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Christlmaier EM, Kats D, Alavi A, Usvyat D. Full Configuration Interaction Quantum Monte Carlo treatment of fragments embedded in a periodic mean field. J Chem Phys 2022; 156:154107. [DOI: 10.1063/5.0084040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present an embedded fragment approach for high-level quantum chemical calculations on local features in periodic systems. The fragment is defined as a set of localized orbitals (occupied and virtual) corresponding to a converged periodic Hartree-Fock solution. These orbitals serve as the basis for the in-fragment post-Hartree Fock treatment. The embedding field for the fragment, consisting of the Coulomb and exchange potential from the rest of the crystal, is included in the fragment's one-electron Hamiltonian. As an application of the embedded fragment approach we investigate the performanceof full configuration interaction quantum Monte Carlo (FCIQMC) with the adaptive shift. As the orbital choice we use the natural orbitals from the distinguishable cluster method with singles and doubles. FCIQMC is a stochastic approximation to the full CI method and can be routinely applied to much larger active spaces than the latter. This makes this method especially attractive in the context of open shell defects in crystals, where fragments of adequate size can be ratherlarge. As a test case we consider dissociation of a fluorine atom from a fluorographane surface. This process poses a challenge for high-level electronic structure models as both the static and dynamic correlations are essential here. Furthermore the active space for an adequate fragment (32 electrons in 173 orbitals) is already quite large even for FCIQMC. Despite this, FCIQMC delivers accurate dissociation and total energies.
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Affiliation(s)
| | - Daniel Kats
- Max-Planck-Institute for Solid State Research, Germany
| | - Ali Alavi
- Max-Planck-Institute for Solid State Research, Germany
| | - Denis Usvyat
- Institute of Chemistry, Humboldt University of Berlin, Germany
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2
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Mullan T, Maschio L, Saalfrank P, Usvyat D. Reaction barriers on non-conducting surfaces beyond periodic local MP2: Diffusion of hydrogen on \ce{\alpha-Al2O3}(0001) as a test case. J Chem Phys 2022; 156:074109. [DOI: 10.1063/5.0082805] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Lorenzo Maschio
- Dipartimento di Chimica, Università degli Studi di Torino, Italy
| | - Peter Saalfrank
- Institut für Chemie, Universität Potsdam Institut für Chemie, Germany
| | - Denis Usvyat
- Institute of Chemistry, Humboldt University of Berlin, Germany
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3
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Alessio M, Usvyat D, Sauer J. Chemically Accurate Adsorption Energies: CO and H2O on the MgO(001) Surface. J Chem Theory Comput 2018; 15:1329-1344. [DOI: 10.1021/acs.jctc.8b01122] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maristella Alessio
- Institut für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Denis Usvyat
- Institut für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Joachim Sauer
- Institut für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
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4
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Tsatsoulis T, Sakong S, Groß A, Grüneis A. Reaction energetics of hydrogen on Si(100) surface: A periodic many-electron theory study. J Chem Phys 2018; 149:244105. [DOI: 10.1063/1.5055706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Theodoros Tsatsoulis
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
- Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria
| | - Sung Sakong
- Institute of Theoretical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Axel Groß
- Institute of Theoretical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Andreas Grüneis
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
- Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria
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5
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Košata J, Merkl P, Teeratchanan P, Hermann A. Stability of Hydrogen Hydrates from Second-Order Møller-Plesset Perturbation Theory. J Phys Chem Lett 2018; 9:5624-5629. [PMID: 30179509 DOI: 10.1021/acs.jpclett.8b02274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The formation of gas hydrates and clathrates critically depends on the interaction between the host water network and the guest gas species. Density functional calculations can struggle to quantitatively capture these dispersion-type interactions. Here, we report wave function-based calculations on hydrogen hydrates that combine periodic Hartree-Fock with a localized treatment of electronic correlation. We show that local second-order Møller-Plesset perturbation theory (LMP2) reproduces the stability of the different filled-ice-like hydrates in excellent agreement with experimental data. In contrast to various dispersion-corrected density functional theory implementations, LMP2 correctly identifies the pressures needed to stabilize the C0, C1, and C2 hydrates and does not find a spurious region of stability for an ice-Ih-based dihydrate. Our results suggest that LMP2 or similar approaches can provide quantitative insights into the mechanisms of formation and eventual decomposition of molecular host-guest compounds.
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Affiliation(s)
- Jan Košata
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Padryk Merkl
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Pattanasak Teeratchanan
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Andreas Hermann
- Centre for Science at Extreme Conditions and SUPA, School of Physics and Astronomy , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
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6
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Usvyat D, Maschio L, Schütz M. Periodic and fragment models based on the local correlation approach. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2018. [DOI: 10.1002/wcms.1357] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Denis Usvyat
- Institut für ChemieHumboldt‐Universität zu BerlinBerlinGermany
| | - Lorenzo Maschio
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) CentreUniversità di TorinoTorinoItaly
| | - Martin Schütz
- Institut für ChemieHumboldt‐Universität zu BerlinBerlinGermany
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7
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Karttunen AJ, Usvyat D, Schütz M, Maschio L. Dispersion interactions in silicon allotropes. Phys Chem Chem Phys 2017; 19:7699-7707. [DOI: 10.1039/c6cp08873b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Periodic local-MP2 and DFT-D3 calculations show that dispersion interactions in silicon allotropes can change the energy ordering significantly.
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Affiliation(s)
- Antti J. Karttunen
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Aalto
- Finland
| | - Denis Usvyat
- Institut für Chemie
- Humboldt Universität zu Berlin
- D-12489 Berlin
- Germany
| | - Martin Schütz
- Institut für Chemie
- Humboldt Universität zu Berlin
- D-12489 Berlin
- Germany
| | - Lorenzo Maschio
- Dipartimento di Chimica, and NIS (Nanostructured Interfaces and Surfaces) centre
- Universitá di Torino
- Torino I-10125
- Italy
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8
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Marsoner Steinkasserer LE, Zarantonello A, Paulus B. Strong 1D localization and highly anisotropic electron-hole masses in heavy-halogen functionalized graphenes. Phys Chem Chem Phys 2016; 18:25629-25636. [PMID: 27711551 DOI: 10.1039/c6cp05188j] [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
While halogenation of graphene presents a fascinating avenue to the construction of a chemically and physically diverse class of systems, their application in photovoltaics has been hindered by often prohibitively large optical gaps. Herein we study the effects of partial bromination and chlorination on the structure and optoelectronic properties of both graphane and fluorographene. We find brominated and chlorinated fluorographene derivatives to be as stable as graphane with a detailed investigation of the systems band structure revealing significant 1D localization of the charge carriers as well as strongly electron-hole asymmetric effective masses. Lastly using G0W0 and BSE, we investigate the optical adsorption spectra of the aforementioned materials whose first adsorption peak is shown to lie close to the optimal peak position for photovoltaic applications (≈1.5 eV).
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Affiliation(s)
| | - Alessandra Zarantonello
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, D-14195 Berlin, Germany.
| | - Beate Paulus
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, D-14195 Berlin, Germany.
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Masur O, Schütz M, Maschio L, Usvyat D. Fragment-Based Direct-Local-Ring-Coupled-Cluster Doubles Treatment Embedded in the Periodic Hartree–Fock Solution. J Chem Theory Comput 2016; 12:5145-5156. [DOI: 10.1021/acs.jctc.6b00651] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oliver Masur
- Institut
für Physikalische und Theoretische Chemie, Universität Regensburg, 93049 Regensburg, Germany
| | - Martin Schütz
- Institut
für Physikalische und Theoretische Chemie, Universität Regensburg, 93049 Regensburg, Germany
| | - Lorenzo Maschio
- Dipartimento
di Chimica, and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino, via Giuria 5, I-10125 Torino, Italy
| | - Denis Usvyat
- Institut
für Physikalische und Theoretische Chemie, Universität Regensburg, 93049 Regensburg, Germany
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Sansone G, Maschio L, Usvyat D, Schütz M, Karttunen A. Toward an Accurate Estimate of the Exfoliation Energy of Black Phosphorus: A Periodic Quantum Chemical Approach. J Phys Chem Lett 2016; 7:131-136. [PMID: 26651397 DOI: 10.1021/acs.jpclett.5b02174] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The black phosphorus (black-P) crystal is formed of covalently bound layers of phosphorene stacked together by weak van der Waals interactions. An experimental measurement of the exfoliation energy of black-P is not available presently, making theoretical studies the most important source of information for the optimization of phosphorene production. Here, we provide an accurate estimate of the exfoliation energy of black-P on the basis of multilevel quantum chemical calculations, which include the periodic local Møller-Plesset perturbation theory of second order, augmented by higher-order corrections, which are evaluated with finite clusters mimicking the crystal. Very similar results are also obtained by density functional theory with the D3-version of Grimme's empirical dispersion correction. Our estimate of the exfoliation energy for black-P of -151 meV/atom is substantially larger than that of graphite, suggesting the need for different strategies to generate isolated layers for these two systems.
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Affiliation(s)
- Giuseppe Sansone
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino , via Giuria 5, I-10125 Torino, Italy
| | - Lorenzo Maschio
- Dipartimento di Chimica and NIS (Nanostructured Interfaces and Surfaces) Centre, Università di Torino , via Giuria 5, I-10125 Torino, Italy
| | - Denis Usvyat
- Institute for Physical and Theoretical Chemistry, University of Regensburg , Universitätsstraße 31, D-93040 Regensburg, Germany
| | - Martin Schütz
- Institute for Physical and Theoretical Chemistry, University of Regensburg , Universitätsstraße 31, D-93040 Regensburg, Germany
| | - Antti Karttunen
- Department of Chemistry, Aalto University , Kemistintie 1, FI-02150 Espoo, Finland
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