1
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Lu Y, Wodyński A, Reimann M, Medel R, Kaupp M, Riedel S. Investigation of Isolated IrF 5 -, IrF 6 - Anions and M[IrF 6] (M=Na, K, Rb, Cs) Ion Pairs by Matrix-Isolation Spectroscopy and Relativistic Quantum-Chemical Calculations. Chemistry 2024; 30:e202401015. [PMID: 38618887 DOI: 10.1002/chem.202401015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
The molecular IrF5 -, IrF6 - anions and M[IrF6] (M=Na, K, Rb, Cs) ion pairs were prepared by co-deposition of laser-ablated alkali metal fluorides MF with IrF6 and isolated in solid neon or argon matrices under cryogenic conditions. The free anions were obtained as well by co-deposition of IrF6 with laser-ablated metals (Ir or Pt) as electron sources. The products were characterized in a combined analysis of matrix IR spectroscopy and electronic structure calculations using two-component quasi-relativistic DFT methods accounting for spin-orbit coupling (SOC) effects as well as multi-reference configuration-interaction (MRCI) approaches with SOC. Inclusion of SOC is crucial in the prediction of spectra and properties of IrF6 - and its alkali-metal ion pairs. The observed IR bands and the computations show that the IrF6 - anion adopts an Oh structure in a nondegenerate ground state stabilized by SOC effects, and not a distorted D4h structure in a triplet ground state as suggested by scalar-relativistic calculations. The corresponding "closed-shell" M[IrF6] ion pairs with C3v symmetry are stabilized by coordination of an alkali metal ion to three F atoms, and their structural change in the series from M=Na to Cs was proven spectroscopically. There is no evidence for the formation of IrF7, IrF7 - or M[IrF7] (M=Na, K, Rb, Cs) ion pairs in our experiments.
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Affiliation(s)
- Yan Lu
- Institut für Chemie und Biochemie-Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany
| | - Artur Wodyński
- Institut für Chemie Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Marc Reimann
- Institut für Chemie Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Robert Medel
- Institut für Chemie und Biochemie-Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany
| | - Martin Kaupp
- Institut für Chemie Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Sebastian Riedel
- Institut für Chemie und Biochemie-Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany
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2
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“Semi-Long-Periodical” Tabulated Version of Chemical Elements Periodic System. INORGANICS 2023. [DOI: 10.3390/inorganics11020087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
A possible modification of the tabulated version of the Chemical Elements Periodical System, proposed to overcome deficiencies of the two most used versions—the “short-periodical” proposed by Mendeleev and the “long-periodical” introduced by Werner and recommended by IUPAC at the present time—is discussed in this paper.
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3
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Lu JB, Jiang XL, Wang JQ, Hu HS, Schwarz WHE, Li J. On the highest oxidation states of the actinoids in AnO 4 molecules (An = Ac - Cm): A DMRG-CASSCF study. J Comput Chem 2023; 44:190-198. [PMID: 35420170 DOI: 10.1002/jcc.26856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 12/31/2022]
Abstract
Actinoid tetroxide molecules AnO4 (An = Ac - Cm) are investigated with the ab initio density matrix renormalization group (DMRG) approach. Natural orbital shapes are used to read out the oxidation state (OS) of the f-elements, and the atomic orbital energies and radii are used to explain the trends. The highest OSs reveal a "volcano"-type variation: For An = Ac - Np, the OSs are equal to the number of available valence electrons, that is, AcIII , ThIV , PaV , UVI , and NpVII . Starting with plutonium as the turning point, the highest OSs in the most stable AnO4 isomers then decrease as PuV , AmV , and CmIII , indicating that the 5f-electrons are hard to be fully oxidized off from Pu onward. The variations are related to the actinoid contraction and to the 5f-covalency characteristics. Combined with previous work on OSs, we review their general trends throughout the periodic table, providing fundamental understanding of OS-relevant phenomena.
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Affiliation(s)
- Jun-Bo Lu
- Departmentof Chemistry, Southern University of Science and Technology, Shenzhen.,Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University, Beijing
| | - Xue-Lian Jiang
- Departmentof Chemistry, Southern University of Science and Technology, Shenzhen
| | - Jia-Qi Wang
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University, Beijing
| | - Han-Shi Hu
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University, Beijing
| | - W H Eugen Schwarz
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University, Beijing.,Theoretische Chemie, Fachbereich Chemie und Biologie, Universität Siegen, Siegen, Germany
| | - Jun Li
- Departmentof Chemistry, Southern University of Science and Technology, Shenzhen.,Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University, Beijing
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4
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Nikitin MI, Alikhanyan AS. Thermochemistry of Iridium Fluorides. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622600940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Lu Y, Tsegaw YA, Wodyński A, Li L, Beckers H, Kaupp M, Riedel S. Investigation of Molecular Iridium Fluorides IrF n (n=1-6): A Combined Matrix-Isolation and Quantum-Chemical Study. Chemistry 2022; 28:e202104005. [PMID: 35181951 PMCID: PMC9310635 DOI: 10.1002/chem.202104005] [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: 11/06/2021] [Indexed: 12/03/2022]
Abstract
The photo-initiated defluorination of iridium hexafluoride (IrF6 ) was investigated in neon and argon matrices at 6 K, and their photoproducts are characterized by IR and UV-vis spectroscopies as well as quantum-chemical calculations. The primary photoproducts obtained after irradiation with λ=365 nm are iridium pentafluoride (IrF5 ) and iridium trifluoride (IrF3 ), while longer irradiation of the same matrix with λ=278 nm produced iridium tetrafluoride (IrF4 ) and iridium difluoride (IrF2 ) by Ir-F bond cleavage or F2 elimination. In addition, IrF5 can be reversed to IrF6 by adding a F atom when exposed to blue-light (λ=470 nm) irradiation. Laser irradiation (λ=266 nm) of IrF4 also generated IrF6 , IrF5 , IrF3 and IrF2 . Alternatively, molecular binary iridium fluorides IrFn (n=1-6) were produced by co-deposition of laser-ablated iridium atoms with elemental fluorine in excess neon and argon matrices under cryogenic conditions. Computational studies up to scalar relativistic CCSD(T)/triple-ζ level and two-component quasirelativistic DFT computations including spin-orbit coupling effects supported the formation of these products and provided detailed insights into their molecular structures by their characteristic Ir-F stretching bands. Compared to the Jahn-Teller effect, the influence of spin-orbit coupling dominates in IrF5 , leading to a triplet ground state with C4v symmetry, which was spectroscopically detected in solid argon and neon matrices.
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Affiliation(s)
- Yan Lu
- Freie Universität BerlinInstitut für Chemie und Biochemie-Anorganische ChemieFabeckstrasse 34/3614195BerlinGermany
| | - Yetsedaw A. Tsegaw
- Freie Universität BerlinInstitut für Chemie und Biochemie-Anorganische ChemieFabeckstrasse 34/3614195BerlinGermany
| | - Artur Wodyński
- Technische Universität BerlinInstitut für Chemie Theoretische Chemie/Quantenchemie Sekr. C7Strasse des 17. Juni 13510623BerlinGermany
| | - Lin Li
- Freie Universität BerlinInstitut für Chemie und Biochemie-Anorganische ChemieFabeckstrasse 34/3614195BerlinGermany
| | - Helmut Beckers
- Freie Universität BerlinInstitut für Chemie und Biochemie-Anorganische ChemieFabeckstrasse 34/3614195BerlinGermany
| | - Martin Kaupp
- Technische Universität BerlinInstitut für Chemie Theoretische Chemie/Quantenchemie Sekr. C7Strasse des 17. Juni 13510623BerlinGermany
| | - Sebastian Riedel
- Freie Universität BerlinInstitut für Chemie und Biochemie-Anorganische ChemieFabeckstrasse 34/3614195BerlinGermany
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6
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Lin J, Du X, Rahm M, Yu H, Xu H, Yang G. Exploring the Limits of Transition‐Metal Fluorination at High Pressures. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianyan Lin
- 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
| | - Xin Du
- 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
| | - Martin Rahm
- Department of Chemistry and Chemical Engineering Chalmers University of Technology 41296 Gothenburg Sweden
| | - 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
| | - Haiyang Xu
- 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
| | - Guochun 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
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Lin J, Du X, Rahm M, Yu H, Xu H, Yang G. Exploring the Limits of Transition-Metal Fluorination at High Pressures. Angew Chem Int Ed Engl 2020; 59:9155-9162. [PMID: 32150319 DOI: 10.1002/anie.202002339] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Indexed: 01/08/2023]
Abstract
Fluorination is a proven method for challenging the limits of chemistry, both structurally and electronically. Here we explore computationally how pressures below 300 GPa affect the fluorination of several transition metals. A plethora of new structural phases are predicted along with the possibility for synthesizing four unobserved compounds: TcF7 , CdF3 , OsF8 , and IrF8 . The Ir and Os octaflourides are both predicted to be stable as quasi-molecular phases with an unusual cubic ligand coordination, and both compounds formally correspond to a high oxidation state of +8. Electronic-structure analysis reveals that otherwise unoccupied 6p levels are brought down in energy by the combined effects of pressure and a strong ligand field. The valence expansion of Os and Ir enables ligand-to-metal F 2p→M 6p charge transfer that strengthens M-F bonds and decreases the overall bond polarity. The lower stability of IrF8 , and the instability of PtF8 and several other compounds below 300 GPa, is explained by the occupation of M-F antibonding orbitals in octafluorides with a metal-valence-electron count exceeding 8.
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Affiliation(s)
- Jianyan Lin
- 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
| | - Xin Du
- 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
| | - Martin Rahm
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296, Gothenburg, Sweden
| | - 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
| | - Haiyang Xu
- 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
| | - Guochun 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
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8
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Wolański Ł, Domański MA, Grochala W, Szarek P. Pt X as the limit of high oxidation states in oxide–nitride species. Chem Commun (Camb) 2020; 56:13137-13140. [DOI: 10.1039/d0cc05361a] [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
Neutral PtO2N2 and PtNO3+ and PtN3O− ions are theoretically predicted to be sufficiently metastable to be prepared by a skillful experimenter in cryogenic conditions. PtNO3+ has a longer lifetime than the previously claimed PtO42+.
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Affiliation(s)
- Łukasz Wolański
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
| | - Mateusz A. Domański
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
- Faculty of Chemistry
| | | | - Paweł Szarek
- Centre of New Technologies
- University of Warsaw
- Warsaw 02-097
- Poland
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9
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Lin J, Zhao Z, Liu C, Zhang J, Du X, Yang G, Ma Y. IrF8 Molecular Crystal under High Pressure. J Am Chem Soc 2019; 141:5409-5414. [DOI: 10.1021/jacs.9b00069] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianyan Lin
- 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
| | - Ziyuan 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
| | - Chunyu Liu
- 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
| | - Jing 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
| | - Xin Du
- 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
| | - Guochun 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
| | - Yanming Ma
- State Key Laboratory of Superhard Materials, College of Physics and International Center of Future Science, Jilin University, Changchun 130012, China
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10
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Wilson AV, Nguyen T, Brosi F, Wang X, Andrews L, Riedel S, Bridgeman AJ, Young NA. A Matrix Isolation and Computational Study of Molecular Palladium Fluorides: Does PdF6 Exist? Inorg Chem 2016; 55:1108-23. [DOI: 10.1021/acs.inorgchem.5b02273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antony V. Wilson
- Department of Chemistry, The University of Hull, Kingston upon Hull HU6 7RX, U.K
| | - Timothy Nguyen
- School of Chemistry, The University of Sydney, NSW 2006, Australia
| | - Felix Brosi
- Institut
für Chemie und Biochemie−Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany
| | - Xuefeng Wang
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Sebastian Riedel
- Institut
für Chemie und Biochemie−Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany
- Institut für Anorganische und Analytische
Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse
21, D-79104 Freiburg
im Breisgau, Germany
| | | | - Nigel A. Young
- Department of Chemistry, The University of Hull, Kingston upon Hull HU6 7RX, U.K
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11
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Hintermair U, Sheehan SW, Parent AR, Ess DH, Richens DT, Vaccaro PH, Brudvig GW, Crabtree RH. Precursor Transformation during Molecular Oxidation Catalysis with Organometallic Iridium Complexes. J Am Chem Soc 2013; 135:10837-51. [DOI: 10.1021/ja4048762] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ulrich Hintermair
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
| | - Stafford W. Sheehan
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
| | - Alexander R. Parent
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
| | - Daniel H. Ess
- Department of Chemistry & Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - David T. Richens
- Department of Chemistry & Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States
| | - Patrick H. Vaccaro
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
| | - Gary W. Brudvig
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
| | - Robert H. Crabtree
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United
States
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12
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Wang X, Andrews L, Brosi F, Riedel S. Matrix Infrared Spectroscopy and Quantum-Chemical Calculations for the Coinage-Metal Fluorides: Comparisons of ArAuF, NeAuF, and Molecules MF2and MF3. Chemistry 2012. [DOI: 10.1002/chem.201203306] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Miao MS, Seshadri R. Rh2O3 versus IrO2: relativistic effects and the stability of Ir4+. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:215503. [PMID: 22543445 DOI: 10.1088/0953-8984/24/21/215503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Despite the wide-ranging applications of binary Rh and Ir oxides, their stability and trends in Rh and Ir oxidation states are not fully understood. Using first-principles electronic structure calculations, we demonstrate that the origin of the categorical stability of Ir(4+) is the relativistic contraction of the 6s orbital and, consequently, an expansion of 5d orbitals. Relativistic effects significantly stabilize Ir(4+)-containing metallic rutile IrO(2) over a wide range of O chemical potentials, despite the choice that Ir has of forming semiconducting corundum Ir(2)O(3). In contrast, Rh is found to display a wider stability range for corundum Rh(2)O(3) with Rh(3+) and a greater propensity for multiple oxidation states.
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Affiliation(s)
- M-S Miao
- Materials Department, University of California, Santa Barbara, CA 93106, USA.
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14
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Is rhodium tetroxide in the formal oxidation state VIII stable? a quantum chemical and matrix isolation investigation of rhodium oxides. Theor Chem Acc 2011. [DOI: 10.1007/s00214-011-0919-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Lein M, Rudolph M, Hashmi SK, Schwerdtfeger P. Homogeneous Gold Catalysis: Mechanism and Relativistic Effects of the Addition of Water to Propyne. Organometallics 2010. [DOI: 10.1021/om900710v] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthias Lein
- Center for Theoretical Chemistry and Physics, New Zealand Institute for Advanced Study, Massey University Auckland, Private Bag 102904, North Shore City, 0745 Auckland, New Zealand
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Stephen K. Hashmi
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Peter Schwerdtfeger
- Center for Theoretical Chemistry and Physics, New Zealand Institute for Advanced Study, Massey University Auckland, Private Bag 102904, North Shore City, 0745 Auckland, New Zealand
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16
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Himmel D, Knapp C, Patzschke M, Riedel S. How Far Can We Go? Quantum-Chemical Investigations of Oxidation State +IX. Chemphyschem 2010; 11:865-9. [DOI: 10.1002/cphc.200900910] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Gong Y, Zhou M, Kaupp M, Riedel S. Formation and Characterization of the Iridium Tetroxide Molecule with Iridium in the Oxidation State +VIII. Angew Chem Int Ed Engl 2009; 48:7879-83. [DOI: 10.1002/anie.200902733] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Gong Y, Zhou M, Kaupp M, Riedel S. Formation and Characterization of the Iridium Tetroxide Molecule with Iridium in the Oxidation State +VIII. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902733] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Grochala W. The theory-driven quest for a novel family of superconductors: fluorides. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b904204k] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Wdowik UD, Ruebenbauer K. Calibration of the isomer shift for the 77.34 keV transition in A197u using the full-potential linearized augmented plane-wave method. J Chem Phys 2008; 129:104504. [DOI: 10.1063/1.2973558] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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21
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Lehmann JF, Riedel S, Schrobilgen GJ. Behavior of BrO3F and ClO3F Toward Strong Lewis Acids and the Characterization of [XO2][SbF6] (X = Cl, Br) by Single Crystal X-ray Diffraction, Raman Spectroscopy, and Computational Methods. Inorg Chem 2008; 47:8343-56. [DOI: 10.1021/ic800929h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- John F. Lehmann
- Department of Chemistry, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Sebastian Riedel
- Department of Chemistry, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Gary J. Schrobilgen
- Department of Chemistry, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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22
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Riedel S, Kaupp M, Pyykkö P. Quantum Chemical Study of Trivalent Group 12 Fluorides. Inorg Chem 2008; 47:3379-83. [DOI: 10.1021/ic702384y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sebastian Riedel
- Department of Chemistry, University of Helsinki, POB 55 (A. I. Virtasen aukio 1), FIN-00014 Helsinki, Finland, Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton Ontario, Canada, and Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Martin Kaupp
- Department of Chemistry, University of Helsinki, POB 55 (A. I. Virtasen aukio 1), FIN-00014 Helsinki, Finland, Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton Ontario, Canada, and Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Pekka Pyykkö
- Department of Chemistry, University of Helsinki, POB 55 (A. I. Virtasen aukio 1), FIN-00014 Helsinki, Finland, Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton Ontario, Canada, and Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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23
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Wang X, Andrews L, Riedel S, Kaupp M. Mercury Is a Transition Metal: The First Experimental Evidence for HgF4. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200703710] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Wang X, Andrews L, Riedel S, Kaupp M. Mercury Is a Transition Metal: The First Experimental Evidence for HgF4. Angew Chem Int Ed Engl 2007; 46:8371-5. [PMID: 17899620 DOI: 10.1002/anie.200703710] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xuefang Wang
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904-4319, USA
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Abstract
The structures and stabilities of technetium fluorides in high oxidation states have been studied quantum-chemically at density functional theory (B3LYP) and coupled-cluster (CCSD(T)) levels. The calculations indicate clearly that technetium heptafluoride, TcF7, has a good chance of existence and preparation, thus providing the first heptafluoride in the 4d series. The [TcF6]+ cation, a potential precursor, is also computed to be thermochemically stable against gas-phase elimination reactions. The problem with such highly fluorinated complexes appears thus to be mainly in difficult synthetic access under typical condensed-phase conditions. Matrix-isolation techniques or gas-phase experiments appear to be better suited as starting points.
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Affiliation(s)
- Sebastian Riedel
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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Riedel S, Kaupp M. Where Is the Limit of Highly Fluorinated High-Oxidation-State Osmium Species? Inorg Chem 2006; 45:10497-502. [PMID: 17173405 DOI: 10.1021/ic061054y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The structures and stabilities of various osmium fluorides and oxyfluorides in high oxidation states have been studied by quantum-chemical calculations at DFT (B3LYP), MP2, CCSD, and CCSD(T) levels. The calculations indicate that the homoleptic fluorides all the way up to OsF8 may exist, even though OsF8 will be difficult to prepare. The last missing osmium oxyfluoride, OsOF6, is computed to be thermochemically stable against mononuclear gas-phase elimination reactions. The problem with the nonexistence of such highly fluorinated complexes appears thus to be mainly in difficult synthetic access under typical condensed-phase conditions. Matrix-isolation techniques might provide a means to characterize the highly fluorinated OsVIII and OsVII species.
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Affiliation(s)
- Sebastian Riedel
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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