1
|
Grazioli L, Schleicher LT, Stopkowicz S, Gauss J. Theoretical prediction of closed-shell paramagnetism for scandium and yttrium hydride. J Comput Chem 2024; 45:1215-1223. [PMID: 38334014 DOI: 10.1002/jcc.27305] [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: 09/29/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 02/10/2024]
Abstract
Following chemical intuition, one would expect that all closed-shell molecules are diamagnetic. However, it is known that this is not the case for some second-row hydrides with low-lying unoccupied π orbitals due to an unquenching of the total angular momentum in the presence of an external magnetic field. In this article, the transition-metal hydrides ScH and YH are investigated, assuming a similar unquenching effect involving low-lying unoccupied π and δ orbitals formed from the metal d orbitals rather than the p orbitals. We are comparing results obtained with various quantum-chemical methods (HF, CCSD, CCSD(T), CCSDT) and basis sets. The obtained positive values for the magnetizabilities clearly indicate paramagnetic behavior. Vibrational effects on the magnetizability tensor are also considered, but these effects are small and do not change the overall conclusion that both ScH and YH are further examples for closed-shell paramagnetism.
Collapse
Affiliation(s)
- Laura Grazioli
- Department Chemie, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Luca T Schleicher
- Department Chemie, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Stella Stopkowicz
- Fachrichtung Chemie, Universität des Saarlandes, Saarbrücken, Germany
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, Oslo, Norway
| | - Jürgen Gauss
- Department Chemie, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| |
Collapse
|
2
|
Stauch T, Ganoe B, Wong J, Lee J, Rettig A, Liang J, Li J, Epifanovsky E, Head-Gordon T, Head-Gordon M. Molecular magnetisabilities computed via finite fields: assessing alternatives to MP2 and revisiting magnetic exaltations in aromatic and antiaromatic species. Mol Phys 2021; 119. [DOI: 10.1080/00268976.2021.1990426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tim Stauch
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Brad Ganoe
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Jonathan Wong
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Joonho Lee
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Adam Rettig
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Jiashu Liang
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | - Jie Li
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
| | | | - Teresa Head-Gordon
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, USA
| | - Martin Head-Gordon
- Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, CA, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| |
Collapse
|
3
|
Rourke PMC, Gaiser C, Gao B, Ripa DM, Moldover MR, Pitre L, Underwood RJ. Refractive-index gas thermometry. METROLOGIA 2019; 56:10.1088/1681-7575/ab0dbe. [PMID: 31274930 PMCID: PMC6605082 DOI: 10.1088/1681-7575/ab0dbe] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The principles and techniques of primary refractive-index gas thermometry (RIGT) are reviewed. Absolute primary RIGT using microwave measurements of helium-filled quasispherical resonators has been implemented at the temperatures of the triple points of neon, oxygen, argon and water, with relative standard uncertainties ranging from 9.1 × 10-6 to 3.5 × 10-5. Researchers are now also using argon-filled cylindrical microwave resonators for RIGT near ambient temperature, with relative standard uncertainties between 3.8 × 10-5 and 4.6 × 10-5, and conducting relative RIGT measurements on isobars at low temperatures. RIGT at optical frequencies is progressing, and has been used to perform a Boltzmann constant measurement at room temperature with a relative standard uncertainty of 1.2 × 10-5. Uncertainty budgets from implementations of absolute primary microwave RIGT, relative primary microwave RIGT and absolute primary optical RIGT are provided.
Collapse
Affiliation(s)
| | - Christof Gaiser
- Physikalisch-Technische Bundesanstalt (PTB), Abbestrasse 2-12, 10587 Berlin, Germany
| | - Bo Gao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Daniele Madonna Ripa
- Applied Metrology and Engineering Division, Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Turin, Italy
| | - Michael R Moldover
- Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8360, United States of America
| | - Laurent Pitre
- Laboratoire Commun de Métrologie LNE-Cnam (LCM), 93210 La Plaine Saint-Denis, France
| | - Robin J Underwood
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| |
Collapse
|
4
|
Olejniczak M, Bast R, Pereira Gomes AS. On the calculation of second-order magnetic properties using subsystem approaches in a relativistic framework. Phys Chem Chem Phys 2017; 19:8400-8415. [DOI: 10.1039/c6cp08561j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The implementation of second-order magnetic properties in a frozen density embedding scheme in a four component relativistic framework is outlined and applied to model H2X–H2O systems (X = Se, Te, Po).
Collapse
Affiliation(s)
- Małgorzata Olejniczak
- Université de Lille
- CNRS
- UMR 8523 – PhLAM – Physique des Lasers
- Atomes et Molécules
- F-59000 Lille
| | - Radovan Bast
- High Performance Computing Group
- UiT The Arctic University of Norway
- N-9037 Tromsø
- Norway
| | | |
Collapse
|
5
|
Yoshizawa T, Hada M. Gauge-origin dependence of NMR shielding constants in the Douglas–Kroll–Hess method. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.10.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
6
|
The Douglas–Kroll–Hess method based on vector-potential-including Foldy–Wouthuysen transformation: Application to NMR shielding tensor. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.06.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
7
|
Iliaš M, Jensen HJA, Bast R, Saue T. Gauge origin independent calculations of molecular magnetisabilities in relativistic four-component theory. Mol Phys 2013. [DOI: 10.1080/00268976.2013.798436] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Miroslav Iliaš
- a Department of Chemistry, Faculty of Natural Sciences , Matej Bel University , –Banská Bystrica , Slovakia
| | - Hans Jørgen Aa. Jensen
- b Department of Physics, Chemistry and Pharmacy , University of Southern Denmark , Odense M , Denmark
| | - Radovan Bast
- c Laboratoire de Chimie et Physique Quantiques (UMR 5626) , CNRS/Université de Toulouse , 3 (Paul Sabatier), –, Toulouse , France
| | - Trond Saue
- c Laboratoire de Chimie et Physique Quantiques (UMR 5626) , CNRS/Université de Toulouse , 3 (Paul Sabatier), –, Toulouse , France
| |
Collapse
|
8
|
Yoshizawa T, Sakaki S. NMR shielding constants of CuX, AgX, and AuX (X = F, Cl, Br, and I) investigated by density functional theory based on the Douglas-Kroll-Hess Hamiltonian. J Comput Chem 2013; 34:1013-23. [DOI: 10.1002/jcc.23224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/11/2012] [Accepted: 12/13/2012] [Indexed: 11/11/2022]
|
9
|
Yoshizawa T, Nakajima T. A new computational scheme for the spin–orbit part of zero-field splitting tensor. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.08.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
10
|
Zuniga-Gutierrez B, Geudtner G, Köster AM. Magnetizability tensors from auxiliary density functional theory. J Chem Phys 2012; 137:094113. [DOI: 10.1063/1.4749243] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
|
11
|
Second-order generalized unrestricted Møller–Plesset perturbation theory for the spin–orbit part of zero-field splitting tensors. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.09.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
Affiliation(s)
- Takahito Nakajima
- Computational Molecular Science Research Team, Advanced Institute for Computational Science, RIKEN, 7-1-26 Minatojima-minami, Cyuo, Kobe, Hyogo 650-0047, Japan
| | - Kimihiko Hirao
- Director, Advanced Institute for Computational Science, RIKEN, 7-1-26 Minatojima-minami, Cyuo, Kobe, Hyogo 650-0047, Japan
| |
Collapse
|
13
|
Schwerdtfeger P, Assadollahzadeh B, Rohrmann U, Schäfer R, Cheeseman JR. Breakdown of the pseudopotential approximation for magnetizabilities and electric multipole moments: Test calculations for Au, AuF, and Snncluster (n⩽ 20). J Chem Phys 2011; 134:204102. [DOI: 10.1063/1.3591338] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
|