Journal of Chemical Physics, volume 139, issue 16, pages 164710

Polymerization of nitrogen in lithium azide.

Xiaoli Wang 1, 2, 3
Jianfu Li 1, 4
Jorge Botana 2
Meiguang Zhang 5
Hongyang Zhu 3
Chen Li 1
Hongmei Liu 1
Cui Tian 3
Maosheng Miao 2, 6
Publication typeJournal Article
Publication date2013-10-28
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor4.4
ISSN00219606, 10897690
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract

Additional electrons can drastically change the bonding trend of light elements. For example, N atoms in alkali metal azides form the linear N3− anions instead of N2 molecules with the introduction of additional electrons. The effect of the additional electrons on the polymerization of N under pressure is important and thus far unclear. Using first principles density functional methods and the particle swarm optimization structure search algorithm, we systematically study the evolution of LiN3 structures under pressures up to 600 GPa. A stable structure featuring polymerized N under pressures higher than 375 GPa is identified for the first time. It consists of zig-zag N polymer chains that are formed by N5− five-member rings sharing N–N pairs. Throughout the stable pressure range, the structure is insulating and consists of N atoms in sp3 hybridizations. Comparing with the atomic and electronic structures of previous phases, our study completes the structural evolution of LiN3 under pressure and reveals the structural changes which are accompanied and driven by the change of atomic orbital hybridization, first from sp to sp2 and then from sp2 to sp3.

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Wang X. et al. Polymerization of nitrogen in lithium azide. // Journal of Chemical Physics. 2013. Vol. 139. No. 16. p. 164710.
GOST all authors (up to 50) Copy
Wang X., Li J., Botana J., Zhang M., Zhu H., Chen Li, Liu H., Cui Tian, Miao M. Polymerization of nitrogen in lithium azide. // Journal of Chemical Physics. 2013. Vol. 139. No. 16. p. 164710.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1063/1.4826636
UR - https://doi.org/10.1063/1.4826636
TI - Polymerization of nitrogen in lithium azide.
T2 - Journal of Chemical Physics
AU - Wang, Xiaoli
AU - Li, Jianfu
AU - Botana, Jorge
AU - Zhang, Meiguang
AU - Zhu, Hongyang
AU - Chen Li
AU - Liu, Hongmei
AU - Cui Tian
AU - Miao, Maosheng
PY - 2013
DA - 2013/10/28 00:00:00
PB - American Institute of Physics (AIP)
SP - 164710
IS - 16
VL - 139
SN - 0021-9606
SN - 1089-7690
ER -
BibTex |
Cite this
BibTex Copy
@article{2013_Wang,
author = {Xiaoli Wang and Jianfu Li and Jorge Botana and Meiguang Zhang and Hongyang Zhu and Chen Li and Hongmei Liu and Cui Tian and Maosheng Miao},
title = {Polymerization of nitrogen in lithium azide.},
journal = {Journal of Chemical Physics},
year = {2013},
volume = {139},
publisher = {American Institute of Physics (AIP)},
month = {oct},
url = {https://doi.org/10.1063/1.4826636},
number = {16},
pages = {164710},
doi = {10.1063/1.4826636}
}
MLA
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MLA Copy
Wang, Xiaoli, et al. “Polymerization of nitrogen in lithium azide..” Journal of Chemical Physics, vol. 139, no. 16, Oct. 2013, p. 164710. https://doi.org/10.1063/1.4826636.
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