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Dai W, He S, Ding K, Lu C. Polymeric Hydronitrogen N 4H: A Promising High-Energy-Density Material and High-Temperature Superconductor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49986-49994. [PMID: 36286258 DOI: 10.1021/acsami.2c16293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Solid nitrogen-rich compounds are potential high-energy-density materials (HEDMs). The enormous challenge in this area is to synthesize and stabilize these energetic materials at moderate pressure and better under near-ambient conditions. Here, we perform an extensive theoretical study on hydronitrogens by the reverse design method considering both energies and energy densities. Four hydronitrogens with different stoichiometries, that is, N4H, N3H, N2H, and NH, are found to be stable at pressures of about 80-300 GPa and metastable with pressure releasing to ambient pressure. The energy densities of these hydronitrogens are about 5.6-6.5 kJ/g and 1.3-1.5 times larger than that of trinitrotoluene (TNT). Most importantly, the Pbam phase of the N4H compound is an excellent high-temperature superconductor with a Tc of 37.7 K at 72 GPa. The present findings enrich new phases of hydronitrogens under high pressure and characterize their structural and energetic properties and superconductivity, which offer crucial insights for further design and synthesis of exceptional materials with high energy density and high-temperature superconductivity.
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Affiliation(s)
- Wei Dai
- School of Mathematics and Physics, Jingchu University of Technology, Hubei448000, China
| | - Shi He
- Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), Wuhan430074, China
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan430074, China
| | - Kewei Ding
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an710065, China
- Xi'an Modern Chemistry Research Institute, Xi'an710065, China
| | - Cheng Lu
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan430074, China
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2
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Zhang G, Zhang H, Ninet S, Zhu H, Beneut K, Liu C, Mezouar M, Gao C, Datchi F. Transformation of Ammonium Azide at High Pressure and Temperature. MATERIALS 2020; 13:ma13184102. [PMID: 32942780 PMCID: PMC7560398 DOI: 10.3390/ma13184102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 11/16/2022]
Abstract
The compression of ammonium azide (AA) has been considered to be a promising route for producing high energy-density polynitrogen compounds. So far though, there is no experimental evidence that pure AA can be transformed into polynitrogen materials under high pressure at room temperature. We report here on high pressure (P) and temperature (T) experiments on AA embedded in N2 and on pure AA in the range 0-30 GPa, 300-700 K. The decomposition of AA into N2 and NH3 was observed in liquid N2 around 15 GPa-700 K. For pressures above 20 GPa, our results show that AA in N2 transforms into a new crystalline compound and solid ammonia when heated above 620 K. This compound is stable at room temperature and on decompression down to at least 7.0 GPa. Pure AA also transforms into a new compound at similar P-T conditions, but the product is different. The newly observed phases are studied by Raman spectroscopy and X-ray diffraction and compared to nitrogen and hydronitrogen compounds that have been predicted in the literature. While there is no exact match with any of them, similar vibrational features are found between the product that was obtained in AA + N2 with a polymeric compound of N9H formula.
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Affiliation(s)
- Guozhao Zhang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 Place Jussieu, F-75005 Paris, France; (H.Z.); (S.N.); (K.B.)
| | - Haiwa Zhang
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 Place Jussieu, F-75005 Paris, France; (H.Z.); (S.N.); (K.B.)
| | - Sandra Ninet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 Place Jussieu, F-75005 Paris, France; (H.Z.); (S.N.); (K.B.)
| | - Hongyang Zhu
- School of Physics and Electronic Engineering, Linyi University, Linyi 276005, China;
| | - Keevin Beneut
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 Place Jussieu, F-75005 Paris, France; (H.Z.); (S.N.); (K.B.)
| | - Cailong Liu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Technology of Liaocheng University, Liaocheng 252059, China;
| | - Mohamed Mezouar
- European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble CEDEX, France;
| | - Chunxiao Gao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
- Correspondence: (C.G.); (F.D.)
| | - Frédéric Datchi
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 Place Jussieu, F-75005 Paris, France; (H.Z.); (S.N.); (K.B.)
- Correspondence: (C.G.); (F.D.)
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Song X, Yin K, Wang Y, Hermann A, Liu H, Lv J, Li Q, Chen C, Ma Y. Exotic Hydrogen Bonding in Compressed Ammonia Hydrides. J Phys Chem Lett 2019; 10:2761-2766. [PMID: 31067056 DOI: 10.1021/acs.jpclett.9b00973] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogen-rich compounds attract significant fundamental and practical interest for their ability to accommodate diverse hydrogen bonding patterns and their promise as superior energy storage materials. Here, we report on an intriguing discovery of exotic hydrogen bonding in compressed ammonia hydrides and identify two novel ionic phases in an unusual stoichiometry NH7. The first is a hexagonal R3̅ m phase containing NH3-H+-NH3, H-, and H2 structural units stabilized above 25 GPa. The exotic NH3-H+-NH3 unit comprises two NH3 molecules bound to a proton donated from a H2 molecule. Above 60 GPa, the structure transforms to a tetragonal P41212 phase comprising NH4+, H-, and H2 units. At elevated temperatures, fascinating superionic phases of NH7 with part-solid and part-liquid structural forms are identified. The present findings advance fundamental knowledge about ammonia hydrides at high pressure with broad implications for studying planetary interiors and superior hydrogen storage materials.
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Affiliation(s)
- Xianqi Song
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
| | - Ketao Yin
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
| | - Yanchao Wang
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
| | - Andreas Hermann
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Hanyu Liu
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
| | - Jian Lv
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
| | - Quan Li
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
- International Center of Future Science , Jilin University , Changchun 130012 , China
| | - Changfeng Chen
- Department of Physics and Astronomy , University of Nevada , Las Vegas , Nevada 89154 , United States
| | - Yanming Ma
- State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Department of Materials Science, and Innovation Center for Computational Physics Methods and Software , Jilin University , Changchun 130012 , China
- International Center of Future Science , Jilin University , Changchun 130012 , China
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Ciezak-Jenkins JA, Steele BA, Borstad GM, Oleynik II. Structural and spectroscopic studies of nitrogen-carbon monoxide mixtures: Photochemical response and observation of a novel phase. J Chem Phys 2017. [DOI: 10.1063/1.4983040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Brad A. Steele
- Department of Physics, University of South Florida, Tampa, Florida 33620, USA
| | - Gustav M. Borstad
- U.S. Army Research Laboratory, RDRL-WML-B, Aberdeen Proving Grounds, Aberdeen, Maryland 21005, USA
| | - Ivan I. Oleynik
- Department of Physics, University of South Florida, Tampa, Florida 33620, USA
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A Novel High-Density Phase and Amorphization of Nitrogen-Rich 1H-Tetrazole (CH 2N 4) under High Pressure. Sci Rep 2017; 7:39249. [PMID: 28218236 PMCID: PMC5316957 DOI: 10.1038/srep39249] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/21/2016] [Indexed: 11/12/2022] Open
Abstract
The high-pressure behaviors of nitrogen-rich 1H-tetrazole (CH2N4) have been investigated by in situ synchrotron X-ray diffraction (XRD) and Raman scattering up to 75 GPa. A first crystalline-to-crystalline phase transition is observed and identified above ~3 GPa with a large volume collapse (∼18% at 4.4 GPa) from phase I to phase II. The new phase II forms a dimer-like structure, belonging to P1 space group. Then, a crystalline-to-amorphous phase transition takes place over a large pressure range of 13.8 to 50 GPa, which is accompanied by an interphase region approaching paracrystalline state. When decompression from 75 GPa to ambient conditions, the final product keeps an irreversible amorphous state. Our ultraviolet (UV) absorption spectrum suggests the final product exhibits an increase in molecular conjugation.
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Steele BA, Oleynik II. Pentazole and Ammonium Pentazolate: Crystalline Hydro-Nitrogens at High Pressure. J Phys Chem A 2017; 121:1808-1813. [DOI: 10.1021/acs.jpca.6b12900] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brad A. Steele
- Department of Physics, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Ivan I. Oleynik
- Department of Physics, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
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7
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Hexacoordinated nitrogen(V) stabilized by high pressure. Sci Rep 2016; 6:36049. [PMID: 27808104 PMCID: PMC5093683 DOI: 10.1038/srep36049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 10/10/2016] [Indexed: 11/08/2022] Open
Abstract
In all of its known connections nitrogen retains a valence shell electron count of eight therefore satisfying the golden rule of chemistry - the octet rule. Despite the diversity of nitrogen chemistry (with oxidation states ranging from + 5 to −3), and despite numerous efforts, compounds containing nitrogen with a higher electron count (hypervalent nitrogen) remain elusive and are yet to be synthesized. One possible route leading to nitrogen’s hypervalency is the formation of a chemical moiety containing pentavalent nitrogen atoms coordinated by more than four substituents. Here, we present theoretical evidence that a salt containing hexacoordinated nitrogen(V), in the form of an NF6− anion, could be synthesized at a modest pressure of 40 GPa (=400 kbar) via spontaneous oxidation of NF3 by F2. Our results indicate that the synthesis of a new class of compounds containing hypervalent nitrogen is within reach of current high-pressure experimental techniques.
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Qian GR, Niu H, Hu CH, Oganov AR, Zeng Q, Zhou HY. Diverse Chemistry of Stable Hydronitrogens, and Implications for Planetary and Materials Sciences. Sci Rep 2016; 6:25947. [PMID: 27193059 PMCID: PMC4872144 DOI: 10.1038/srep25947] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 03/29/2016] [Indexed: 12/24/2022] Open
Abstract
Nitrogen hydrides, e.g., ammonia (NH3), hydrazine (N2H4) and hydrazoic acid (HN3), are compounds of great fundamental and applied importance. Their high-pressure behavior is important because of their abundance in giant planets and because of the hopes of discovering high-energy-density materials. Here, we have performed a systematic investigation on the structural stability of N-H system in a pressure range up to 800 GPa through evolutionary structure prediction. Surprisingly, we found that high pressure stabilizes a series of previously unreported compounds with peculiar structural and electronic properties, such as the N4H, N3H, N2H and NH phases composed of nitrogen backbones, the N9H4 phase containing two-dimensional metallic nitrogen planes and novel N8H, NH2, N3H7, NH4 and NH5 molecular phases. Another surprise is that NH3 becomes thermodynamically unstable above ~460 GPa. We found that high-pressure chemistry of hydronitrogens is much more diverse than hydrocarbon chemistry at normal conditions, leading to expectations that N-H-O and N-H-O-S systems under pressure are likely to possess richer chemistry than the known organic chemistry. This, in turn, opens a possibility of nitrogen-based life at high pressure. The predicted phase diagram of the N-H system also provides a reference for synthesis of high-energy-density materials.
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Affiliation(s)
- Guang-Rui Qian
- Department of Geosciences, Center for Materials by Design, and Institute for Advanced Computational Science, State University of New York, Stony Brook, NY 11794-2100, USA
| | - Haiyang Niu
- Department of Geosciences, Center for Materials by Design, and Institute for Advanced Computational Science, State University of New York, Stony Brook, NY 11794-2100, USA
| | - Chao-Hao Hu
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P.R. China
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, P.R. China
| | - Artem R. Oganov
- Department of Geosciences, Center for Materials by Design, and Institute for Advanced Computational Science, State University of New York, Stony Brook, NY 11794-2100, USA
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel St., Moscow 143026, Russia
- Moscow Institute of Physics and Technology, 9 Institutskiy lane, Dolgoprudny city, Moscow Region 141700, Russia
- International Center for Materials Discovery, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, P.R. China
| | - Qingfeng Zeng
- International Center for Materials Discovery, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, P.R. China
| | - Huai-Ying Zhou
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, P.R. China
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Wang H, Eremets MI, Troyan I, Liu H, Ma Y, Vereecken L. Nitrogen Backbone Oligomers. Sci Rep 2015; 5:13239. [PMID: 26286836 PMCID: PMC4541254 DOI: 10.1038/srep13239] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 07/14/2015] [Indexed: 11/13/2022] Open
Abstract
We found that nitrogen and hydrogen directly react at room temperature and pressures of ~35 GPa forming chains of single-bonded nitrogen atom with the rest of the bonds terminated with hydrogen atoms - as identified by IR absorption, Raman, X-ray diffraction experiments and theoretical calculations. At releasing pressures below ~10 GPa, the product transforms into hydrazine. Our findings might open a way for the practical synthesis of these extremely high energetic materials as the formation of nitrogen-hydrogen compounds is favorable already at pressures above 2 GPa according to the calculations.
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Affiliation(s)
- Hongbo Wang
- Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany
- State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China
| | - Mikhail I. Eremets
- Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany
| | - Ivan Troyan
- Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany
- Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russia
| | - Hanyu Liu
- State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China
| | - Yanming Ma
- State Key Lab of Superhard Materials, Jilin University, Changchun 130012, P. R. China
| | - Luc Vereecken
- Max Planck Institute for Chemistry, Biogeochemistry Department, PO Box 3060, 55020 Mainz, Germany
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Goncharov AF, Holtgrewe N, Qian G, Hu C, Oganov AR, Somayazulu M, Stavrou E, Pickard CJ, Berlie A, Yen F, Mahmood M, Lobanov SS, Konôpková Z, Prakapenka VB. Backbone NxH compounds at high pressures. J Chem Phys 2015; 142:214308. [DOI: 10.1063/1.4922051] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander F. Goncharov
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, 350 Shushanghu Road, Hefei, Anhui 230031, China
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, D.C. 20015, USA
- University of Science and Technology of China, Hefei, 230026, China
| | - Nicholas Holtgrewe
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, D.C. 20015, USA
- Howard University, Washington, D.C. 20059, USA
| | - Guangrui Qian
- Department of Geosciences, State University of New York, Stony Brook, New York 11794-2100, USA
- Center for Materials by Design, Institute for Advanced Computational Science, State University of New York, Stony Brook, New York 11794-2100, USA
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China
| | - Chaohao Hu
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China
| | - Artem R. Oganov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Moscow 143026, Russia
- Department of Geosciences, State University of New York, Stony Brook, New York 11794-2100, USA
- Center for Materials by Design, Institute for Advanced Computational Science, State University of New York, Stony Brook, New York 11794-2100, USA
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudny, Moscow Region 141700, Russian Federation
| | - Maddury Somayazulu
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, D.C. 20015, USA
| | - Elissaios Stavrou
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, D.C. 20015, USA
| | - Chris J. Pickard
- University College London, Gower St., London WC1E 6BT, United Kingdom
| | - Adam Berlie
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, 350 Shushanghu Road, Hefei, Anhui 230031, China
| | - Fei Yen
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, 350 Shushanghu Road, Hefei, Anhui 230031, China
| | | | - Sergey S. Lobanov
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, D.C. 20015, USA
- V.S. Sobolev Institute of Geology and Mineralogy, SB RAS, 3 Pr. Ac. Koptyga, Novosibirsk 630090, Russia
| | | | - Vitali B. Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
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Wu X, Ma F, Ma C, Cui H, Liu Z, Zhu H, Wang X, Cui Q. Pressure-driven variations of hydrogen bonding energy in ammonium azide (NH4N3): IR absorption and Raman scattering studies. J Chem Phys 2014; 141:024703. [PMID: 25028034 DOI: 10.1063/1.4886184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study, high pressure infrared (IR) absorption and Raman scattering studies for ammonium azide (NH4N3) were carried out at room temperature up to 20 GPa and 22 GPa, respectively. For comparison and further assignment, the vibrational spectra at ambient conditions were calculated using CASTEP code, particularly for the far- and mid-IR modes. The recorded vibrational data consistently indicated a pressure-induced phase transition at 2.9 GPa. All observed vibrational modes maintained their identities at the high pressure phase, indicating that NH4N3 was still presented in the form of ammonium cations and azide anions linked by the hydrogen bond (N-H⋯N). Above 2.9 GPa, the relative magnitude of the torsional mode weakened and the N-H symmetric stretch displayed a redshift, indicating strengthened hydrogen bonding energy. The opposite effects were observed above 12 GPa, where the relative magnitude of the torsional mode strengthened and the N-H symmetric stretch reverted to a blueshift, indicating weakened hydrogen bonding energy. It can be concluded that the hydrogen bonding energy exhibited a weakening (0-2.9 GPa), strengthening (2.9-12 GPa), and then again weakening (12-22 GPa) phenomena with the increasing of compression. The hydrogen bonding energy changing with the increase of pressure can be ascribed to a phase transition at 2.9 GPa and a rotational or bending behavior of azide ions at 12 GPa.
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Affiliation(s)
- Xiaoxin Wu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Fengxian Ma
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Chunli Ma
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Hang Cui
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Zhenxian Liu
- Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015, USA
| | - Hongyang Zhu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Xiaoli Wang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
| | - Qiliang Cui
- State Key Laboratory of Superhard Materials, Jilin University, Changchun, Jilin 130012, China
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12
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Liu QJ, Zeng W, Liu FS, Liu ZT. First-principles study of hydronitrogen compounds: Molecular crystalline NH4N3 and N2H5N3. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Medvedev S, Eremets M, Evers J, Klapötke T, Palasyuk T, Trojan I. Pressure induced polymorphism in ammonium azide (NH4N3). Chem Phys 2011. [DOI: 10.1016/j.chemphys.2011.05.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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