Journal of Physical Chemistry A, volume 113, issue 15, pages 3677-3684

Theoretical Study of the 5-Aminotetrazole Thermal Decomposition

Publication typeJournal Article
Publication date2009-03-26
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor2.9
ISSN10895639, 15205215
Physical and Theoretical Chemistry
Abstract
The thermal decomposition of 5-aminotetrazole was studied theoretically using the G3 multilevel procedure and DFT B3LYP technique. The unimolecular primary decomposition reactions of the three most stable isomers of 5-ATZ were studied in the gas phase and in the melt using a simplified model of the latter. The influence of the melt on the elementary reaction barrier was taken into account by the calculation of the solvation free energies using the PCM model. In contrast to all previous publications, we considered the bimolecular reactions of 5-ATZ and demonstrated that they are very important especially in the condensed phase. It was found that the imino form undergoes fast isomerization to the amino form in the H-bonded dimers and does not participate in the 5-ATZ thermolysis. On the contrary, amino and, probably, the 2H isomer are the main isomers of 5-ATZ in the melt and gas phase. The N(2) elimination reaction was found to be the dominant unimolecular channel of the amino and 2H isomer decomposition in both the gas phase and melt. The significant lowering of the activation barriers of decomposition reactions in H-bonded dimers was found. In agreement with the existing experimental data, HN(3) elimination dominates for some of the considered complexes. It was concluded that the initial stages of thermolysis of 5-ATZ cannot be satisfactory described by the simple unimolecular reactions proposed in the literature.

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Basova T. V., Gritsan N. Theoretical Study of the 5-Aminotetrazole Thermal Decomposition // Journal of Physical Chemistry A. 2009. Vol. 113. No. 15. pp. 3677-3684.
GOST all authors (up to 50) Copy
Basova T. V., Gritsan N. Theoretical Study of the 5-Aminotetrazole Thermal Decomposition // Journal of Physical Chemistry A. 2009. Vol. 113. No. 15. pp. 3677-3684.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/jp900285y
UR - https://doi.org/10.1021/jp900285y
TI - Theoretical Study of the 5-Aminotetrazole Thermal Decomposition
T2 - Journal of Physical Chemistry A
AU - Basova, Tamara V.
AU - Gritsan, N.P
PY - 2009
DA - 2009/03/26 00:00:00
PB - American Chemical Society (ACS)
SP - 3677-3684
IS - 15
VL - 113
SN - 1089-5639
SN - 1520-5215
ER -
BibTex |
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BibTex Copy
@article{2009_Basova,
author = {Tamara V. Basova and N.P Gritsan},
title = {Theoretical Study of the 5-Aminotetrazole Thermal Decomposition},
journal = {Journal of Physical Chemistry A},
year = {2009},
volume = {113},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/jp900285y},
number = {15},
pages = {3677--3684},
doi = {10.1021/jp900285y}
}
MLA
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MLA Copy
Basova, Tamara V., and N.P Gritsan. “Theoretical Study of the 5-Aminotetrazole Thermal Decomposition.” Journal of Physical Chemistry A, vol. 113, no. 15, Mar. 2009, pp. 3677-3684. https://doi.org/10.1021/jp900285y.
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