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Scientific Reports, volume 5, issue 1, publication number 16677

Layered polymeric nitrogen in RbN3 at high pressures

Publication typeJournal Article
Publication date2015-11-13
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor4.6
ISSN20452322, 20452322
PubMed ID:  26564812
Multidisciplinary
Abstract
The structural evolutionary behaviors of nitrogen in RbN3 have been studied up to 300 GPa using a particle swarm optimization structure searching method combined with density functional calculations. Three stable new phases with P-1, P6/mmm and C2/m structure at pressure of 30, 50 and 200 GPa are identified for the first time. The analysis of the crystal structures of three new predicated phases reveals that the transition of N3− ions goes from linear molecules to polymeric chains, benzene-like rings and then to polymeric layers induced by pressure. The electronic structures of three predicted phases reveal that the structural changes are accompanied and driven by the change of orbital hybridization of N atoms from sp to sp2 and finally to partial sp3. Most interestingly, the Rb atoms show obvious transition metal-like properties through the occupation of 4d orbitals in high-pressure phases. Moreover, the Rb atoms are characterized by strong hybridization between 4d orbitals of Rb and 2p orbitals of N in C2/m structure. Our studies complete the structural evolution of RbN3 under pressure and reveal for the first time that the Rb atoms in rubidium nitride possess transition element-like properties under pressure.

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GOST Copy
Wang X. et al. Layered polymeric nitrogen in RbN3 at high pressures // Scientific Reports. 2015. Vol. 5. No. 1. 16677
GOST all authors (up to 50) Copy
Wang X., Li J., Xu N., Zhu H., Hu Z., Chen L. Layered polymeric nitrogen in RbN3 at high pressures // Scientific Reports. 2015. Vol. 5. No. 1. 16677
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/srep16677
UR - https://doi.org/10.1038/srep16677
TI - Layered polymeric nitrogen in RbN3 at high pressures
T2 - Scientific Reports
AU - Wang, Xiaoli
AU - Li, Jianfu
AU - Xu, Ning
AU - Zhu, Hongyang
AU - Hu, Ziyu
AU - Chen, Li
PY - 2015
DA - 2015/11/13 00:00:00
PB - Springer Nature
IS - 1
VL - 5
PMID - 26564812
SN - 2045-2322
SN - 2045-2322
ER -
BibTex
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BibTex Copy
@article{2015_Wang,
author = {Xiaoli Wang and Jianfu Li and Ning Xu and Hongyang Zhu and Ziyu Hu and Li Chen},
title = {Layered polymeric nitrogen in RbN3 at high pressures},
journal = {Scientific Reports},
year = {2015},
volume = {5},
publisher = {Springer Nature},
month = {nov},
url = {https://doi.org/10.1038/srep16677},
number = {1},
doi = {10.1038/srep16677}
}
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