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Moon J, Baek H, Kim J. Density functional and ab initio study of samarium dihalides, SmX 2 (X = I, Br, and Cl). Mol Phys 2019. [DOI: 10.1080/00268976.2018.1508781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jiwon Moon
- Department of Chemistry, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Heehyun Baek
- Department of Chemistry, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Joonghan Kim
- Department of Chemistry, The Catholic University of Korea, Bucheon, Republic of Korea
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Ground and low-lying excited states of DyCl studied by the four-component relativistic configuration interaction methods. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2296-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Dunning A, Petrov A, Schowalter SJ, Puri P, Kotochigova S, Hudson ER. Photodissociation spectroscopy of the dysprosium monochloride molecular ion. J Chem Phys 2015; 143:124309. [DOI: 10.1063/1.4931817] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander Dunning
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - Alexander Petrov
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Steven J. Schowalter
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - Prateek Puri
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | | | - Eric R. Hudson
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
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Dolg M, Cao X. Relativistic pseudopotentials: their development and scope of applications. Chem Rev 2011; 112:403-80. [PMID: 21913696 DOI: 10.1021/cr2001383] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Michael Dolg
- Theoretical Chemistry, University of Cologne, Greinstrasse 4, 50939 Cologne, Germany.
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Dolg M. Segmented Contracted Douglas–Kroll–Hess Adapted Basis Sets for Lanthanides. J Chem Theory Comput 2011; 7:3131-42. [DOI: 10.1021/ct200504u] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Michael Dolg
- Theoretical Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
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An ab initio study on the f-f hypersensitive transition intensities of lanthanide tribromide molecules. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.01.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Varga Z, Kolonits M, Hargittai M. Gas-Phase Structures of Iron Trihalides: A Computational Study of all Iron Trihalides and an Electron Diffraction Study of Iron Trichloride. Inorg Chem 2010; 49:1039-45. [DOI: 10.1021/ic901916q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zoltán Varga
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary
| | - Mária Kolonits
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary
| | - Magdolna Hargittai
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary
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Varga Z, Groen CP, Kolonits M, Hargittai M. Curious matrix effects: a computational, electron diffraction, and vibrational spectroscopic study of dysprosium triiodide. Dalton Trans 2010; 39:6221-30. [DOI: 10.1039/c001182g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Weigand A, Cao X, Yang J, Dolg M. Quasirelativistic f-in-core pseudopotentials and core-polarization potentials for trivalent actinides and lanthanides: molecular test for trifluorides. Theor Chem Acc 2009. [DOI: 10.1007/s00214-009-0584-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsukamoto S, Mori H, Tatewaki H, Miyoshi E. CASSCF and CASPT2 calculations for lanthanide trihalides LnX3 using model core potentials. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.04.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Groen CP, Varga Z, Kolonits M, Peterson KA, Hargittai M. Does the 4f Electron Configuration Affect Molecular Geometries? A Joint Computational, Vibrational Spectroscopic, and Electron Diffraction Study of Dysprosium Tribromide. Inorg Chem 2009; 48:4143-53. [DOI: 10.1021/ic802340g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Cornelis Petrus Groen
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary, and Department of Chemistry, Washington State University, Pullman, Washington 99164
| | - Zoltán Varga
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary, and Department of Chemistry, Washington State University, Pullman, Washington 99164
| | - Mária Kolonits
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary, and Department of Chemistry, Washington State University, Pullman, Washington 99164
| | - Kirk A. Peterson
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary, and Department of Chemistry, Washington State University, Pullman, Washington 99164
| | - Magdolna Hargittai
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, 1521 Budapest, Hungary, and Department of Chemistry, Washington State University, Pullman, Washington 99164
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Abstract
Metal halides are a relatively large class of inorganic compounds that participate in many industrial processes, from halogen metallurgy to the production of semiconductors. Because most metal halides are ionic crystals at ambient conditions, the term "molecular metal halides" usually refers to vapor-phase species. These gas-phase molecules have a special place in basic research because they exhibit the widest range of chemical bonding from the purely ionic to mostly covalent bonding through to weakly interacting systems. Although our focus is basic research, knowledge of the structural and thermodynamic properties of gas-phase metal halides is also important in industrial processes. In this Account, we review our most recent work on metal halide molecular structures. Our studies are based on electron diffraction and vibrational spectroscopy, and increasingly, we have augmented our experimental work with quantum chemical computations. Using both experimental and computational techniques has enabled us to determine intriguing structural effects with better accuracy than using either technique alone. We loosely group our discussion based on structural effects including "floppiness", relativistic effects, vibronic interactions, and finally, undiscovered molecules with computational thermodynamic stability. Floppiness, or serious "nonrigidity", is a typical characteristic of metal halides and makes their study challenging for both experimentalists and theoreticians. Relativistic effects are mostly responsible for the unique structure of gold and mercury halides. These molecules have shorter-than-expected bonds and often have unusual geometrical configurations. The gold monohalide and mercury dihalide dimers and the molecular-type crystal structure of HgCl(2) are examples. We also examined spin-orbit coupling and the possible effect of the 4f electrons on the structure of lanthanide trihalides. Unexpectedly, we found that the geometry of their dimers depends on the f electron configuration. Metal halides are unique in exhibiting strong vibronic interactions such as the Jahn-Teller effect and the related Renner-Teller effect. Some metal trihalide molecules have an almost T-shape due to static Jahn-Teller distortions. The nonlinear structure with a 150 degree bond angle of the chromium dichloride molecule demonstrates the Renner-Teller effect. Finally, we present a few examples of unknown structures that appear to be thermodynamically stable, including gold and silver triiodides and all silver subhalides. The combination of experimental and computational techniques has brought new insights to the structural chemistry of metal halides. We expect that the continuing progress in computational chemistry will shed further light on the intricate details of these and other molecular structures.
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Affiliation(s)
- Magdolna Hargittai
- Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, P.O. Box 91, H-1521 Budapest, Hungary
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Lanza G, Minichino C. How an Inert-Gas Matrix Can Modify the Molecular Properties of Lanthanide Trifluoride. Chemphyschem 2009; 10:507-11. [DOI: 10.1002/cphc.200800643] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Roos BO, Lindh R, Malmqvist PA, Veryazov V, Widmark PO, Borin AC. New relativistic atomic natural orbital basis sets for lanthanide atoms with applications to the Ce diatom and LuF3. J Phys Chem A 2008; 112:11431-5. [PMID: 18928264 DOI: 10.1021/jp803213j] [Citation(s) in RCA: 291] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
New basis sets of the atomic natural orbital (ANO) type have been developed for the lanthanide atoms La-Lu. The ANOs have been obtained from the average density matrix of the ground and lowest excited states of the atom, the positive ions, and the atom in an electric field. Scalar relativistic effects are included through the use of a Douglas-Kroll-Hess Hamiltonian. Multiconfigurational wave functions have been used with dynamic correlation included using second-order perturbation theory (CASSCF/CASPT2). The basis sets are applied in calculations of ionization energies and some excitation energies. Computed ionization energies have an accuracy better than 0.1 eV in most cases. Two molecular applications are included as illustration: the cerium diatom and the LuF3 molecule. In both cases it is shown that 4f orbitals are not involved in the chemical bond in contrast to an earlier claim for the latter molecule.
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Affiliation(s)
- Björn O Roos
- Department of Theoretical Chemistry, Chemical Center, PO Box 124, SE-221 00 Lund, Sweden.
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