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Lozinšek M, Mercier HPA, Schrobilgen GJ. Mixed Noble‐Gas Compounds of Krypton(II) and Xenon(VI); [F
5
Xe(FKrF)AsF
6
] and [F
5
Xe(FKrF)
2
AsF
6
]. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Matic Lozinšek
- Department of Chemistry McMaster University Hamilton ON L8S 4M1 Canada
- Present address: Department of Inorganic Chemistry and Technology Jožef Stefan Institute Jamova 39 1000 Ljubljana Slovenia
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Lozinšek M, Mercier HPA, Schrobilgen GJ. Mixed Noble-Gas Compounds of Krypton(II) and Xenon(VI); [F 5 Xe(FKrF)AsF 6 ] and [F 5 Xe(FKrF) 2 AsF 6 ]. Angew Chem Int Ed Engl 2021; 60:8149-8156. [PMID: 33242230 PMCID: PMC8048594 DOI: 10.1002/anie.202014682] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 01/10/2023]
Abstract
The coordination chemistry of KrF2 has been limited in contrast with that of XeF2 , which exhibits a far richer coordination chemistry with main-group and transition-metal cations. In the present work, reactions of [XeF5 ][AsF6 ] with KrF2 in anhydrous HF solvent afforded [F5 Xe(FKrF)AsF6 ] and [F5 Xe(FKrF)2 AsF6 ], the first mixed krypton/xenon compounds. X-ray crystal structures and Raman spectra show the KrF2 ligands and [AsF6 ]- anions are F-coordinated to the xenon atoms of the [XeF5 ]+ cations. Quantum-chemical calculations are consistent with essentially noncovalent ligand-xenon bonds that may be described in terms of σ-hole bonding. These complexes significantly extend the XeF2 -KrF2 analogy and the limited chemistry of krypton by introducing a new class of coordination compound in which KrF2 functions as a ligand that coordinates to xenon(VI). The HF solvates, [F5 Xe(FH)AsF6 ] and [F5 Xe(FH)SbF6 ], are also characterized in this study and they provide rare examples of HF coordinated to xenon(VI).
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Affiliation(s)
- Matic Lozinšek
- Department of Chemistry, McMaster University, Hamilton, ON, L8S 4M1, Canada.,Present address: Department of Inorganic Chemistry and Technology, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Hélène P A Mercier
- Department of Chemistry, McMaster University, Hamilton, ON, L8S 4M1, Canada
| | - Gary J Schrobilgen
- Department of Chemistry, McMaster University, Hamilton, ON, L8S 4M1, Canada
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Wang ZQ, Li ZG, Wang YF, Liu L, Gu YJ, Chen QF, Chen XR. Equation of state, ionic structure, and phase diagram of warm dense krypton. Phys Rev E 2019; 100:033214. [PMID: 31640078 DOI: 10.1103/physreve.100.033214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Indexed: 06/10/2023]
Abstract
Extensive quantum molecular dynamics (QMD) simulations are performed to determine the equation of state, sound velocity, and phase diagram of middle-Z krypton in a warm dense regime where the pressure (P) is up to 300 GPa and the temperature is up to 60 kK. The shock wave experimental data are used to validate the present theoretical models. It is found that, within the regime of the current density (ρ) and temperature (T), sound velocity can effectively discriminate differences between different theoretical models, and therefore it is more suitable as a benchmark to verify the practicability of models. The QMD-simulated results of the ionic structures and electronic properties imply the occurrence of two kinds of phase transitions, including transition from a solidlike to fluid state and that from an insulator to conductive fluid in this T-P regime. The calculated electrical conductivities confirm that the metallization transition occurs at about 60 GPa and 17.5 kK along the principal Hugoniot. With the help of simulation results and experimental data, a comprehensive phase diagram for krypton is constructed by using the solid-fluid and insulator-metal fluid phase boundaries, which fills the gap of the experimental work [Proc. Natl. Acad. Sci. USA 112, 7925 (2015)PNASA60027-842410.1073/pnas.1421801112]. These results will provide an instructive basis for the experimental investigations of rare gases over a wide T-P range.
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Affiliation(s)
- Zhao-Qi Wang
- College of Physics, Sichuan University, Chengdu 610065, People's Republic of China
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Zhi-Guo Li
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Yu-Feng Wang
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Lei Liu
- College of Physics, Sichuan University, Chengdu 610065, People's Republic of China
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Yun-Jun Gu
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Qi-Feng Chen
- National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Xiang-Rong Chen
- College of Physics, Sichuan University, Chengdu 610065, People's Republic of China
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High-Pressure Reactivity of Kr and F2—Stabilization of Krypton in the +4 Oxidation State. CRYSTALS 2017. [DOI: 10.3390/cryst7110329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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