Drop-Weight Impact Sensitivity of Common Explosives Using Arrhenius Chemical Rates Computed from Quantum Molecular Dynamics Simulations journal December 2019
Understanding Explosive Sensitivity with Effective Trigger Linkage Kinetics journal June 2022
Density Matrix Analysis and Simulation of Electronic Excitations in Conjugated and Aggregated Molecules journal September 2002
Properties of lead azide prepared in molten salt media journal November 1967
Development and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular model journal June 1985
Two-Dimensional Real-Space Analysis of Optical Excitations in Acceptor-Substituted Carotenoids journal November 1997
Nonadiabatic Excited-State Molecular Dynamics Modeling of Photoinduced Dynamics in Conjugated Molecules journal May 2011
Screening for energetic compounds based on 1,3-dinitrohexahydropyrimidine skeleton and 5-various explosopheres: molecular design and computational study journal October 2020
Examining the chemical and structural properties that influence the sensitivity of energetic nitrate esters journal January 2018
The effect of nitro groups on N2 extrusion from aromatic azide-based energetic materials journal January 2019
Adiabatic time-dependent density functional methods for excited state properties journal October 2002
Excitation Energy Transfer in Alkanes. I. Exciton Model journal March 1970
Excitation Energy Transfer in Alkanes. II. Experimental Demonstration journal March 1970
Vacuum Ultraviolet Photolysis of Ethane: Molecular Detachment of Hydrogen journal February 1961
Vacuum Ultraviolet Photochemistry. IV. Photolysis of Propane journal September 1962
Representation independent algorithms for molecular response calculations in time-dependent self-consistent field theories journal February 2009
Statistical mechanical theory for non-equilibrium systems. IX. Stochastic molecular dynamics journal May 2009
First-order nonadiabatic couplings from time-dependent hybrid density functional response theory: Consistent formalism, implementation, and performance journal January 2010
Nonadiabatic coupling vectors for excited states within time-dependent density functional theory in the Tamm–Dancoff approximation and beyond journal November 2010
The fluorescence and photofragmentation of liquid saturated hydrocarbons at energies above the photoionization threshold journal October 1981
Molecular dynamics with electronic transitions journal July 1990
Recursive density‐matrix‐spectral‐moment algorithm for molecular nonlinear polarizabilities journal November 1996
Identification of unavoided crossings in nonadiabatic photoexcited dynamics involving multiple electronic states in polyatomic conjugated molecules journal July 2012
Nonadiabatic excited-state molecular dynamics: Treatment of electronic decoherence journal June 2013
Experimental and theoretical study of energy transfer in a chromophore triad: What makes modeling dynamics successful? journal December 2020
Electronic Coherence and Collective Optical Excitations of Conjugated Molecules journal August 1997
Distribution and Fate of Military Explosives and Propellants in Soil: A Review journal January 2012

Similar Records

Radiolytic degradation of dodecane substituted with common energetic functional groups
Journal Article · Mon Mar 20 00:00:00 EDT 2023 · RSC Advances · OSTI ID:1962715

Understanding Trigger Linkage Dynamics in Energetic Materials Using Mixed Picramide Nitrate Ester Explosives
Journal Article · Mon Jan 06 23:00:00 EST 2025 · Journal of Physical Chemistry Letters · OSTI ID:2506993