1
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Errulat D, Harriman KLM, Gálico DA, Kitos AA, Mansikkamäki A, Murugesu M. A trivalent 4f complex with two bis-silylamide ligands displaying slow magnetic relaxation. Nat Chem 2023:10.1038/s41557-023-01208-y. [PMID: 37231297 DOI: 10.1038/s41557-023-01208-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 04/17/2023] [Indexed: 05/27/2023]
Abstract
The best-performing single-molecule magnets (SMMs) have historically relied on pseudoaxial ligands delocalized across several coordinated atoms. This coordination environment has been found to elicit strong magnetic anisotropy, but lanthanide-based SMMs with low coordination numbers have remained synthetically elusive species. Here we report a cationic 4f complex bearing only two bis-silylamide ligands, Yb(III)[{N(SiMePh2)2}2][Al{OC(CF3)3}4], which exhibits slow relaxation of its magnetization. The combination of the bulky silylamide ligands and weakly coordinating [Al{OC(CF3)3}4]- anion provides a sterically hindered environment that suitably stabilizes the pseudotrigonal geometry necessary to elicit strong ground-state magnetic anisotropy. The resolution of the mJ states by luminescence spectroscopy is supported by ab initio calculations, which show a large ground-state splitting of approximately 1,850 cm-1. These results provide a facile route to access a bis-silylamido Yb(III) complex, and further underline the desirability of axially coordinated ligands with well-localized charges for high-performing SMMs.
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Affiliation(s)
- Dylan Errulat
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Katie L M Harriman
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Diogo A Gálico
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Alexandros A Kitos
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada.
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2
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Velkos G, Yang W, Yao YR, Sudarkova SM, Liu F, Avdoshenko SM, Chen N, Popov AA. Metallofullerene single-molecule magnet Dy 2O@ C2v(5)-C 80 with a strong antiferromagnetic Dy⋯Dy coupling. Chem Commun (Camb) 2022; 58:7164-7167. [PMID: 35670245 DOI: 10.1039/d1cc07176a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dysprosium-oxide clusterfullerene Dy2O@C2v(5)-C80 is a single-molecule magnet featuring antiferromagnetic superexchange Dy⋯Dy coupling via the μ2-O2- bridge, the strongest of its kind among {Dy2} complexes with non-radical bridges.
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Affiliation(s)
- Georgios Velkos
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.
| | - Wei Yang
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany. .,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, P. R. China.
| | - Yang-Rong Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, P. R. China.
| | - Svetlana M Sudarkova
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany. .,Chemistry Department, Moscow State University, 119991 Moscow, Russia
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.
| | - Stanislav M Avdoshenko
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.
| | - Ning Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, P. R. China.
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.
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3
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Ghosh M, Sepay N, Schollmeyer D, Sakiyama H, Mikuriya M, Mal D, Gayen A, Motin Seikh M, Saha S. Spacers directed self-assembly of heterobimetallic copper(II)-lanthanide(III) [Ln = Nd and Gd] moieties: Syntheses, structural diversities and magnetic properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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4
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Wang CM, Wu Z, Chen P, Tian YM, Sun WB. The Zn2Dy2 single-molecule magnet constructed by salen-type ligand and hydroximic acid. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Kumar P, Biswas S, Swain A, Acharya J, Kumar V, Kalita P, Gonzalez JF, Cador O, Pointillart F, Rajaraman G, Chandrasekhar V. Azide-Coordination in Homometallic Dinuclear Lanthanide(III) Complexes Containing Nonequivalent Lanthanide Metal Ions: Zero-Field SMM Behavior in the Dysprosium Analogue. Inorg Chem 2021; 60:8530-8545. [PMID: 34085810 DOI: 10.1021/acs.inorgchem.1c00249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of homometallic dinuclear lanthanide complexes containing nonequivalent lanthanide metal centers [Ln2(LH2)(LH)(CH3OH)(N3)]·xMeOH·yH2O [1, Ln = DyIII, x = 0, y = 2; 2, Ln = TbIII, x = 1, y = 1] have been synthesized [LH4 = 6-((bis(2-hydroxyethyl)amino)-N'-(2-hydroxybenzylidene)picolinohydrazide] and characterized. The dinuclear assembly contains two different types of nine-coordinated lanthanide centers, because the nonequivalent binding of the azide co-ligand as well as the varying coordination of the deprotonated Schiff base ligand. Detailed magnetic studies have been performed on the complexes 1 and 2. Complex 1 and its diluted analogue (15%) are zero-field SMMs with effective energy barriers (Ueff) of magnetization reversal equal to 59(3) K and 66(3) K and relaxation times of τ0 = 10(4) × 10-6 s and 10(4) × 10-8 s, respectively. On the other hand, complex 2 shows a field-induced SMM behavior. Combined ab initio and density functional theory calculations were performed to explain the experimental findings and to unravel the nature of the magnetic anisotropy, exchange-coupled spectra, and magnetic exchange interactions between the two lanthanide centers.
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Affiliation(s)
- Pawan Kumar
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur-208016, India
| | - Sourav Biswas
- Department of Geo-Chemistry, Keshav Deva Malaviya Institute of Petroleum Exploration, Dehradun-248915, India
| | - Abinash Swain
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai 400076, Mumbai
| | - Joydev Acharya
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur-208016, India
| | - Vierandra Kumar
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur-208016, India
| | - Pankaj Kalita
- Tata Institute of Fundamental Research, Gopanpally, Hyderabad-500107, India
| | - Jessica Flores Gonzalez
- Université de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Olivier Cador
- Université de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Fabrice Pointillart
- Université de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai 400076, Mumbai
| | - Vadapalli Chandrasekhar
- Department of Chemistry, Indian Institute of Technology-Kanpur, Kanpur-208016, India.,Tata Institute of Fundamental Research, Gopanpally, Hyderabad-500107, India
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6
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Caporale C, Sobolev AN, Phonsri W, Murray KS, Swain A, Rajaraman G, Ogden MI, Massi M, Fuller RO. Lanthanoid pyridyl-β-diketonate 'triangles'. New examples of single molecule toroics. Dalton Trans 2020; 49:17421-17432. [PMID: 33220677 DOI: 10.1039/d0dt02855j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Trinuclear lanthanoid clusters have been synthesised and investigated as toroidal spin systems. A pyridyl functionalised β-diketonate, 1,3-bis(pyridin-2-yl)propane-1,3-dione (o-dppdH) has been used to synthesise a family of clusters of the form [Dy3(OH)2(o-dppd)3Cl2(H2O)4]Cl2·7H2O (1), [Tb3(o-dppd)3(μ3-OH)2(CH3CH2OH)3Cl3][Tb3(o-dppd)3(μ3-OH)2(H2O)(CH3CH2OH)2Cl3]Cl2·H2O (2), [Ho3(OH)2(o-dppd)3Cl(H2O)5]Cl3·3H2O (3) and [Er3(OH)2(o-dppd)3Cl2(H2O)3(CH3OH)]Cl2·3H2O·CH3OH (4). Despite the previous occurrence of this structural motif in the literature, these systems have not been widely investigated in terms of torodic behaviour. Magnetic studies were used to further characterise the complexes. DC susceptibility studies support weak antiferromagnetic exchange in the complexes. Slow magnetic relaxation behaviour is observed in the dynamic AC magnetic studies for complex 1. Theoretical studies predict that complex 1 and 3 have a non-magnetic ground state based on a toroidal arrangement of spins. Changes to the coordination environment in 2 do not support a toroic spin state. The prolate nature of the ErIII centres in complex 4 and large transverse anisotropy do not support the toroidal arrangement of lanthanoid spins in the complex.
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Affiliation(s)
- Chiara Caporale
- School of Molecular and Life Sciences, Curtin University, Bentley, WA 6102, Australia
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7
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Acharya J, Ahmed N, Flores Gonzalez J, Kumar P, Cador O, Singh SK, Pointillart F, Chandrasekhar V. Slow magnetic relaxation in a homo dinuclear Dy(iii) complex in a pentagonal bipyramidal geometry. Dalton Trans 2020; 49:13110-13122. [PMID: 32930277 DOI: 10.1039/d0dt02881a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We hereby report a dinuclear Dy(iii) complex, [Dy(LH3)Cl2]2·2Et2O (1) (LH4 = 2,3-dihydroxybenzylidene)-2-(hydroxyimino)propanehydrazide where both the metal centres are in a pentagonal bipyramidal (PBP) geometry with the axial positions being occupied by negatively charged Cl- ions. The complex as well as it's 10% diluted analogue (110) do not show zero-field SMM behaviour. However, in the presence of small optimum dc fields the slow relaxation of magnetization was displayed. The effective energy barrier for 110 at 800 Oe of applied field was extracted as 83(17) K with τ0 = 2(4) × 10-12 s. Through a combined experimental and ab initio electronic structure calculations studies we have thoroughly analysed the role of the ligand field around the Dy(iii), present in pentagonal bipyramidal geometry, in contributing to the slow relaxation of magnetization.
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Affiliation(s)
- Joydev Acharya
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India.
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8
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Han T, Giansiracusa MJ, Li ZH, Ding YS, Chilton NF, Winpenny REP, Zheng YZ. Exchange-Biasing in a Dinuclear Dysprosium(III) Single-Molecule Magnet with a Large Energy Barrier for Magnetisation Reversal. Chemistry 2020; 26:6773-6777. [PMID: 32097529 DOI: 10.1002/chem.202000719] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Indexed: 11/05/2022]
Abstract
A dichlorido-bridged dinuclear dysprosium(III) single-molecule magnet [Dy2 L2 (μ-Cl)2 (thf)2 ] has been made by using a diamine-bis(phenolate) ligand, H2 L. Magnetic studies show an energy barrier for magnetisation reversal (Ueff ) around 1000 K. An exchange-biasing effect is clearly seen in magnetic hysteresis with steps up to 3 K. Ab initio calculations exclude the possibility of a pure dipolar origin of this effect leading to the conclusion that super-exchange through the chloride bridging ligands is important.
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Affiliation(s)
- Tian Han
- School of Science, Frontier Institute of Science and Technology (FIST), Research institute of Xi'an Jiaotong University (Zhejiang), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of, Sustainable Energy and Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Marcus J Giansiracusa
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Zi-Han Li
- School of Science, Frontier Institute of Science and Technology (FIST), Research institute of Xi'an Jiaotong University (Zhejiang), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of, Sustainable Energy and Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - You-Song Ding
- School of Science, Frontier Institute of Science and Technology (FIST), Research institute of Xi'an Jiaotong University (Zhejiang), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of, Sustainable Energy and Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.,Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Nicholas F Chilton
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Richard E P Winpenny
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yan-Zhen Zheng
- School of Science, Frontier Institute of Science and Technology (FIST), Research institute of Xi'an Jiaotong University (Zhejiang), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of, Sustainable Energy and Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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9
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Izuogu DC, Yoshida T, Cosquer G, Asegbeloyin JN, Zhang H, Thom AJW, Yamashita M. Periodicity of Single‐Molecule Magnet Behaviour of Heterotetranuclear Lanthanide Complexes across the Lanthanide Series: A Compendium. Chemistry 2020; 26:6036-6049. [DOI: 10.1002/chem.202000161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/04/2020] [Indexed: 11/06/2022]
Affiliation(s)
- David Chukwuma Izuogu
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aza-Aoba, Aramaki Sendai 980-8578 Japan
- Department of Pure and Industrial ChemistryUniversity of Nigeria, Nsukka 410001 Enugu State Nigeria
| | - Takefumi Yoshida
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aza-Aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research (AIMR)Tohoku University 2-1-1 Katahira Sendai 980-8577 Japan
| | - Goulven Cosquer
- Department of ChemistryGraduate School of ScienceHiroshima University 1-3-1 Kagamiyama Higashihiroshima 739-8526 Japan
| | - Jonnie N. Asegbeloyin
- Department of Pure and Industrial ChemistryUniversity of Nigeria, Nsukka 410001 Enugu State Nigeria
| | - Haitao Zhang
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aza-Aoba, Aramaki Sendai 980-8578 Japan
| | - Alex J. W. Thom
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Masahiro Yamashita
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aza-Aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research (AIMR)Tohoku University 2-1-1 Katahira Sendai 980-8577 Japan
- School of Materials Science and EngineeringNankai University Tianjin 300350 P.R. China
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10
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Guettas D, Gendron F, Fernandez Garcia G, Riobé F, Roisnel T, Maury O, Pilet G, Cador O, Le Guennic B. Luminescence‐Driven Electronic Structure Determination in a Textbook Dimeric Dy
III
‐Based Single‐Molecule Magnet. Chemistry 2020; 26:4389-4395. [DOI: 10.1002/chem.201905493] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Djamila Guettas
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615 CNRS, Université Claude Bernard Lyon 1, bâtiment Chevreul Avenue du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Frédéric Gendron
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226 Univ Rennes 1 35000 Rennes France
| | - Guglielmo Fernandez Garcia
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226 Univ Rennes 1 35000 Rennes France
- Dipartimento di Chimica “U.Schiff” and UdR INSTM Università degli Studi di Firenze Via della Lastruccia 3–13 50019 Sesto Fiorentino Italy
| | - François Riobé
- Univ Lyon Ens de Lyon, CNRS UMR 5182 Université Claude Bernard Lyon 1 Laboratoire de Chimie F69342 Lyon France
| | - Thierry Roisnel
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226 Univ Rennes 1 35000 Rennes France
| | - Olivier Maury
- Univ Lyon Ens de Lyon, CNRS UMR 5182 Université Claude Bernard Lyon 1 Laboratoire de Chimie F69342 Lyon France
| | - Guillaume Pilet
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615 CNRS, Université Claude Bernard Lyon 1, bâtiment Chevreul Avenue du 11 novembre 1918 69622 Villeurbanne cedex France
| | - Olivier Cador
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226 Univ Rennes 1 35000 Rennes France
| | - Boris Le Guennic
- CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226 Univ Rennes 1 35000 Rennes France
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11
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Pointillart F, Flores Gonzalez J, Montigaud V, Tesi L, Cherkasov V, Le Guennic B, Cador O, Ouahab L, Sessoli R, Kuropatov V. Redox- and solvato-magnetic switching in a tetrathiafulvalene-based triad single-molecule magnet. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00319k] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Simultaneous redox and solvato-magnetic switching was achieved for a dinuclear dysprosium single-molecule magnet involving an extended tetrathiafulvalene fused semiquinone based triad.
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Affiliation(s)
- Fabrice Pointillart
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Jessica Flores Gonzalez
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Vincent Montigaud
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Lorenzo Tesi
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU
- Università degli Studi di Firenze
- I50019 Sesto Fiorentino (Firenze)
- Italy
- Institute of Physical Chemistry
| | - Vladimir Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Boris Le Guennic
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Olivier Cador
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Lahcène Ouahab
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Roberta Sessoli
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU
- Università degli Studi di Firenze
- I50019 Sesto Fiorentino (Firenze)
- Italy
| | - Viacheslav Kuropatov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
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12
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Bera SP, Mondal A, Konar S. Investigation of the role of terminal ligands in magnetic relaxation in a series of dinuclear dysprosium complexes. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00558d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Three dinuclear dysprosium complexes have been studied to establish the role of terminal ligands in the magnetic properties of the complexes.
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Affiliation(s)
- Siba Prasad Bera
- Department of Chemistry
- Indian Institute of Science Education and Research
- (IISER)
- Bhopal 462066
- India
| | - Arpan Mondal
- Department of Chemistry
- Indian Institute of Science Education and Research
- (IISER)
- Bhopal 462066
- India
| | - Sanjit Konar
- Department of Chemistry
- Indian Institute of Science Education and Research
- (IISER)
- Bhopal 462066
- India
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13
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Zhu Z, Li XL, Liu S, Tang J. External stimuli modulate the magnetic relaxation of lanthanide single-molecule magnets. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00785d] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The magnetic relaxation of lanthanide single-molecule magnets (Ln-SMMs) can be modulated reversibly by external stimuli including light irradiation, thermal treatment, protonation/deprotonation and oxidation/reduction etc.
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Affiliation(s)
- Zhenhua Zhu
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Xiao-Lei Li
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Shuting Liu
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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14
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Li PX, Xie ZX, Jin AP, Li J, Guo GC. A new photochromic Gd-MOF with photoswitchable bluish-white to greenish-yellow emission based on electron transfer. Chem Commun (Camb) 2020; 56:14689-14692. [DOI: 10.1039/d0cc06019d] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new Gd-MOF exhibits interesting properties of photoswitchable bluish white light to greenish yellow light emission as a result of electron transfer (ET). Photoluminescence studies on the dual-emitter Gd-MOF, which paves the way for white emission though ET.
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Affiliation(s)
- Pei-Xin Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- People's Republic of China
| | - Zhi-Xin Xie
- Department of Chemistry
- Faculty of Arts and Science
- University of Toronto
- Toronto
- Canada
| | - Ai-Ping Jin
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- People's Republic of China
| | - Jing Li
- Department of Chemistry and Chemical Biology
- Rutgers University
- Piscataway
- USA
| | - Guo-Cong Guo
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- People's Republic of China
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15
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Liu XW, Wu Z, Chen JT, Li L, Chen P, Sun WB. Regulating the single-molecule magnetic properties of phenol oxygen-bridged binuclear lanthanide complexes through the electronic and spatial effect of the substituents. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01380f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Series of Dy2 SMMs displayed the nearly maximum tenfold increase in energy barrier and the hysteresis temperature increased from zero to 2.5 K using the electronic and spatial effect on substituent of the bridging ligand and co-ligands.
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Affiliation(s)
- Xiang-Wen Liu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Zhuo Wu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Ji-Tun Chen
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Li Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Wen-Bin Sun
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
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16
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Cador O, Le Guennic B, Ouahab L, Pointillart F. Decorated Tetrathiafulvalene-Based Ligands: Powerful Chemical Tools for the Design of Single-Molecule Magnets. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900981] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Olivier Cador
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Boris Le Guennic
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Lahcène Ouahab
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
| | - Fabrice Pointillart
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226; Univ Rennes, CNRS; F-35000 Rennes France
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17
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Magnetic Behavior of Luminescent Dinuclear Dysprosium and Terbium Complexes Derived from Phenoxyacetic Acid and 2,2’-Bipyridine. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5040056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two dinuclear lanthanide complexes [Dy2(L1)6(L2)2]·2EtOH (1) and [Tb2(L1)6(L2)2]·2EtOH (2) (HL1 = phenoxyacetic acid and L2 = 2,2’-bipyridine) were synthesized and the crystal structures were determined. In both complexes, the lanthanide centers are nine-coordinated and have a muffin geometry. Detailed magnetic study reveals the presence of field-induced single molecule magnet (SMM) behavior for complex 1, whereas complex 2 is non-SMM in nature. Further magnetic study with 1’, yttrium doped magnetically diluted sample of 1, disclosed the presence of Orbach and Raman relaxation processes with effective energy barrier, ∆E = 16.26 cm−1 and relaxation time, τo = 2.42 × 10−8 s. Luminescence spectra for complexes 1 and 2 in acetonitrile were studied which show characteristic emission peaks for DyIII and TbIII ions, respectively.
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18
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N3O6 versus N2O6 coordinated dysprosium slow magnetic relaxation in a tetrathiafulvalene-based dinuclear complex. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Ge JY, Chen Z, Qiu YR, Huo D, Zhang YQ, Wang P, Zuo JL. Modulating Magnetic Property of Phthalocyanine Supported MII–DyIII (M = Ni, Zn) Heterodinuclear Complexes. Inorg Chem 2019; 58:9387-9396. [DOI: 10.1021/acs.inorgchem.9b01179] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jing-Yuan Ge
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhongyan Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Ya-Ru Qiu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Dexuan Huo
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Peng Wang
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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20
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Yi X, Pointillart F, Le Guennic B, Jung J, Daiguebonne C, Calvez G, Guillou O, Bernot K. Rational engineering of dimeric Dy-based Single-Molecule Magnets for surface grafting. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Ge Y, Huang Y, Montenegro JLB, Cui Y, Liu W, Li Y, Wang BL. Synthesis, Structures, and Single-Molecule Magnetic Properties of Three Dy 2 Complexes. Chem Asian J 2019; 14:986-994. [PMID: 30628179 DOI: 10.1002/asia.201801643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/08/2019] [Indexed: 02/05/2023]
Abstract
To explore the influences of the subtle structural variations in the ligand backbones on the single-molecule magnetic properties of dinuclear dysprosium(III) complexes, three ligands-H2 L1 (H2 L1 =N1 ,N3 -bis(salicylaldehyde)diethylenetriamine), H2 L2 (H2 L2 =N1 ,N3 -bis(3-methoxysalicylidene)diethylenetriamine), and H2 L3 (H2 L3 =N1 ,N3 -bis(5-chlorosalicyladehyde)diethylenetriamine)-were synthesized and employed to prepare the expected dinuclear dysprosium(III) complexes. The three ligands differ in terms of the substituents at the benzene rings of the salicylaldehyde moieties. The reactions of Dy(NO3 )3 ⋅6 H2 O, pivalic acid, and the ligands H2 L1 , H2 L2 , and H2 L3 generated complexes with the formulae [Dy2 (L1 )2 (piv)2 ] (1), [Dy2 (L2 )2 (piv)2 ] (2), and [Dy2 (L3 )2 (piv)2 ]⋅ 2 MeCN (3), respectively. The purposeful attachment of the functional groups with varied sizes at the benzene rings of the salicylaldehyde backbones resulted in slight differences in the Dy-O-Dy bond angles and the Dy⋅⋅⋅Dy bond lengths in 1-3; consequently, the three complexes exhibited distinct magnetic properties. They all showed slow magnetization relaxation with energy barriers of 40.32 (1), 31.67 (2), and 33.53 K (3). Complete active space self-consistent field (CASSCF) calculations were performed on complexes 1-3 to rationalize the slight discrepancy observed in the magnetic behavior. The calculated results satisfactorily explained the experimental outcomes.
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Affiliation(s)
- Yu Ge
- College of Chemistry, Chemical Engineering and Materials, Science Soochow University, Suzhou, 215123, China
| | - Yuan Huang
- College of Chemistry, Chemical Engineering and Materials, Science Soochow University, Suzhou, 215123, China
| | | | - Yanfeng Cui
- College of Chemistry, Chemical Engineering and Materials, Science Soochow University, Suzhou, 215123, China
| | - Wei Liu
- College of Chemistry, Chemical Engineering and Materials, Science Soochow University, Suzhou, 215123, China
| | - Yahong Li
- College of Chemistry, Chemical Engineering and Materials, Science Soochow University, Suzhou, 215123, China
| | - Bao-Lin Wang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing, 210023, China
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22
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Huang G, Yi X, Gendron F, Le Guennic B, Guizouarn T, Daiguebonne C, Calvez G, Suffren Y, Guillou O, Bernot K. A supramolecular chain of dimeric Dy single molecule magnets decorated with azobenzene ligands. Dalton Trans 2019; 48:16053-16061. [DOI: 10.1039/c9dt03540k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
DyIII dimers decorated with photo-isomerizable azobenzene ligands behave as single-molecule magnets and self-organize into a supramolecular chain. Ab initio calculations, magnetic and optical properties are reported.
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23
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Zu X, Li J, Qian Y, Duan W, Zeng Q. Progress in self-assembly of TTF derivatives at HOPG interface. NEW J CHEM 2019. [DOI: 10.1039/c8nj05341c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Self-assembled structures of TTF derivatives can be observed according to different substituents.
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Affiliation(s)
- Xiaoyi Zu
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Jianqiao Li
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Yuxin Qian
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Wubiao Duan
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Qingdao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology (NCNST)
- Beijing 100190
- China
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24
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Cador O, Le Guennic B, Pointillart F. Electro-activity and magnetic switching in lanthanide-based single-molecule magnets. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00875f] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work reviews switching of single-molecule magnetic behaviour achieved through various stimuli such as temperature, light irradiation, redox processes, solvation/desolvation, and magnetic field.
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Affiliation(s)
- Olivier Cador
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Boris Le Guennic
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
| | - Fabrice Pointillart
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- F-35000 Rennes
- France
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25
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Wang J, Yang M, Sun J, Li H, Liu J, Wang Q, Li L, Ma Y, Zhao B, Cheng P. Enhancing the energy barrier of dysprosium( iii) single-molecule magnets by tuning the magnetic interactions through different N-oxide bridging ligands. CrystEngComm 2019. [DOI: 10.1039/c9ce01378d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The synergistic effect of strengthened Dy-Dy magnetic interactions and slightly enhanced symmetry of DyIII ions results in a great Ueff enhancement from 11.79 K to 226.73 K.
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26
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Zhang L, Chen P, Li HF, Tian YM, Yan PF, Sun WB. From zero-dimensional to one-dimensional chain N-oxide bridged compounds with enhanced single-molecule magnetic performance. Dalton Trans 2019; 48:4324-4332. [DOI: 10.1039/c9dt00210c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of zero-dimensional dinuclear dysprosium complexes bridged by pyridine-NO ligands were extended by double N-oxide bridged ligand to series of one-dimensional chain complexes with repeated Dy2 unit, they were structurally and magnetically characterized in this work.
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Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Hong-Feng Li
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Yong-Mei Tian
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Peng-Fei Yan
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
| | - Wen-Bin Sun
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education
- School of Chemistry and Material Science Heilongjiang University
- Harbin 150080
- P. R. China
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27
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Zhang L, Ma H, Wang ZQ, Tian YM, Zhang YQ, Sun WB. Double and triple pyridine-N-oxide bridged dinuclear Dysprosium(III) dimers and single-molecule magnetic properties. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Sran BS, Gonzalez JF, Montigaud V, Le Guennic B, Pointillart F, Cador O, Hundal G. Structural and magnetic investigations of a binuclear coordination compound of dysprosium(iii) dinitrobenzoate. Dalton Trans 2019; 48:3922-3929. [DOI: 10.1039/c8dt04253e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dysprosium(iii) dinitrobenzonate as a new single molecule magnet.
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Affiliation(s)
- Balkaran Singh Sran
- Department of Chemistry
- UGC Sponsored Centre of Advance Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Jessica Flores Gonzalez
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- 35000 Rennes
- France
| | - Vincent Montigaud
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- 35000 Rennes
- France
| | - Boris Le Guennic
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- 35000 Rennes
- France
| | - Fabrice Pointillart
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- 35000 Rennes
- France
| | - Olivier Cador
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
- 35000 Rennes
- France
| | - Geeta Hundal
- Department of Chemistry
- UGC Sponsored Centre of Advance Studies-II
- Guru Nanak Dev University
- Amritsar-143005
- India
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29
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Kalita P, Goura J, Manuel Herrera Martínez J, Colacio E, Chandrasekhar V. Homodinuclear {LnIII
2
} (LnIII
= GdIII
, TbIII
, HoIII
, and DyIII
) Complexes: Field-Induced SMM Behavior of the DyIII
and TbIII
Analogues. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pankaj Kalita
- School of Chemical Sciences; National Institute of Science Education and Research, HBNI; 752050, Odisha Bhubaneswar Jatni, Khurda - India
| | - Joydeb Goura
- School of Chemical Sciences; National Institute of Science Education and Research, HBNI; 752050, Odisha Bhubaneswar Jatni, Khurda - India
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Juan Manuel Herrera Martínez
- Departamento de Química Inorgánica; Facultad de Ciencias, Universidad de Granada; Avenida de Fuentenueva s/n 18071 Granada Spain
| | - Enrique Colacio
- Departamento de Química Inorgánica; Facultad de Ciencias, Universidad de Granada; Avenida de Fuentenueva s/n 18071 Granada Spain
| | - Vadapalli Chandrasekhar
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
- Tata Institute of Fundamental Research; 500 107 Gopanpally, Hyderabad - India
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30
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Guo M, Zhang YQ, Zhu Z, Tang J. Dysprosium Compounds with Hula-Hoop-like Geometries: The Influence of Magnetic Anisotropy and Magnetic Interactions on Magnetic Relaxation. Inorg Chem 2018; 57:12213-12221. [DOI: 10.1021/acs.inorgchem.8b01878] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mei Guo
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Zhenhua Zhu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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31
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Zhang L, Chen P, Li H, Tian Y, Yan P, Sun W. Structure and Single‐Molecule Magnetic Property of a Dinuclear Dy
2
Complex Bridged by the 4‐Methylpyridine
N
‐Oxide Ligand. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
| | - Hong‐Feng Li
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
| | - Yong‐Mei Tian
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
| | - Peng‐Fei Yan
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
| | - Wen‐Bin Sun
- Key Laboratory of Functional Inorganic Materials Chemistry of Ministry of Education School of Chemistry and Materials Science Heilongjiang University 74 Xuefu Road 150080 Harbin P. R. China
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32
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Tetrathiafulvalene-Based Magnets of Lanthanides. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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33
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Díaz-Ortega IF, Herrera JM, Aravena D, Ruiz E, Gupta T, Rajaraman G, Nojiri H, Colacio E. Designing a Dy2 Single-Molecule Magnet with Two Well-Differentiated Relaxation Processes by Using a Nonsymmetric Bis-bidentate Bipyrimidine-N-Oxide Ligand: A Comparison with Mononuclear Counterparts. Inorg Chem 2018; 57:6362-6375. [DOI: 10.1021/acs.inorgchem.8b00427] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ismael F. Díaz-Ortega
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - Juan Manuel Herrera
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - Daniel Aravena
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Tulika Gupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - H. Nojiri
- Institute for Materials Research, Tohoku University, Katahira, Sendai, 980-8577, Japan
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
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34
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Guo M, Xu Y, Wu J, Zhao L, Tang J. Geometry and magnetic interaction modulations in dinuclear Dy 2 single-molecule magnets. Dalton Trans 2018; 46:8252-8258. [PMID: 28612868 DOI: 10.1039/c7dt01121k] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Geometry and magnetic interaction modulations in a series of dinuclear dysprosium compounds, [Dy2Lz2(OAc)6]·2CH3OH (1), [Dy2Lz2(C6H5CO2)6]·2CH3CN (2), and [Dy2L2(SO3CF3)4THF4] (3) (Lz = 6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine; L = N-(2,3-dimethylbut-3-en-2-yl)-N-hydroxynitrous amide; THF = tetrahydrofuran), can effectively tune the relaxation dynamics of magnetization. The dysprosium centres of compounds 2 and 3 display a hula hoop-like geometry; however, those in 1 show the monocapped square antiprismatic geometries. Moreover, the Dy2 cores of compounds 1 and 3 were linked by μ2-η1:η1 and μ2-η1:η2 bridging modes, thus generating shorter intramolecular DyDy distances as compared to those in compound 2. Consequently, these three compounds demonstrate distinct magnetic properties. Compounds 1 and 2 behave as single-molecule magnets (SMMs) under an appropriate static dc field; in addition, 2 displays field-induced multiple relaxation processes under a 1000 Oe dc field. Compound 3 shows a high relaxation energy barrier of 102 K in the zero dc field. These three interesting compounds with Dy2 cores shed light on the coordination geometry and magnetic interactions for the modulation of the properties of SMMs.
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Affiliation(s)
- Mei Guo
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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35
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Ma F, Xiong J, Meng YS, Yang J, Sun HL, Gao S. Rational construction of a porous lanthanide coordination polymer featuring reversible guest-dependent magnetic relaxation behavior. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00814k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adjustment of a magnetic relaxation pathway by guest molecules is found in a porous dysprosium complex constructed by hybrid ligands.
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Affiliation(s)
- Fang Ma
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Jin Xiong
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Yin-Shan Meng
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Jing Yang
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Hao-Ling Sun
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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36
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Zhang YY, Yu JT, Li B, Li DJ, Gu ZG, Sun XF, Cai HL, Kostakis GE, Peng G. Chiral and kryptoracemic Dy(iii) complexes with field-induced single molecule magnet behavior. CrystEngComm 2018. [DOI: 10.1039/c8ce01052h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Crystalline mode modulation and magnetic relaxation manipulation can be realized by the introduction of different anions into mononuclear Dy(iii) single molecule magnets (SMMs).
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Affiliation(s)
- Ying-Ying Zhang
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jing-Tao Yu
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Bo Li
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- P. R. China
| | - De-Jing Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- 350002 Fuzhou
- P. R. China
| | - Zhi-Gang Gu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- 350002 Fuzhou
- P. R. China
| | - Xiao-Fan Sun
- Collaborative Innovation Center of Advanced Microstructures
- Lab of Solid State Microstructures
- School of Physics
- Nanjing University
- Nanjing 210093
| | - Hong-Ling Cai
- Collaborative Innovation Center of Advanced Microstructures
- Lab of Solid State Microstructures
- School of Physics
- Nanjing University
- Nanjing 210093
| | - George E. Kostakis
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton
- UK
| | - Guo Peng
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
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37
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Huang G, Yi X, Jung J, Guillou O, Cador O, Pointillart F, Le Guennic B, Bernot K. Optimization of Magnetic Relaxation and Isotopic Enrichment in Dimeric DyIIISingle-Molecule Magnets. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700842] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gang Huang
- Institut des Sciences Chimiques de Rennes (ISCR); INSA-Rennes; 20 Avenue des Buttes de Coësmes 35708 Rennes France
| | - Xiaohui Yi
- Institut des Sciences Chimiques de Rennes (ISCR); INSA-Rennes; 20 Avenue des Buttes de Coësmes 35708 Rennes France
| | - Julie Jung
- Institut des Sciences Chimiques de Rennes (ISCR); Université de Rennes 1; 263 Avenue de Général Leclerc 35042 Rennes France
- Max-Planck-Institut für Chemishe Energiekonversion; Stiftstr. 34-36 45470 Mülheim an der Ruhr Germany
| | - Olivier Guillou
- Institut des Sciences Chimiques de Rennes (ISCR); INSA-Rennes; 20 Avenue des Buttes de Coësmes 35708 Rennes France
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes (ISCR); Université de Rennes 1; 263 Avenue de Général Leclerc 35042 Rennes France
| | - Fabrice Pointillart
- Institut des Sciences Chimiques de Rennes (ISCR); Université de Rennes 1; 263 Avenue de Général Leclerc 35042 Rennes France
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes (ISCR); Université de Rennes 1; 263 Avenue de Général Leclerc 35042 Rennes France
| | - Kevin Bernot
- Institut des Sciences Chimiques de Rennes (ISCR); INSA-Rennes; 20 Avenue des Buttes de Coësmes 35708 Rennes France
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38
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Speed S, Feng M, Fernandez Garcia G, Pointillart F, Lefeuvre B, Riobé F, Golhen S, Le Guennic B, Totti F, Guyot Y, Cador O, Maury O, Ouahab L. Lanthanide complexes involving multichelating TTF-based ligands. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00546b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The TTF-based skeleton could be alkylated with either the di(pyrazol-1-yl)-4-pyridyl (L1) or dimethyl-2,2′-bipyridine (L2) to design multichelating ligands. The ([Yb2(hfac)6(L1)]·2(CH2Cl2)·C6H14 (1) and [Ln2(hfac)6(L2)]·CH2Cl2 (Ln = Yb (2) and Dy (3)) complexes which display either SMM behaviour with the hysteresis loop at 0.5 K or multi-NIR emissions.
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39
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Yao B, Gu B, Su M, Li G, Ma Y, Li L, Wang Q, Cheng P, Zhang X. Single-molecule magnet behavior in a mononuclear dysprosium(iii) complex with 1-methylimidazole. RSC Adv 2017. [DOI: 10.1039/c6ra25038f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using 1-methylimidazole ligand and Dy(hfac)3·2H2O salt achieved a new single-molecule magnet of [Dy(hfac)3·(1-MeIm)2] with an energy barrier of 42.54 K.
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Affiliation(s)
- Binling Yao
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Bin Gu
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Meihui Su
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Guoliang Li
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Yue Ma
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Licun Li
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Qinglun Wang
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Peng Cheng
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- TKL of Metal and Molecule Based Material Chemistry
- Nankai University
- Tianjin 300071
| | - Xuan Zhang
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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40
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Xiong J, Ding HY, Meng YS, Gao C, Zhang XJ, Meng ZS, Zhang YQ, Shi W, Wang BW, Gao S. Hydroxide-bridged five-coordinate Dy III single-molecule magnet exhibiting the record thermal relaxation barrier of magnetization among lanthanide-only dimers. Chem Sci 2016; 8:1288-1294. [PMID: 28451271 PMCID: PMC5359878 DOI: 10.1039/c6sc03621j] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 10/01/2016] [Indexed: 12/24/2022] Open
Abstract
A hydroxide-bridged five-coordinate dysprosium(iii) dimer with short Dy–O bonds was synthesized.
A hydroxide-bridged centrosymmetric DyIII dimer with each DyIII being five-coordinated has been synthesized using bulky hindered phenolate ligands. Magnetic studies revealed that this compound exhibits a slow magnetic relaxation of a single-ion origin together with a step-like magnetic hysteresis of the magnetic coupled cluster. The thermal relaxation barrier of magnetization is 721 K in the absence of a static magnetic field, while the intramolecular magnetic interaction is very large among reported 4f-only dimers. CASSCF calculations with a larger active space were performed to understand the electronic structure of the compound. The thermal relaxation regime and the quantum tunneling regime are well separated, representing a good model to study the relaxation mechanism of SMMs with intramolecular Dy–Dy magnetic interactions.
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Affiliation(s)
- Jin Xiong
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
| | - Hai-Yan Ding
- Jiangsu Key Laboratory for NSLSCS , School of Physical Science and Technology , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Yin-Shan Meng
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
| | - Chen Gao
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
| | - Xue-Jing Zhang
- Department of Chemistry , Key Laboratory of Advanced Energy Materials Chemistry (MOE) , State Key Laboratory of Elemento-Organic Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Zhao-Sha Meng
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS , School of Physical Science and Technology , Nanjing Normal University , Nanjing 210023 , P. R. China
| | - Wei Shi
- Department of Chemistry , Key Laboratory of Advanced Energy Materials Chemistry (MOE) , State Key Laboratory of Elemento-Organic Chemistry , Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Bing-Wu Wang
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
| | - Song Gao
- Beijing National Laboratory of Molecular Science , College of Chemistry and Molecular Engineering , State Key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University , Beijing , 100871 , P. R. China . ; ; http://www.chem.pku.edu.cn/mmm/
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41
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Jiang Y, Holmberg RJ, Habib F, Ungur L, Korobkov I, Chibotaru LF, Murugesu M. Probing the structural and magnetic properties of a new family of centrosymmetric dinuclear lanthanide complexes. RSC Adv 2016. [DOI: 10.1039/c6ra12070a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of centrosymmetric dinuclear lanthanide complexes, including GdIII (1), DyIII (2), HoIII (3), ErIII (4) and YbIII (5), have been synthesized and studied for the effects of lanthanide contraction on their magnetic properties.
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Affiliation(s)
- Y. Jiang
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - R. J. Holmberg
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - F. Habib
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - L. Ungur
- Theory of Nanomaterials Group and INPAC Institute for Nanoscale Physics and Chemistry
- Katholieke Universiteit Leuven
- 3001 Leuven
- Belgium
| | - I. Korobkov
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - L. F. Chibotaru
- Theory of Nanomaterials Group and INPAC Institute for Nanoscale Physics and Chemistry
- Katholieke Universiteit Leuven
- 3001 Leuven
- Belgium
| | - M. Murugesu
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada K1N 6N5
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42
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Murashima K, Karasawa S, Yoza K, Inagaki Y, Koga N. 3- and 4-(α-diazobenzyl)pyridine-N-oxides as photoresponsive magnetic couplers for 2p–4f heterospin systems: formation of carbene–TbIII and carbene–DyIII single-molecule magnets. Dalton Trans 2016; 45:7067-77. [DOI: 10.1039/c6dt00420b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dinuclear TbIII – and DyIII – D1pyO complexes were photolyzed to afford heterospin SMMs with Ueff/kB = 30 and 39 K, respectively.
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Affiliation(s)
- Kensuke Murashima
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
| | - Satoru Karasawa
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
- PRESTO
| | | | - Yuji Inagaki
- Department of Applied Quantum Physics
- Kyushu University
- Fukuoka
- Japan
| | - Noboru Koga
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka
- Japan
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43
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Han T, Ding YS, Zheng YZ. Lanthanide Clusters Toward Single-Molecule Magnets. RECENT DEVELOPMENT IN CLUSTERS OF RARE EARTHS AND ACTINIDES: CHEMISTRY AND MATERIALS 2016. [DOI: 10.1007/430_2016_9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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44
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Zhang J, Zhang H, Chen Y, Zhang X, Li Y, Liu W, Dong Y. A series of dinuclear lanthanide complexes with slow magnetic relaxation for Dy2 and Ho2. Dalton Trans 2016; 45:16463-16470. [DOI: 10.1039/c6dt02962k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Seven dinuclear complexes [Ln2L2(C2H5OH)2(NO3)2]·0.5py were prepared and characterized; complex 4 exhibits SMM behavior with a Ueff value of 66.7 K.
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Affiliation(s)
- Jin Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Haifeng Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yanmei Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Xiangfei Zhang
- Key Laboratory of Salt Lake Resources and Chemistry
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining 810008
- P. R. China
| | - Yahong Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Wei Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yaping Dong
- Key Laboratory of Salt Lake Resources and Chemistry
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining 810008
- P. R. China
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45
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Feng M, Speed S, Pointillart F, Lefeuvre B, Le Guennic B, Golhen S, Cador O, Ouahab L. Dysprosium‐ and Ytterbium‐Based Complexes Involving Tetrathiafulvalene Derivatives Functionalised with 2,2′‐Bipyridine or 2,6‐Di(pyrazol‐1‐yl)‐4‐pyridine. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Feng
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Saskia Speed
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Fabrice Pointillart
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Bertrand Lefeuvre
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Stéphane Golhen
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
| | - Lahcène Ouahab
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS – Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France, http://www.scienceschimiques.univ‐rennes1.fr
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46
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Pointillart F, Guizouarn T, Lefeuvre B, Golhen S, Cador O, Ouahab L. Rational Design of a Lanthanide-Based Complex Featuring Different Single-Molecule Magnets. Chemistry 2015; 21:16929-34. [DOI: 10.1002/chem.201502416] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Indexed: 11/11/2022]
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47
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Lanthanide Complexes with Multidentate Oxime Ligands as Single-Molecule Magnets and Atmospheric Carbon Dioxide Fixation Systems. Chemistry 2015; 21:13321-9. [DOI: 10.1002/chem.201501824] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Indexed: 11/07/2022]
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48
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Mishra S, Daniele S. Metal-Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials. Chem Rev 2015; 115:8379-448. [PMID: 26186083 DOI: 10.1021/cr400637c] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shashank Mishra
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), UMR 5256, Université Claude Bernard Lyon1 , 2 avenue Albert Einstein, 69626 Villeurbanne, France
| | - Stéphane Daniele
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), UMR 5256, Université Claude Bernard Lyon1 , 2 avenue Albert Einstein, 69626 Villeurbanne, France
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49
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Pointillart F, Jung J, Berraud-Pache R, Le Guennic B, Dorcet V, Golhen S, Cador O, Maury O, Guyot Y, Decurtins S, Liu SX, Ouahab L. Luminescence and single-molecule magnet behavior in lanthanide complexes involving a tetrathiafulvalene-fused dipyridophenazine ligand. Inorg Chem 2015; 54:5384-97. [PMID: 25965094 DOI: 10.1021/acs.inorgchem.5b00441] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction between the TTF-fused dipyrido[3,2-a:2',3'-c]phenazine (dppz) ligand (L) and 1 equiv of Ln(hfac)3·2H2O (hfac(-) = 1,1,1,5,5,5-hexafluoroacetyacetonate) or 1 equiv of Ln(tta)3·2H2O (tta(-) = 2-thenoyltrifluoroacetonate) (Ln(III) = Dy(III) or Yb(III)) metallic precursors leads to four mononuclear complexes of formula [Ln(hfac)3(L)]·C6H14 (Ln(III) = Dy(III) (1), Yb(III) (2)) and [Ln(tta)3(L)]·C6H14 (Ln(III) = Dy(III) (3), Yb(III) (4)), respectively. Their X-ray structures reveal that the Ln(III) ion is coordinated to the bischelating nitrogenated coordination site and adopts a D4d coordination environment. The dynamic magnetic measurements show a slow relaxation of the Dy(III) magnetization for 1 and 3 with parameters highlighting a slower relaxation for 3 than for 1 (τ0 = 4.14(±1.36) × 10(-6) and 1.32(±0.07) × 10(-6) s with Δ = 39(±3) and 63.7(±0.7) K). This behavior as well as the orientation of the associated magnetic anisotropy axes have been rationalized on the basis of both crystal field splitting parameters and ab initio SA-CASSCF/RASSI-SO calculations. Irradiation of the lowest-energy HOMO → LUMO ILCT absorption band induces a (2)F5/2 → (2)F7/2 Yb-centered emission for 2 and 4. For these Yb(III) compounds, Stevens operators method has been used to fit the thermal variation of the magnetic susceptibilities, and the resulting MJ splittings have been correlated with the emission lines.
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Affiliation(s)
- Fabrice Pointillart
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Julie Jung
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Romain Berraud-Pache
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Boris Le Guennic
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Vincent Dorcet
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Stéphane Golhen
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Olivier Cador
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Olivier Maury
- §Laboratoire de Chimie, l'ENS-LYON-UMR 5182, 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Yannick Guyot
- ∥Institut Lumière Matière, UMR 5306 CNRS-Université de Lyon 1, 10 rue Ada Byron, 69622 Villeurbanne Cedex, France
| | - Silvio Decurtins
- ‡Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Shi-Xia Liu
- ‡Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Lahcène Ouahab
- †Institut des Sciences Chimiques de Rennes UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
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50
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Bartolomé E, Bartolomé J, Melnic S, Prodius D, Shova S, Arauzo A, Luzón J, Badía-Romano L, Luis F, Turta C. Magnetic relaxation versus 3D long-range ordering in {Dy₂Ba(α-fur)₈}n furoate polymers. Dalton Trans 2015; 43:10999-1013. [PMID: 24911469 DOI: 10.1039/c4dt00538d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Dy-complex formulated as {[Dy2Ba(α-C4H3OCOO)8·(H2O)4]·2H2O}n, {Dy2Ba(α-fur)8}n, has been synthesized, structurally characterized, and magnetically and thermally investigated as a function of field and temperature, down to 85 mK. The α-furoate ligands consolidate 1D zig-zag chains formed by Dy2 dimers separated by Ba ions. Ab initio calculations were used to determine the easy anisotropy axis direction, the gyromagnetic tensor components and the energy levels of each Dy. The heat capacity and susceptibility measurements allowed us to conclude that intradimer and interdimer interactions are ferromagnetic and of the same order, J'/k(B) ≈ J''/k(B) = +0.55 K. In the absence of an applied magnetic field, the dynamic relaxation of the magnetization occurs through the fast (τ(T) ~ 10(-5) s) spin-reversal of each of the individual Dys through a quantum tunneling (QT) process. A long-range 3D ordered state is achieved at T(N) = 0.25 K, in which the ferromagnetically coupled zig-zag chains (J'/k(B) ≈ J''/k(B) = +0.528(1) K) running along the c-axis are antiferromagnetically coupled to the adjacent chains (J'''/k(B) = -0.021(1) K). Critical slowing down of the QT time constant is observed when the temperature approaches T(N). Under the application of a magnetic field, the QT relaxation is replaced by an Orbach process (with energy barrier U/k(B) = 68 K and τ0 ~ 10(-9) s at H = 2 kOe) and a very slow (τ(s) ∼ 0.2 s) relaxation process. We propose and demonstrate the proof of concept of a spintronic device, in which two different relaxation rates can be selected, and on/off switched by magnetic field biasing. The dynamical behavior of this compound is compared with another furoate to discuss the effect of competitive interactions.
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Affiliation(s)
- E Bartolomé
- Escola Universitària Salesiana de Sarrià (EUSS), Passeig Sant Joan Bosco 74, 08017-Barcelona, Spain.
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