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Aslandukov A, Aslandukova A, Laniel D, Khandarkhaeva S, Yin Y, Akbar FI, Chariton S, Prakapenka V, Bright EL, Giacobbe C, Wright J, Comboni D, Hanfland M, Dubrovinskaia N, Dubrovinsky L. Stabilization of N 6 and N 8 anionic units and 2D polynitrogen layers in high-pressure scandium polynitrides. Nat Commun 2024; 15:2244. [PMID: 38472167 DOI: 10.1038/s41467-024-46313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Nitrogen catenation under high pressure leads to the formation of polynitrogen compounds with potentially unique properties. The exploration of the entire spectrum of poly- and oligo-nitrogen moieties is still in its earliest stages. Here, we report on four novel scandium nitrides, Sc2N6, Sc2N8, ScN5, and Sc4N3, synthesized by direct reaction between yttrium and nitrogen at 78-125 GPa and 2500 K in laser-heated diamond anvil cells. High-pressure synchrotron single-crystal X-ray diffraction reveals that in the crystal structures of the nitrogen-rich Sc2N6, Sc2N8, and ScN5 phases nitrogen is catenated forming previously unknown N66- and N86- units and ∞ 2 ( N 5 3 - ) anionic corrugated 2D-polynitrogen layers consisting of fused N12 rings. Density functional theory calculations, confirming the dynamical stability of the synthesized compounds, show that Sc2N6 and Sc2N8 possess an anion-driven metallicity, while ScN5 is an indirect semiconductor. Sc2N6, Sc2N8, and ScN5 solids are promising high-energy-density materials with calculated volumetric energy density, detonation velocity, and detonation pressure higher than those of TNT.
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Affiliation(s)
- Andrey Aslandukov
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany.
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany.
| | - Alena Aslandukova
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Dominique Laniel
- Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, United Kingdom
| | - Saiana Khandarkhaeva
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Yuqing Yin
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
| | - Fariia I Akbar
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, 60637, USA
| | - Vitali Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, 60637, USA
| | | | | | - Jonathan Wright
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Davide Comboni
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440, Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden
| | - Leonid Dubrovinsky
- Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI), University of Bayreuth, 95440, Bayreuth, Germany
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2
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Yuan Y, Kloß SD, Attfield JP. Defect rocksalt structures in the La-Na-N system. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20220329. [PMID: 37634529 PMCID: PMC10460642 DOI: 10.1098/rsta.2022.0329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/14/2023] [Indexed: 08/29/2023]
Abstract
Sodium azide (NaN3) is a versatile nitrogen source that can be used for the synthesis of new nitrides under high-pressure and temperature conditions. Reactions between lanthanum nitride (LaN) and sodium azide (NaN3) at 800°C under 8 GPa pressure have led to the discovery of two defect rocksalt phases which are the first reported ternaries in the La-Na-N system. Preliminary structure assignments have been made based on fits to powder X-ray diffraction profiles. One phase is La1-xNa3xN with vacancies at octahedral La sites and interstitial tetrahedral Na cations. This phase has a tetragonally distorted rocksalt structure (space group I4[Formula: see text]mmm, a = 3.8704(2) and c = 5.2098(3) Å for nominal x = 0.10) and the distortion decreases with increasing Na content (space group I4[Formula: see text]mmm, a = 3.8060(2) Å, c = 5.2470(3) Å for nominal x = 0.14), further giving a cubic phase (a = 5.3055(2) Å) for nominal x = 0.25. This coexists with another cubic [Formula: see text] phase (a = 5.1561 (5) Å), tentatively identified as rocksalt 'NaN1/3' stabilized by a small amount of La; NaLayN(1+3y)/3 with y ≈ 1%. These initial investigations reveal that the high-pressure La-Na-N phase diagram may be rich in defect rocksalt-type materials although further work using neutron diffraction will be needed to confirm the structures. This article is part of the theme issue 'Exploring the length scales, timescales and chemistry of challenging materials (Part 1)'.
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Affiliation(s)
- Yao Yuan
- Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh EH9 3FD, UK
| | - Simon D. Kloß
- Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Munich 81377, Germany
| | - J. Paul Attfield
- Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh EH9 3FD, UK
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3
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Glazyrin K, Aslandukov A, Aslandukova A, Fedotenko T, Khandarkhaeva S, Laniel D, Bykov M, Dubrovinsky L. High-pressure reactions between the pnictogens: the rediscovery of BiN. Front Chem 2023; 11:1257942. [PMID: 37901158 PMCID: PMC10602720 DOI: 10.3389/fchem.2023.1257942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/22/2023] [Indexed: 10/31/2023] Open
Abstract
We explore chemical reactions within pnictogens with an example of bismuth and nitrogen under extreme conditions. Understanding chemical reactions between Bi and N, elements representing the first and the last stable elements of the nitrogen group, and the physical properties of their compounds under ambient and high pressure is far from being complete. Here, we report the high-pressure high-temperature synthesis of orthorhombic Pbcn BiN (S.G. #60) from Bi and N2 precursors at pressures above 40 GPa. Using synchrotron single-crystal X-ray diffraction on the polycrystalline sample, we solved and refined the compound's structure and studied its behavior and compressibility on decompression to ambient pressure. We confirm the stability of Pbcn BiN to pressures as low as 12.5(4) GPa. Below that pressure value, a group-subgroup phase transformation occurs, resulting in the formation of a non-centrosymmetric BiN solid with a space group Pca21 (S.G. #29). We use ab initio calculations to characterize the polymorphs of BiN. They also provide support and explanation for our experimental observations, in particular those corresponding to peculiar Bi-N bond evolution under pressure, resulting in a change in the coordination numbers of Bi and N as a function of pressure within the explored stability field of Pbcn BiN.
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Affiliation(s)
- K. Glazyrin
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - A. Aslandukov
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Bayreuth, Germany
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - A. Aslandukova
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - T. Fedotenko
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - S. Khandarkhaeva
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - D. Laniel
- Centre for Science at Extreme Conditions, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
| | - M. Bykov
- Institute of Inorganic Chemistry, University of Cologne, Cologne, Germany
| | - L. Dubrovinsky
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
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4
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Jurzick PL, Krach G, Brüning L, Schnick W, Bykov M. Synthesis and crystal structure of silicon pernitride SiN 2 at 140 GPa. Acta Crystallogr E Crystallogr Commun 2023; 79:923-925. [PMID: 37817965 PMCID: PMC10561209 DOI: 10.1107/s2056989023008058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/14/2023] [Indexed: 10/12/2023]
Abstract
Silicon pernitride, SiN2, was synthesized from the elements at 140 GPa in a laser-heated diamond anvil cell. Its crystal structure was solved and refined by means of synchrotron-based single-crystal X-ray diffraction data. The title compound crystallizes in the pyrite structure type (space group Pa , No. 205). The Si atom occupies a site with multiplicity 4 (Wyckoff letter b, site symmetry ..), while the N atom is located on a site with multiplicity 8 (Wyckoff letter c, site symmetry .3.). The crystal structure of SiN2 is comprised of slightly distorted [SiN6] octa-hedra inter-connected with each other by sharing vertices. Crystal chemical analysis of bond lengths suggests that Si has a formal oxidation state of +IV, while nitro-gen forms pernitride anions (N-N)4-.
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Affiliation(s)
- Pascal L Jurzick
- Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany
| | - Georg Krach
- Department of Chemistry, University of Munich (LMU), Butenandtstrasse 5-13 (D), 81377 Munich, Germany
| | - Lukas Brüning
- Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstrasse 5-13 (D), 81377 Munich, Germany
| | - Maxim Bykov
- Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany
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Aslandukov A, Trybel F, Aslandukova A, Laniel D, Fedotenko T, Khandarkhaeva S, Aprilis G, Giacobbe C, Lawrence Bright E, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Anionic N
18
Macrocycles and a Polynitrogen Double Helix in Novel Yttrium Polynitrides YN
6
and Y
2
N
11
at 100 GPa. Angew Chem Int Ed Engl 2022; 61:e202207469. [PMID: 35726633 PMCID: PMC9546263 DOI: 10.1002/anie.202207469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Andrey Aslandukov
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Florian Trybel
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Alena Aslandukova
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Dominique Laniel
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Centre for Science at Extreme Conditions and School of Physics and Astronomy University of Edinburgh Edinburgh EH9 3FD UK
| | - Timofey Fedotenko
- Photon Science, Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany
| | - Saiana Khandarkhaeva
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Georgios Aprilis
- European Synchrotron Radiation Facility BP 220 38043 Grenoble Cedex France
| | - Carlotta Giacobbe
- European Synchrotron Radiation Facility BP 220 38043 Grenoble Cedex France
| | | | - Igor A. Abrikosov
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions Laboratory of Crystallography University of Bayreuth Universitätstrasse 30 95440 Bayreuth Germany
- Department of Physics Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
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6
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Aslandukov A, Trybel F, Aslandukova A, Laniel D, Fedotenko T, Khandarkhaeva S, Aprilis G, Giacobbe C, Lawrence Bright E, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Anionic N18 Macrocycles and a Polynitrogen Double Helix in Novel Yttrium Polynitrides YN6 and Y2N11 at 100 GPa. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Andrey Aslandukov
- University of Bayreuth: Universitat Bayreuth Laboratory of Crystallography Universitätstrasse 30 95440 Bayreuth GERMANY
| | - Florian Trybel
- Linkopings universitet Department of Physics, Chemistry and Biology (IFM) SWEDEN
| | - Alena Aslandukova
- University of Bayreuth: Universitat Bayreuth Bayerisches Geoinstitut GERMANY
| | - Dominique Laniel
- The University of Edinburgh Centre for Science at Extreme Conditions and School of Physics and Astronomy UNITED KINGDOM
| | - Timofey Fedotenko
- DESY: Deutsches Elektronen-Synchrotron Photon Science, Deutsches Elektronen-Synchrotron GERMANY
| | - Saiana Khandarkhaeva
- University of Bayreuth: Universitat Bayreuth Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography GERMANY
| | | | | | | | - Igor A. Abrikosov
- Linköping University: Linkopings universitet Department of Physics, Chemistry and Biology (IFM) SWEDEN
| | - Leonid Dubrovinsky
- University of Bayreuth: Universitat Bayreuth Bayerisches Geoinstitut GERMANY
| | - Natalia Dubrovinskaia
- University of Bayreuth: Universitat Bayreuth Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography GERMANY
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7
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Zhao Z, Liu R, Guo L, Liu S, Sui M, Niu S, Liu B, Wang P, Yao Z, Liu B. High-Pressure Synthesis and Stability Enhancement of Lithium Pentazolate. Inorg Chem 2022; 61:9012-9018. [PMID: 35658435 DOI: 10.1021/acs.inorgchem.2c00112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pentazolate anion, cyclo-N5-, has received extensive attention as a new generation of energetic species for explosive or propulsion applications. Binary pentazolate compounds have been obtained under high-pressure conditions and their stability enhancement is crucial for obtaining more competitive high energy density materials (HEDMs). Here, we report the synthesis of a new solid phase of lithium pentazolate (space group P21/c) through the chemical transformation of pure lithium azide under high-pressure and high-temperature conditions. Upon decompression, the structural transition from P21/c-LiN5 to P21/m-LiN5 at ∼15.6 GPa was observed for the first time. Cyclo-N5- can be traced down to ∼5.7 GPa at room temperature and recovered to ambient pressure under a low-temperature condition (80 K). Our results reveal the enhancement of pentazolate anion stability with the increasing content of metal cations and demonstrate that low temperature is an effective route for the recovery of the pentazolate anion.
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Affiliation(s)
- Zitong Zhao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Ran Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Linlin Guo
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Shuang Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Minghong Sui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Shifeng Niu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Bo Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Peng Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Zhen Yao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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8
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Stabilization of hexazine rings in potassium polynitride at high pressure. Nat Chem 2022; 14:794-800. [PMID: 35449217 DOI: 10.1038/s41557-022-00925-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 03/08/2022] [Indexed: 11/08/2022]
Abstract
Polynitrogen molecules are attractive for high-energy-density materials due to energy stored in nitrogen-nitrogen bonds; however, it remains challenging to find energy-efficient synthetic routes and stabilization mechanisms for these compounds. Direct synthesis from molecular dinitrogen requires overcoming large activation barriers and the reaction products are prone to inherent inhomogeneity. Here we report the synthesis of planar N62- hexazine dianions, stabilized in K2N6, from potassium azide (KN3) on laser heating in a diamond anvil cell at pressures above 45 GPa. The resulting K2N6, which exhibits a metallic lustre, remains metastable down to 20 GPa. Synchrotron X-ray diffraction and Raman spectroscopy were used to identify this material, through good agreement with the theoretically predicted structural, vibrational and electronic properties for K2N6. The N62- rings characterized here are likely to be present in other high-energy-density materials stabilized by pressure. Under 30 GPa, an unusual N20.75--containing compound with the formula K3(N2)4 was formed instead.
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9
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Kloß SD, Attfield JP. Low-dimensional magnetism in calcium nitridonickelate(II) Ca 2NiN 2. Chem Commun (Camb) 2021; 57:10427-10430. [PMID: 34549238 DOI: 10.1039/d1cc04001d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Calcium nitridonickelate(II) Ca2NiN2 has been prepared through a high-temperature and high-pressure azide-mediated redox reaction, demonstrating that this method can stabilise nitrides of late transition metals in relatively high oxidation states. Ca2NiN2 crystallizes in the Na2HgO2 structure type and displays low-dimensional antiferromagnetic ordering of Ni2+ spins.
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Affiliation(s)
- Simon D Kloß
- Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3FD, UK.
| | - J Paul Attfield
- Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3FD, UK.
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10
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Aslandukova A, Aslandukov A, Yuan L, Laniel D, Khandarkhaeva S, Fedotenko T, Steinle-Neumann G, Glazyrin K, Dubrovinskaia N, Dubrovinsky L. Novel High-Pressure Yttrium Carbide γ-Y_{4}C_{5} Containing [C_{2}] and Nonlinear [C_{3}] Units with Unusually Large Formal Charges. PHYSICAL REVIEW LETTERS 2021; 127:135501. [PMID: 34623860 DOI: 10.1103/physrevlett.127.135501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Changes in the bonding of carbon under high pressure leads to unusual crystal chemistry and can dramatically alter the properties of transition metal carbides. In this work, the new orthorhombic polymorph of yttrium carbide, γ-Y_{4}C_{5}, was synthesized from yttrium and paraffin oil in a laser-heated diamond anvil cell at ∼50 GPa. The structure of γ-Y_{4}C_{5} was solved and refined using in situ synchrotron single-crystal x-ray diffraction. It includes two carbon groups: [C_{2}] dimers and nonlinear [C_{3}] trimers. Crystal chemical analysis and density functional theory calculations revealed unusually high noninteger charges ([C_{2}]^{5.2-} and [C_{3}]^{6.8-}) and unique bond orders (<1.5). Our results extend the list of possible carbon states at extreme conditions.
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Affiliation(s)
- Alena Aslandukova
- Bavarian Research Institute of Experimental Geochemistry and Geophysics, University of Bayreuth, 95440 Bayreuth, Germany
| | - Andrey Aslandukov
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Liang Yuan
- Bavarian Research Institute of Experimental Geochemistry and Geophysics, University of Bayreuth, 95440 Bayreuth, Germany
| | - Dominique Laniel
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Saiana Khandarkhaeva
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Timofey Fedotenko
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Gerd Steinle-Neumann
- Bavarian Research Institute of Experimental Geochemistry and Geophysics, University of Bayreuth, 95440 Bayreuth, Germany
| | - Konstantin Glazyrin
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Leonid Dubrovinsky
- Bavarian Research Institute of Experimental Geochemistry and Geophysics, University of Bayreuth, 95440 Bayreuth, Germany
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11
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Bykov M, Bykova E, Ponomareva AV, Tasnádi F, Chariton S, Prakapenka VB, Glazyrin K, Smith JS, Mahmood MF, Abrikosov IA, Goncharov AF. Realization of an Ideal Cairo Tessellation in Nickel Diazenide NiN 2: High-Pressure Route to Pentagonal 2D Materials. ACS NANO 2021; 15:13539-13546. [PMID: 34355559 DOI: 10.1021/acsnano.1c04325] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Most of the studied two-dimensional (2D) materials are based on highly symmetric hexagonal structural motifs. In contrast, lower-symmetry structures may have exciting anisotropic properties leading to various applications in nanoelectronics. In this work we report the synthesis of nickel diazenide NiN2 which possesses atomic-thick layers comprised of Ni2N3 pentagons forming Cairo-type tessellation. The layers of NiN2 are weakly bonded with the calculated exfoliation energy of 0.72 J/m2, which is just slightly larger than that of graphene. The compound crystallizes in the space group of the ideal Cairo tiling (P4/mbm) and possesses significant anisotropy of elastic properties. The single-layer NiN2 is a direct-band-gap semiconductor, while the bulk material is metallic. This indicates the promise of NiN2 to be a precursor of a pentagonal 2D material with a tunable direct band gap.
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Affiliation(s)
- Maxim Bykov
- College of Arts and Science, Howard University, Washington, D.C. 20059, United States
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, D.C. 20015, United States
| | - Elena Bykova
- College of Arts and Science, Howard University, Washington, D.C. 20059, United States
| | - Alena V Ponomareva
- Materials Modeling and Development Laboratory, National University of Science and Technology "MISIS", 119049 Moscow, Russia
| | - Ferenc Tasnádi
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
| | - Konstantin Glazyrin
- Photon Sciences, Deutsches Electronen Synchrotron (DESY), D-22607 Hamburg, Germany
| | - Jesse S Smith
- HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Mohammad F Mahmood
- College of Arts and Science, Howard University, Washington, D.C. 20059, United States
| | - Igor A Abrikosov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden
| | - Alexander F Goncharov
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, D.C. 20015, United States
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12
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Bykov M, Fedotenko T, Chariton S, Laniel D, Glazyrin K, Hanfland M, Smith JS, Prakapenka VB, Mahmood MF, Goncharov AF, Ponomareva AV, Tasnádi F, Abrikosov AI, Bin Masood T, Hotz I, Rudenko AN, Katsnelson MI, Dubrovinskaia N, Dubrovinsky L, Abrikosov IA. High-Pressure Synthesis of Dirac Materials: Layered van der Waals Bonded BeN_{4} Polymorph. PHYSICAL REVIEW LETTERS 2021; 126:175501. [PMID: 33988447 DOI: 10.1103/physrevlett.126.175501] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/16/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
High-pressure chemistry is known to inspire the creation of unexpected new classes of compounds with exceptional properties. Here, we employ the laser-heated diamond anvil cell technique for synthesis of a Dirac material BeN_{4}. A triclinic phase of beryllium tetranitride tr-BeN_{4} was synthesized from elements at ∼85 GPa. Upon decompression to ambient conditions, it transforms into a compound with atomic-thick BeN_{4} layers interconnected via weak van der Waals bonds and consisting of polyacetylene-like nitrogen chains with conjugated π systems and Be atoms in square-planar coordination. Theoretical calculations for a single BeN_{4} layer show that its electronic lattice is described by a slightly distorted honeycomb structure reminiscent of the graphene lattice and the presence of Dirac points in the electronic band structure at the Fermi level. The BeN_{4} layer, i.e., beryllonitrene, represents a qualitatively new class of 2D materials that can be built of a metal atom and polymeric nitrogen chains and host anisotropic Dirac fermions.
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Affiliation(s)
- Maxim Bykov
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, D.C. 20015, USA
- College of Arts and Science, Howard University, Washington, D.C. 20059, USA
| | - Timofey Fedotenko
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
| | - Dominique Laniel
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
| | - Konstantin Glazyrin
- Photon Sciences, Deutsches Electronen Synchrotron (DESY), D-22607 Hamburg, Germany
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 38043 Grenoble Cedex 9, France
| | - Jesse S Smith
- HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA
| | - Mohammad F Mahmood
- College of Arts and Science, Howard University, Washington, D.C. 20059, USA
| | - Alexander F Goncharov
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, D.C. 20015, USA
| | - Alena V Ponomareva
- Materials Modeling and Development Laboratory, National University of Science and Technology "MISIS," 119049 Moscow, Russia
| | - Ferenc Tasnádi
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden
| | - Alexei I Abrikosov
- Department of Science and Technology (ITN), Linköping University, SE-60174 Norrköping, Sweden
| | - Talha Bin Masood
- Department of Science and Technology (ITN), Linköping University, SE-60174 Norrköping, Sweden
| | - Ingrid Hotz
- Department of Science and Technology (ITN), Linköping University, SE-60174 Norrköping, Sweden
| | - Alexander N Rudenko
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Radboud University, Institute for Molecules and Materials, 6525AJ Nijmegen, The Netherlands
- Department of Theoretical Physics and Applied Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia
| | - Mikhail I Katsnelson
- Radboud University, Institute for Molecules and Materials, 6525AJ Nijmegen, The Netherlands
- Department of Theoretical Physics and Applied Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, 95440 Bayreuth, Germany
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
| | - Igor A Abrikosov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden
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13
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Bykov M, Bykova E, Ponomareva AV, Abrikosov IA, Chariton S, Prakapenka VB, Mahmood MF, Dubrovinsky L, Goncharov AF. Stabilization of Polynitrogen Anions in Tantalum–Nitrogen Compounds at High Pressure. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maxim Bykov
- Department of Mathematics Howard University Washington DC 20059 USA
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
| | - Elena Bykova
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
| | - Alena V. Ponomareva
- Materials Modeling and Development Laboratory, National University of Science and Technology 'MISIS' 119049 Moscow Russia
| | - Igor A. Abrikosov
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Stella Chariton
- Center for Advanced Radiation Sources University of Chicago Lemont IL 60437 USA
| | | | | | | | - Alexander F. Goncharov
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
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14
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Bykov M, Bykova E, Ponomareva AV, Abrikosov IA, Chariton S, Prakapenka VB, Mahmood MF, Dubrovinsky L, Goncharov AF. Stabilization of Polynitrogen Anions in Tantalum–Nitrogen Compounds at High Pressure. Angew Chem Int Ed Engl 2021; 60:9003-9008. [DOI: 10.1002/anie.202100283] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Indexed: 02/03/2023]
Affiliation(s)
- Maxim Bykov
- Department of Mathematics Howard University Washington DC 20059 USA
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
| | - Elena Bykova
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
| | - Alena V. Ponomareva
- Materials Modeling and Development Laboratory, National University of Science and Technology 'MISIS' 119049 Moscow Russia
| | - Igor A. Abrikosov
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Stella Chariton
- Center for Advanced Radiation Sources University of Chicago Lemont IL 60437 USA
| | | | | | | | - Alexander F. Goncharov
- The Earth and Planets Laboratory Carnegie Institution for Science Washington DC 20015 USA
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15
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Bykov M, Bykova E, Chariton S, Prakapenka VB, Batyrev IG, Mahmood MF, Goncharov AF. Stabilization of pentazolate anions in the high-pressure compounds Na 2N 5 and NaN 5 and in the sodium pentazolate framework NaN 5·N 2. Dalton Trans 2021; 50:7229-7237. [PMID: 33913993 DOI: 10.1039/d1dt00722j] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and characterization of nitrogen-rich materials is important for the design of novel high energy density materials due to extremely energetic low-order nitrogen-nitrogen bonds. The balance between the energy output and stability may be achieved if polynitrogen units are stabilized by resonance as in cyclo-N5- pentazolate salts. Here we demonstrate the synthesis of three oxygen-free pentazolate salts Na2N5, NaN5 and NaN5·N2 from sodium azide NaN3 and molecular nitrogen N2 at ∼50 GPa. NaN5·N2 is a metal-pentazolate framework (MPF) obtained via a self-templated synthesis method with nitrogen molecules being incorporated into the nanochannels of the MPF. Such self-assembled MPFs may be common in a variety of ionic pentazolate compounds. The formation of Na2N5 demonstrates that the cyclo-N5 group can accommodate more than one electron and indicates the great accessible compositional diversity of pentazolate salts.
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Affiliation(s)
- Maxim Bykov
- Department of Mathematics, Howard University, Washington, DC 20059, USA. and The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
| | - Elena Bykova
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
| | - Stella Chariton
- Center for Advanced Radiation Sources, University of Chicago, Lemont, IL 60437, USA
| | - Vitali B Prakapenka
- Center for Advanced Radiation Sources, University of Chicago, Lemont, IL 60437, USA
| | - Iskander G Batyrev
- U.S. Army Research Laboratory, RDRL-WML-B, Aberdeen Proving Ground, Maryland 21005, USA
| | - Mohammad F Mahmood
- Department of Mathematics, Howard University, Washington, DC 20059, USA.
| | - Alexander F Goncharov
- The Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
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