Journal of Physical Chemistry A, volume 106, issue 37, pages 8680-8695

Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7):  Potential Precursors of High Energy Density Materials

Publication typeJournal Article
Publication date2002-08-15
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor2.9
ISSN10895639, 15205215
Physical and Theoretical Chemistry
Abstract
Geometry optimization and harmonic vibrational frequency calculations have been carried out on various structures and low-lying, high- and low-spin electronic states of Al2N4 and AlNn clusters, where n = 4 to 7, at the B3LYP, MP2, and QCISD levels. The aim of these calculations was to search for states/structures that may be suitable candidates as precursors of high energy density materials. Well-bound charge-transfer states/structures with activated NN bonds were obtained. The exothermicities of the decomposition reactions of these states/structures to N2 molecules were computed at up to the RCCSD(T)/aug-cc-pVQZ(no g) level of theory. The most exothermic decomposition reaction considered is AlN6 Cs Al·NN2N2N (N6 ring), 4A‘ ‘, (a‘)1(a‘)1(a‘ ‘)1 → Al + 3N2. The calculated ΔH298 K is −226 kcal/mol, giving an energy release of over 75 kcal/mol per N2 molecule. We conclude that AlNn systems are potential precursors of high energy density materials. In addition, the HOMOs of these states/structures have been e...

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GOST Copy
Lee E. P., Dyke J. R., Claridge R. P. Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7): Potential Precursors of High Energy Density Materials // Journal of Physical Chemistry A. 2002. Vol. 106. No. 37. pp. 8680-8695.
GOST all authors (up to 50) Copy
Lee E. P., Dyke J. R., Claridge R. P. Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7): Potential Precursors of High Energy Density Materials // Journal of Physical Chemistry A. 2002. Vol. 106. No. 37. pp. 8680-8695.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/jp021059q
UR - https://doi.org/10.1021/jp021059q
TI - Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7): Potential Precursors of High Energy Density Materials
T2 - Journal of Physical Chemistry A
AU - Lee, Edmond P.F.
AU - Claridge, Rob P
AU - Dyke, John R.
PY - 2002
DA - 2002/08/15 00:00:00
PB - American Chemical Society (ACS)
SP - 8680-8695
IS - 37
VL - 106
SN - 1089-5639
SN - 1520-5215
ER -
BibTex |
Cite this
BibTex Copy
@article{2002_Lee,
author = {Edmond P.F. Lee and Rob P Claridge and John R. Dyke},
title = {Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7): Potential Precursors of High Energy Density Materials},
journal = {Journal of Physical Chemistry A},
year = {2002},
volume = {106},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/jp021059q},
number = {37},
pages = {8680--8695},
doi = {10.1021/jp021059q}
}
MLA
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MLA Copy
Lee, Edmond P.F., et al. “Ab Initio Calculations on Al2N4 and AlNn (n = 4 to 7): Potential Precursors of High Energy Density Materials.” Journal of Physical Chemistry A, vol. 106, no. 37, Aug. 2002, pp. 8680-8695. https://doi.org/10.1021/jp021059q.
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