Abstract:
:The heats of formation (HOFs), electronic structure, energetic properties, and thermal stabilities for a series of 1,4-bis(1-azo-2,4-dinitrobenzene)-iminotetrazole derivatives with different substituents and substitution positions and numbers of nitrogen atoms in the nitrobenzene rings were studied using the DFT-B3LYP method. All the substituted compounds have higher HOFs than their parent compounds. As the number of nitrogen atoms in the nitrobenzene ring increases, the HOFs of the derivatives with the same substituent rise gradually. Replacing carbon atoms in the nitrobenzene with nitrogen atoms to form N-N bonds is very helpful in improving their HOFs. Most of the substituted compounds have higher HOMO-LUMO gaps than the corresponding unsubstituted compounds. Substitution of the -NO₂, -NF₂, or -ONO₂ group and an increase in the number of nitrogen atoms in the nitrobenzene rings are useful for enhancing their detonation performance. The substituents' substitution is not favorable for improving thermal stability. Considering detonation performance and thermal stability, five compounds may be considered potential candidates for high energy density compounds (HEDCs).
journal_name
J Mol Modeljournal_title
Journal of molecular modelingauthors
Wu Q,Pan Y,Zhu W,Xiao Hdoi
10.1007/s00894-013-1756-5subject
Has Abstractpub_date
2013-04-01 00:00:00pages
1853-64issue
4eissn
1610-2940issn
0948-5023journal_volume
19pub_type
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