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Dalsaniya MH, Upadhyay D, Jan Kurzydłowski K, Kurzydłowski D. High-pressure stabilization of open-shell bromine fluorides. Phys Chem Chem Phys 2024; 26:1762-1769. [PMID: 38165769 DOI: 10.1039/d3cp05020c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Halogen fluorides are textbook examples of how fundamental chemical concepts, such as molecular orbital theory or the valence-shell electron-repulsion (VSEPR) model, can be used to understand the geometry and properties of compounds. However, it is still an open question whether these notions are applicable to matter subject to high pressure (>1 GPa). In an attempt to gain insight into this phenomenon, we present a computational study on the phase transitions and reactivity of bromine fluorides at pressures of up to 100 GPa (≈106 atm). We predict that at a moderately high pressure of 15 GPa, the bonding preference in the Br/F system should change considerably with BrF3 becoming thermodynamically unstable and two novel compounds emerging as stable species: BrF2 and BrF6. Calculations indicate that both these compounds contain radical molecules while being non-metallic. We propose a synthetic route for obtaining BrF2 which does not require the use of highly reactive elemental fluorine. Finally, we show how molecular orbital diagrams and the VSEPR model can be used to explain the properties of compressed bromine fluorides.
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Affiliation(s)
- Madhavi H Dalsaniya
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland.
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University in Warsaw, 01-038 Warsaw, Poland.
| | - Deepak Upadhyay
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University in Warsaw, 01-038 Warsaw, Poland.
| | | | - Dominik Kurzydłowski
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszyński University in Warsaw, 01-038 Warsaw, Poland.
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Masese T, Kanyolo GM, Miyazaki Y, Ito M, Taguchi N, Rizell J, Tachibana S, Tada K, Huang Z, Alshehabi A, Ubukata H, Kubota K, Yoshii K, Senoh H, Tassel C, Orikasa Y, Kageyama H, Saito T. Honeycomb-Layered Oxides With Silver Atom Bilayers and Emergence of Non-Abelian SU(2) Interactions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204672. [PMID: 36575151 PMCID: PMC9951339 DOI: 10.1002/advs.202204672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Honeycomb-layered oxides with monovalent or divalent, monolayered cationic lattices generally exhibit myriad crystalline features encompassing rich electrochemistry, geometries, and disorders, which particularly places them as attractive material candidates for next-generation energy storage applications. Herein, global honeycomb-layered oxide compositions, Ag2 M2 TeO6 ( M = Ni , Mg , etc $M = \rm Ni, Mg, etc$ .) exhibiting Ag $\rm Ag$ atom bilayers with sub-valent states within Ag-rich crystalline domains of Ag6 M2 TeO6 and Ag $\rm Ag$ -deficient domains of Ag 2 - x Ni 2 TeO 6 ${\rm Ag}_{2 - x}\rm Ni_2TeO_6$ ( 0 < x < 2 $0 < x < 2$ ). The Ag $\rm Ag$ -rich material characterized by aberration-corrected transmission electron microscopy reveals local atomic structural disorders characterized by aperiodic stacking and incoherency in the bilayer arrangement of Ag $\rm Ag$ atoms. Meanwhile, the global material not only displays high ionic conductivity but also manifests oxygen-hole electrochemistry during silver-ion extraction. Within the Ag $\rm Ag$ -rich domains, the bilayered structure, argentophilic interactions therein and the expected Ag $\rm Ag$ sub-valent states ( 1 / 2 + , 2 / 3 + $1/2+, 2/3+$ , etc.) are theoretically understood via spontaneous symmetry breaking of SU(2)× U(1) gauge symmetry interactions amongst 3 degenerate mass-less chiral fermion states, justified by electron occupancy of silver 4 d z 2 $4d_{z^2}$ and 5s orbitals on a bifurcated honeycomb lattice. This implies that bilayered frameworks have research applications that go beyond the confines of energy storage.
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Affiliation(s)
- Titus Masese
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
- AIST‐Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM‐OIL)Sakyo‐kuKyoto606‐8501Japan
| | - Godwill Mbiti Kanyolo
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
- Department of Engineering ScienceThe University of Electro‐Communications1‐5‐1 ChofugaokaChofuTokyo182‐8585Japan
| | - Yoshinobu Miyazaki
- Tsukuba LaboratorySumika Chemical Analysis Service (SCAS), Ltd.TsukubaIbaraki300‐3266Japan
| | - Miyu Ito
- Tsukuba LaboratorySumika Chemical Analysis Service (SCAS), Ltd.TsukubaIbaraki300‐3266Japan
| | - Noboru Taguchi
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
| | - Josef Rizell
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
- Department of PhysicsChalmers University of TechnologySE‐412GöteborgSweden
| | - Shintaro Tachibana
- Graduate School of Life SciencesRitsumeikan University1‐1‐1 Noji‐higashiKusatsuShiga525‐8577Japan
| | - Kohei Tada
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
| | - Zhen‐Dong Huang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials (IAM)Nanjing University of Posts and Telecommunications (NUPT)Nanjing210023China
| | - Abbas Alshehabi
- Department of Industrial EngineeringNational Institute of Technology (KOSEN)Ibaraki College, 866 NakaneHitachinakaIbaraki312‐8508Japan
| | - Hiroki Ubukata
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto UniversityNishikyo‐kuKyoto615‐8510Japan
| | - Keigo Kubota
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
| | - Kazuki Yoshii
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
| | - Hiroshi Senoh
- Research Institute of Electrochemical EnergyNational Institute of Advanced Industrial Science and Technology (AIST)1‐8‐31 MidorigaokaIkedaOsaka563‐8577Japan
| | - Cédric Tassel
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto UniversityNishikyo‐kuKyoto615‐8510Japan
| | - Yuki Orikasa
- Graduate School of Life SciencesRitsumeikan University1‐1‐1 Noji‐higashiKusatsuShiga525‐8577Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto UniversityNishikyo‐kuKyoto615‐8510Japan
| | - Tomohiro Saito
- Tsukuba LaboratorySumika Chemical Analysis Service (SCAS), Ltd.TsukubaIbaraki300‐3266Japan
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3
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Lozinšek M, Belak Vivod M, Dragomir M. Crystal structure reinvestigation of silver(I) fluoride, AgF. IUCRDATA 2023; 8:x230018. [PMID: 36794053 PMCID: PMC9912324 DOI: 10.1107/s2414314623000184] [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: 12/13/2022] [Accepted: 01/07/2023] [Indexed: 01/25/2023] Open
Abstract
A crystal structure reinvestigation of AgF based on a low-temperature high-resolution single-crystal X-ray diffraction data is reported. Silver(I) fluoride crystallizes in the rock salt structure type (Fm m) with a unit-cell parameter of 4.92171 (14) Å at 100 K, resulting in an Ag-F bond length of 2.46085 (7) Å.
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Affiliation(s)
- Matic Lozinšek
- Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia,Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia,Correspondence e-mail:
| | - Matic Belak Vivod
- Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia,Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Mirela Dragomir
- Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia,Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia
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Wolański Ł, Metzelaars M, Leusen J, Kögerler P, Grochala W. Structural Phase Transitions and Magnetic Superexchange in M
I
Ag
II
F
3
Perovskites at High Pressure**. Chemistry 2022; 28:e202200712. [PMID: 35352859 PMCID: PMC9320850 DOI: 10.1002/chem.202200712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 11/09/2022]
Abstract
Pressure‐induced phase transitions of MIAgIIF3 perovskites (M=K, Rb, Cs) have been predicted theoretically for the first time for pressures up to 100 GPa. The sequence of phase transitions for M=K and Rb consists of a transition from orthorhombic to monoclinic and back to orthorhombic, associated with progressive bending of infinite chains of corner‐sharing [AgF6]4− octahedra and their mutual approach through secondary Ag⋅⋅⋅F contacts. In stark contrast, only a single phase transition (tetragonal→triclinic) is predicted for CsAgF3; this is associated with substantial deformation of the Jahn–Teller‐distorted first coordination sphere of AgII and association of the infinite [AgF6]4− chains into a polymeric sublattice. The phase transitions markedly decrease the coupling strength of intra‐chain antiferromagnetic superexchange in MAgF3 hosts lattices.
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Affiliation(s)
- Łukasz Wolański
- Centre of New Technologies University of Warsaw S. Banacha 2c 02-097 Warsaw Poland
| | - Marvin Metzelaars
- Institute of Inorganic Chemistry RWTH Aachen University 52074 Aachen Germany
| | - Jan Leusen
- Institute of Inorganic Chemistry RWTH Aachen University 52074 Aachen Germany
| | - Paul Kögerler
- Institute of Inorganic Chemistry RWTH Aachen University 52074 Aachen Germany
- Peter Grünberg Institute (PGI-6) Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | - Wojciech Grochala
- Centre of New Technologies University of Warsaw S. Banacha 2c 02-097 Warsaw Poland
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Phase Transitions and Amorphization of M2AgF4 (M = Na, K, Rb) Compounds at High Pressure. CRYSTALS 2022. [DOI: 10.3390/cryst12040458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
We report the results of high-pressure Raman spectroscopy studies of alkali metal fluoroargentates (M2AgF4, where M = Na, K, Rb) combined with theoretical and X-ray diffraction studies for the K member of the series. Theoretical density functional calculations predict two structural phase transitions for K2AgF4: one from low-pressure monoclinic P21/c (beta) phase to intermediate-pressure tetragonal I42d structure at 6 GPa, and another to high-pressure triclinic P1 phase at 58 GPa. However, Raman spectroscopy and X-ray diffraction data indicate that both polymorphic forms of K2AgF4, as well as two other fluoroargentate phases studied here, undergo amorphization at pressures as low as several GPa.
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Grzelak A, Grochala W. Stability of hypothetical Ag IICl 2 polymorphs under high pressure, revisited: a computational study. Sci Rep 2022; 12:1153. [PMID: 35064224 PMCID: PMC8782826 DOI: 10.1038/s41598-022-05211-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/23/2021] [Indexed: 11/16/2022] Open
Abstract
A comparative computational study of stability of candidate structures for an as-yet unknown silver dichloride AgCl2 is presented. It is found that all considered candidates have a negative enthalpy of formation, but are unstable towards charge transfer and decomposition into silver(I) chloride and chlorine within the DFT and hybrid-DFT approaches in the entire studied pressure range. Within SCAN approach, several of the "true" AgIICl2 polymorphs (i.e. containing Ag(II) species) exhibit a region of stability below ca. 20 GPa. However, their stability with respect to aforementioned decomposition decreases with pressure by account of all three DFT methods, which suggests a limited possibility of high-pressure synthesis of AgCl2. Some common patterns in pressure-induced structural transitions observed in the studied systems also emerge, which further testify to an instability of hypothetical AgCl2 towards charge transfer and phase separation.
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Affiliation(s)
- Adam Grzelak
- Center for New Technologies, University of Warsaw, Banacha 2C, 02-097, Warszawa, Poland.
| | - Wojciech Grochala
- Center for New Technologies, University of Warsaw, Banacha 2C, 02-097, Warszawa, Poland
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7
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Zhang S, Yang Q, Zhang X, Zhao K, Yu H, Zhu L, Liu H. Crystal structures and superconductivity of lithium and fluorine implanted gold hydrides under high pressures. Phys Chem Chem Phys 2021; 23:21544-21553. [PMID: 34549743 DOI: 10.1039/d1cp02781f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The investigations on gold science have been capturing research interest due to its diverse physical and chemical properties. Gold hydrides in the solid state, as a member of the Au compound family, are rare since the reaction of Au with H is hindered in terms of their similar electronegativity. It is expected that Li and F can provide electrons and holes, respectively, to help stabilize gold hydrides under high pressure. Herein, by means of a crystal structural search based on particle swarm optimization methodology accompanied by first-principles calculations, four hitherto unknown Li-Au-H compounds (i.e., LiAuH, LiAu2H, Li2Au2H, and Li6AuH) are predicted to be stable under compression. Intriguingly, Au-H bonding is found in LiAuH, LiAu2H, and Li2Au2H. As the gold content increases, Au atom arrangements exhibit diverse forms, from the chain in Li6AuH, the square layer in LiAuH, the network in Li2Au2H, and eventually to the coexistence of square and pyramid layers in LiAu2H. Additionally, Li6AuH has a unique cage-type lithium structure. Furthermore, electron-phonon coupling calculations show that these Li-Au-H phases are phonon-modulated superconductors with a superconducting critical temperature of 1.3, 0.06, and 0.02 K at 25 GPa and 2.79 K at 100 GPa. In contrast, we also identified two solid F4AuH and F6AuH phases with unexpected semiconductivity. They have structural configurations of H-bridged AuF4 quasi-square components and distorted AuF6 octahedrons, respectively, and have no gold-to-hydrogen bonds. Our current results indicate that electron doping at suitable concentrations under pressure can stabilize unique gold hydrides, and provide deep insights into the structures, electron properties, bonding behavior, and stability mechanism of ternary Li-Au-H and F-Au-H compounds.
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Affiliation(s)
- Shoutao Zhang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Qiuping Yang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Xiaohua Zhang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Kaixuan Zhao
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Hong Yu
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Li Zhu
- Department of Physics, Rutgers University, Newark, NJ 07102, USA.
| | - Hanyu Liu
- International Center for Computational Method & Software and State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China. .,Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education),College of Physics, Jilin University, Changchun 130012, China
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