1
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Komeda J, Boudalis AK, Montenegro-Pohlhammer N, Antheaume C, Mizuno A, Turek P, Ruben M. Selective Transition Enhancement in a g-Engineered Diradical. Chemistry 2024; 30:e202400420. [PMID: 38563635 DOI: 10.1002/chem.202400420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
A diradical with engineered g-asymmetry was synthesized by grafting a nitroxide radical onto the [Y(Pc)2]⋅ radical platform. Various spectroscopic techniques and computational studies revealed that the electronic structures of the two spin systems remained minimally affected within the diradical system. Fluid-solution Electron Paramagnetic Resonance (EPR) experiments revealed a weak exchange coupling with |J| ~ 0.014 cm-1, subsequently rationalized by CAS-SCF calculations. Frozen solution continuous-wave (CW) EPR experiments showed a complicated and power-dependent spectrum that eluded analysis using the point-dipole model. Pulse EPR manipulations with varying microwave powers, or under varying magnetic fields, demonstrated that different resonances could be selectively enhanced or suppressed, based on their different tipping angles. In particular, Field-Swept Echo-Detected (FSED) spectra revealed absorptions of MW power-dependent intensities, while Field-Swept Spin Nutation (FSSN) experiments revealed two distinct Rabi frequencies. This study introduces a methodology to synthesize and characterize g-asymmetric two-spin systems, of interest in the implementation of spin-based CNOT gates.
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Affiliation(s)
- Joe Komeda
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Athanassios K Boudalis
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081, Strasbourg, France
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
| | - Nicolas Montenegro-Pohlhammer
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, 8370854, Chile
| | - Cyril Antheaume
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
| | - Asato Mizuno
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Philippe Turek
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081, Strasbourg, France
| | - Mario Ruben
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
- Institute of Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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2
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Little EJ, Mrozek J, Rogers CJ, Liu J, McInnes EJL, Bowen AM, Ardavan A, Winpenny REP. Title: experimental realisation of multi-qubit gates using electron paramagnetic resonance. Nat Commun 2023; 14:7029. [PMID: 37919283 PMCID: PMC10622571 DOI: 10.1038/s41467-023-42169-7] [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: 05/22/2023] [Accepted: 09/28/2023] [Indexed: 11/04/2023] Open
Abstract
Quantum information processing promises to revolutionise computing; quantum algorithms have been discovered that address common tasks significantly more efficiently than their classical counterparts. For a physical system to be a viable quantum computer it must be possible to initialise its quantum state, to realise a set of universal quantum logic gates, including at least one multi-qubit gate, and to make measurements of qubit states. Molecular Electron Spin Qubits (MESQs) have been proposed to fulfil these criteria, as their bottom-up synthesis should facilitate tuning properties as desired and the reproducible production of multi-MESQ structures. Here we explore how to perform a two-qubit entangling gate on a multi-MESQ system, and how to readout the state via quantum state tomography. We propose methods of accomplishing both procedures using multifrequency pulse Electron Paramagnetic Resonance (EPR) and apply them to a model MESQ structure consisting of two nitroxide spin centres. Our results confirm the methodological principles and shed light on the experimental hurdles which must be overcome to realise a demonstration of controlled entanglement on this system.
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Affiliation(s)
- Edmund J Little
- Photon Science Institute and School of Chemistry, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Jacob Mrozek
- Clarendon Laboratory, University of Oxford, Parks Road, OX1 3PU, Oxford, UK
| | - Ciarán J Rogers
- Photon Science Institute and School of Chemistry, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Junjie Liu
- Clarendon Laboratory, University of Oxford, Parks Road, OX1 3PU, Oxford, UK
| | - Eric J L McInnes
- Photon Science Institute and School of Chemistry, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Alice M Bowen
- Photon Science Institute and School of Chemistry, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK.
| | - Arzhang Ardavan
- Clarendon Laboratory, University of Oxford, Parks Road, OX1 3PU, Oxford, UK.
| | - Richard E P Winpenny
- Photon Science Institute and School of Chemistry, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK.
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3
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Tretyakov EV, Ovcharenko VI, Terent'ev AO, Krylov IB, Magdesieva TV, Mazhukin DG, Gritsan NP. Conjugated nitroxide radicals. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5025] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Tanimoto R, Suzuki S, Kozaki M, Kanzaki Y, Shiomi D, Sato K, Takui T, Tanaka R, Okada K. Magnetic Properties of Metal Clusters Coordinated with (Nitronyl Nitroxide)‐Substituted Amidinate Ligands. ChemistrySelect 2020. [DOI: 10.1002/slct.202002927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ryu Tanimoto
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Shuichi Suzuki
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
- Graduate School of Engineering Science Osaka University Toyonaka Osaka 560-8531 Japan
| | - Masatoshi Kozaki
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
- Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA) Sumiyoshi-ku Osaka Osaka 558-8585 Japan
| | - Yuki Kanzaki
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Daisuke Shiomi
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Kazunobu Sato
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Takeji Takui
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Rika Tanaka
- X-ray Crystal Analysis Laboratory Graduate School of Engineering Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Keiji Okada
- Graduate School of Science Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
- Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA) Sumiyoshi-ku Osaka Osaka 558-8585 Japan
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5
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(Pyrrole-2,5-Diyl)-Bis(Nitronyl Nitroxide) and-Bis(Iminonitroxide): Specific Features of the Synthesis, Structure, and Magnetic Properties. Molecules 2020; 25:molecules25071503. [PMID: 32224961 PMCID: PMC7180855 DOI: 10.3390/molecules25071503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/21/2020] [Accepted: 03/25/2020] [Indexed: 11/17/2022] Open
Abstract
In contrast to diradicals connected by alternant hydrocarbons, only a few studies have addressed diradicals connected by nonalternant hydrocarbons and their heteroatom derivatives. Here, the synthesis, structure, and magnetic properties of pyrrole-2,5-diyl-linked bis(nitronyl nitroxide) and bis(iminonitroxide) diradicals are described. The diradicals show characteristic electron spin resonance spectra in dilute glassy solutions, from which conclusions about the presence of distinct conformations, their symmetry, and interspin distance were made. X-ray diffraction analysis of the diradicals revealed that paramagnetic moieties lie in the plane of the pyrrole ring, because of the formation of an intramolecular hydrogen bond, ONO…HN, with O…H distances of 2.15-2.23 Å. The N-O groups participating in the formation of H-bonds have greater bond lengths (~1.29 Å) as compared with nonparticipating groups (~1.27 Å). The nitronyl nitroxide and iminonitroxide diradicals showed an intramolecular antiferromagnetic interaction, with J = -77.3 and -22.2 cm-1, respectively (H = -2JS1S2).
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6
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Sato K, Hirao R, Timofeev I, Krumkacheva O, Zaytseva E, Rogozhnikova O, Tormyshev VM, Trukhin D, Bagryanskaya E, Gutmann T, Klimavicius V, Buntkowsky G, Sugisaki K, Nakazawa S, Matsuoka H, Toyota K, Shiomi D, Takui T. Trityl-Aryl-Nitroxide-Based Genuinely g-Engineered Biradicals, As Studied by Dynamic Nuclear Polarization, Multifrequency ESR/ENDOR, Arbitrary Wave Generator Pulse Microwave Waveform Spectroscopy, and Quantum Chemical Calculations. J Phys Chem A 2019; 123:7507-7517. [PMID: 31373818 DOI: 10.1021/acs.jpca.9b07169] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Trityl and nitroxide radicals are connected by π-topologically controlled aryl linkers, generating genuinely g-engineered biradicals. They serve as a typical model for biradicals in which the exchange (J) and hyperfine interactions compete with the g-difference electronic Zeeman interactions. The magnetic properties underlying the biradical spin Hamiltonian for solution, including J's, have been determined by multifrequency CW-ESR and 1H ENDOR spectroscopy and compared with those obtained by quantum chemical calculations. The experimental J values were in good agreement with the quantum chemical calculations. The g-engineered biradicals have been tested as a prototype for AWG (Arbitrary Wave Generator)-based spin manipulation techniques, which enable GRAPE (GRAdient Pulse Engineering) microwave control of spins in molecular magnetic resonance spectroscopy for use in molecular spin quantum computers, demonstrating efficient signal enhancement of specific weakened hyperfine signals. Dynamic nuclear polarization (DNP) effects of the biradicals for 400 MHz nuclear magnetic resonance signal enhancement have been examined, giving efficiency factors of 30 for 1H and 27.8 for 13C nuclei. The marked DNP results show the feasibility of these biradicals for hyperpolarization.
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Affiliation(s)
- Kazunobu Sato
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Rei Hirao
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Ivan Timofeev
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,International Tomography Center SB RAS , Institutskaya 3A , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Olesya Krumkacheva
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,International Tomography Center SB RAS , Institutskaya 3A , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Elena Zaytseva
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Olga Rogozhnikova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Victor M Tormyshev
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Dmitry Trukhin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Elena Bagryanskaya
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry , Novosibirsk 630090 , Russia.,Novosibirsk State University , Novosibirsk 630090 , Russia
| | - Torsten Gutmann
- Eduard-Zintl Institute for Inorganic and Physical Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 8 , 64287 Darmstadt , Germany.,Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology , Universität Kassel , Heinrich-Plett Straße 40 , 34132 Kassel , Germany
| | - Vytautas Klimavicius
- Eduard-Zintl Institute for Inorganic and Physical Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 8 , 64287 Darmstadt , Germany
| | - Gerd Buntkowsky
- Eduard-Zintl Institute for Inorganic and Physical Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 8 , 64287 Darmstadt , Germany
| | - Kenji Sugisaki
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Shigeaki Nakazawa
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Hideto Matsuoka
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Kazuo Toyota
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Daisuke Shiomi
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
| | - Takeji Takui
- Department of Chemistry and Molecular Materials Science, Graduate School of Science , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan.,Research Support Department/University Research Administrator Center, University Administration Division , Osaka City University , 3-3-138 Sugimoto , Sumiyoshi-ku, Osaka 558-8585 , Japan
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7
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Haraguchi M, Tretyakov E, Gritsan N, Romanenko G, Gorbunov D, Bogomyakov A, Maryunina K, Suzuki S, Kozaki M, Shiomi D, Sato K, Takui T, Nishihara S, Inoue K, Okada K. (Azulene-1,3-diyl)-bis(nitronyl nitroxide) and (Azulene-1,3-diyl)-bis(iminonitroxide) and Their Copper Complexes. Chem Asian J 2017; 12:2929-2941. [PMID: 28940948 DOI: 10.1002/asia.201701085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 09/20/2017] [Indexed: 02/02/2023]
Abstract
In contrast to diradicals connected by alternant hydrocarbons, only a few studies on those connected by nonalternant hydrocarbons have been reported. The syntheses, structures, and magnetic properties of azulene-1,3-diyl linked bis(nitronyl nitroxide) (NN2 Az) and bis(iminonitroxide) (IN2 Az) diradicals and their Cu(hfac)2 (hfac=hexafluoroacetylacetonate) complexes were investigated. NN2 Az was shown to have an intramolecular ferromagnetic interaction with Jobs /kB =+10.0 K (H=-2JS1 ⋅S2 ) between (nitronyl nitroxide) spins, whereas IN2 Az was estimated to have a much weaker intramolecular magnetic interaction. The reactions of NN2 Az and IN2 Az with Cu(hfac)2 gave a 1:2 [{Cu(hfac)2 }2 (NN2 Az)] complex and a 1:1 [Cu(hfac)2 (IN2 Az)]⋅C6 H12 complex, respectively. [{Cu(hfac)2 }2 (NN2 Az)] showed strong intramolecular antiferromagnetic interactions (J1-Cu-R /kB ≈-800 K, J2-Cu-R /kB ≈-500 K) between the CuII spins and the coordinating NN spins, whereas [Cu(hfac)2 (IN2 Az)] exhibited a ferromagnetic exchange interaction (Jobs-Cu-R /kB =+114 K) between the CuII spin and the imino-coordinated iminonitroxide spin.
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Affiliation(s)
- Makoto Haraguchi
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Evgeny Tretyakov
- Vorozhtsov Institute of Organic Chemistry, Russian Academy of Sciences, Ak. Lavrentiev Avenue 9, 630090, Novosibirsk, Russian Federation.,Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russian Federation
| | - Nina Gritsan
- Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russian Federation.,Voevodsky Institute of Chemical Kinetics and Combustion, 3 ul. Institutskaya, 630090, Novosibirsk, Russian Federation
| | - Galina Romanenko
- International Tomography Center, Russian Academy of Sciences, 3a ul. Institutskaya, 630090, Novosibirsk, Russian Federation
| | - Dmitry Gorbunov
- Novosibirsk State University, Pirogova Street, 2, 630090, Novosibirsk, Russian Federation.,Voevodsky Institute of Chemical Kinetics and Combustion, 3 ul. Institutskaya, 630090, Novosibirsk, Russian Federation
| | - Artem Bogomyakov
- International Tomography Center, Russian Academy of Sciences, 3a ul. Institutskaya, 630090, Novosibirsk, Russian Federation
| | - Kseniya Maryunina
- Department of Chemistry, Graduate School of Science, Center for Chiral Science and Institute for Advanced Materials Research, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, 739-8526, Japan
| | - Shuichi Suzuki
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.,Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Masatoshi Kozaki
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Daisuke Shiomi
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Kazunobu Sato
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Takeji Takui
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Sadafumi Nishihara
- Department of Chemistry, Graduate School of Science, Center for Chiral Science and Institute for Advanced Materials Research, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, 739-8526, Japan
| | - Katsuya Inoue
- Department of Chemistry, Graduate School of Science, Center for Chiral Science and Institute for Advanced Materials Research, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, 739-8526, Japan
| | - Keiji Okada
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.,The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
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8
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Fedin MV, Veber SL, Bagryanskaya EG, Ovcharenko VI. Electron paramagnetic resonance of switchable copper-nitroxide-based molecular magnets: An indispensable tool for intriguing systems. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Sugisaki K, Toyota K, Sato K, Shiomi D, Kitagawa M, Takui T. An ab initio MO study of heavy atom effects on the zero-field splitting tensors of high-spin nitrenes: how the spin–orbit contributions are affected. Phys Chem Chem Phys 2014; 16:9171-81. [DOI: 10.1039/c4cp00822g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The CASSCF and hybrid CASSCF–MRMP2 methods reproduce the ZFS tensors of spin-septet 2,4,6-trinitrenopyridines, focusing on the heavy atom effects on the spin–orbit terms of the tensors.
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Affiliation(s)
- Kenji Sugisaki
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585, Japan
| | - Kazuo Toyota
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585, Japan
| | - Kazunobu Sato
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585, Japan
| | - Daisuke Shiomi
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585, Japan
| | - Masahiro Kitagawa
- Department of System Innovation
- Graduate School of Engineering Science
- Osaka University
- Osaka 560-8531, Japan
| | - Takeji Takui
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585, Japan
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10
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Furui T, Suzuki S, Kozaki M, Shiomi D, Sato K, Takui T, Okada K, Tretyakov EV, Tolstikov SE, Romanenko GV, Ovcharenko VI. Preparation and Magnetic Properties of Metal-Complexes from N-t-Butyl-N-oxidanyl-2-amino-(nitronyl nitroxide). Inorg Chem 2013; 53:802-9. [PMID: 24364815 DOI: 10.1021/ic4020898] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Takanori Furui
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Masatoshi Kozaki
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Daisuke Shiomi
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazunobu Sato
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takeji Takui
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Keiji Okada
- Department of Chemistry, Graduate
School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Evgeny V. Tretyakov
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Svyatoslav E. Tolstikov
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Galina V. Romanenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
| | - Victor I. Ovcharenko
- International Tomography
Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090 Novosibirsk, Russian Federation
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