1
|
Vasiliev AV, Sharifullin TZ, Demidova ED, Kremer RK, Kazin PE. A Dy-based single ion magnet in a SrLaGaO 4 matrix: enhanced parameters in an expanded crystal lattice. Dalton Trans 2023; 52:17747-17751. [PMID: 37970917 DOI: 10.1039/d3dt03387b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Dy3+ doped SrLaGaO4 exhibits unusually slow relaxation of magnetization determined by two widely separated excited Kramers doublets with a second remagnetization energy barrier of 223 cm-1. This value considerably exceeds that for analogous Ca(Y,Dy)AlO4 in spite of the apparently enlarged Dy3+ coordination sphere.
Collapse
Affiliation(s)
- Alexander V Vasiliev
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Timur Z Sharifullin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Elena D Demidova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Reinhard K Kremer
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
| | - Pavel E Kazin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| |
Collapse
|
2
|
Saito K, Kagawa S, Ogasawara M, Kato S. Multiple incorporation of copper and iron ions into the channel of hydroxyapatite. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2022.123673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
3
|
Elemo F, Schlittenhardt S, Sani T, Rajnák C, Linert W, Boča R, Thomas M, Ruben M. Field-Induced Single Molecule Magnetic Behavior of Mononuclear Cobalt(II) Schiff Base Complex Derived from 5-Bromo Vanillin. Inorganics 2022; 10:105. [DOI: 10.3390/inorganics10080105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A mononuclear Co(II) complex of a Schiff base ligand derived from 5-Bromo-vanillin and 4-aminoantipyrine, that has a compressed tetragonal bipyramidal geometry and exhibiting field-induced slow magnetic relaxation, has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and molecular spectroscopy. In the crystal packing, a hydrogen-bonded dimer structural topology has been observed with two distinct metal centers having slightly different bond parameters. The complex has been further investigated for its magnetic nature on a SQUID magnetometer. The DC magnetic data confirm that the complex behaves as a typical S = 3/2 spin system with a sizable axial zero-field splitting parameter D/hc = 38 cm−1. The AC susceptibility data reveal that the relaxation time for the single-mode relaxation process is τ = 0.16(1) ms at T = 2.0 K and BDC = 0.12 T.
Collapse
|
4
|
Kazin PE, Zykin MA, Dyakonov AK, Vasiliev AV, Karpov MA, Gorbachev EA, Sleptsova AE, Jansen M. Dy 3+ single ion magnet in the extended inorganic solid Ca(Y,Dy)AlO 4. Chem Commun (Camb) 2022; 58:12572-12575. [DOI: 10.1039/d2cc03668a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Confined in the extended solid with a widespread K2NiF4 structure type, cation Dy3+ exhibits magnetic bistability under a zero field.
Collapse
Affiliation(s)
- Pavel E. Kazin
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Mikhail A. Zykin
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Andrey K. Dyakonov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | | | - Maxim A. Karpov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Evgeny A. Gorbachev
- Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Anastasia E. Sleptsova
- Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Martin Jansen
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, Stuttgart 70569, Germany
| |
Collapse
|
5
|
Gorbachev EA, Kozlyakova ES, Trusov LA, Sleptsova AE, Zykin MA, Kazin PE. Design of modern magnetic materials with giant coercivity. Russ Chem Rev 2021. [DOI: 10.1070/rcr4989] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Abstract
The review is devoted to compounds and materials demonstrating extremely high magnetic hardness. The recent advances in the synthesis of modern materials for permanent magnets are considered, and a range of exotic compounds interesting for fundamental research is described. The key details of chemical composition, crystal structure and magnetic microstructure responsible for the appearance of high magnetic anisotropy and giant coercivity are analyzed. The challenges of developing the title materials are noted and strategies for their solution are discussed.
The bibliography includes 389 references.
Collapse
|
6
|
Zabala-lekuona A, Seco JM, Colacio E. Single-Molecule Magnets: From Mn12-ac to dysprosium metallocenes, a travel in time. Coord Chem Rev 2021; 441:213984. [DOI: 10.1016/j.ccr.2021.213984] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
7
|
Zykin MA, Dyakonov AK, Eliseev AA, Trusov LA, Kremer RK, Dinnebier RE, Jansen M, Kazin PE. Tb-based silicate apatites showing slow magnetization relaxation with identical parameters for the Tb 3+ and Dy 3+ counter ions. RSC Adv 2021; 11:6926-6933. [PMID: 35423173 PMCID: PMC8694933 DOI: 10.1039/d1ra00613d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 02/04/2021] [Indexed: 01/29/2023] Open
Abstract
Tb-diluted and Tb-rich apatite-type silicates with compositions Y7.75Tb0.25Ca2(SiO4)6O2 and Tb8Ca2(SiO4)6O2, respectively, exhibit field induced multiple slow relaxation of magnetization. The former reveals two slow relaxation paths, the latter only one with a longer relaxation time of several seconds. The relaxation features of the Tb-diluted one are comparable with those of analogue compounds, where Tb is replaced by Dy, as well as with those of a Tb-doped calcium phosphate apatite. The relaxation parameters of the Tb-rich compound virtually match those of the Dy-based analogue Dy8Ca2(SiO4)6O2. The latter represents the first instance of independence of magnetization relaxation on the nature of a paramagnetic rare-earth metal ion in single ion magnet like materials.
Collapse
Affiliation(s)
- Mikhail A Zykin
- Department of Chemistry, Lomonosov Moscow State University 119991 Moscow Russia +7 495 9393440
- Institute of General and Inorganic Chemistry RAS (IGIC RAS) 31 Leninsky Ave. 119991 Moscow Russia
| | - Andrey K Dyakonov
- Department of Chemistry, Lomonosov Moscow State University 119991 Moscow Russia +7 495 9393440
| | - Artem A Eliseev
- Department of Chemistry, Lomonosov Moscow State University 119991 Moscow Russia +7 495 9393440
| | - Lev A Trusov
- Department of Chemistry, Lomonosov Moscow State University 119991 Moscow Russia +7 495 9393440
| | - Reinhard K Kremer
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Robert E Dinnebier
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Martin Jansen
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Pavel E Kazin
- Department of Chemistry, Lomonosov Moscow State University 119991 Moscow Russia +7 495 9393440
| |
Collapse
|
8
|
Abstract
All-inorganic single-ion magnets representing paramagnetic ions incorporated in a crystalline diamagnetic matrix are reviewed. Key results and advantages of this approach in comparison with the common strategy based on molecular metal-organic complexes are considered, and some unsolved problems and future perspectives are discussed.
Collapse
Affiliation(s)
- Mikhail A Zykin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, 119991, Moscow, Russia
| | - Pavel E Kazin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, 119991, Moscow, Russia
| | - Martin Jansen
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany
| |
Collapse
|
9
|
Kazin PE, Zykin MA, Trusov LA, Vasiliev AV, Kremer RK, Dinnebier RE, Jansen M. Multiple slow relaxation of magnetization in Dy 3+ confined in the crystal matrix of rare-earth-calcium silicates with the apatite structure. Dalton Trans 2020; 49:2014-2023. [PMID: 31989121 DOI: 10.1039/c9dt04248b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Apatite-type silicates Y7.75Dy0.25Ca2(SiO4)6O2 and Dy8Ca2(SiO4)6O2 were prepared by high-temperature solid state synthesis. In the crystal lattice, Dy3+ partially substitutes Ca2+, preferably at the 6h Ca2-site, and forms a short bond of 2.2 Å with the intra-channel O2-. The imposed strong ligand field anisotropy provides large magnetic anisotropy, which manifests itself as slow relaxation of magnetization at low temperatures. The magnetic dynamics is characterized by three or two characteristic values of relaxation time, respectively, which may be attributed to a single Dy3+ center. A phenomenological model is proposed which explains this response in terms of single paramagnetic center multiple relaxation.
Collapse
Affiliation(s)
- Pavel E Kazin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | | | | | | | | | | | | |
Collapse
|
10
|
Zykin MA, Eliseev AA, Vasiliev AV, Kremer RK, Dinnebier RE, Jansen M, Kazin PE. Slow Relaxation of Magnetization in the Cobalt‐Containing Strontium Hydroxy/Fluoro‐Apatite. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mikhail A. Zykin
- Department of Chemistry Lomonosov Moscow State University 119991 Moscow Russia
| | - Artem A. Eliseev
- Department of Chemistry Lomonosov Moscow State University 119991 Moscow Russia
| | | | - Reinhard K. Kremer
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Robert E. Dinnebier
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Martin Jansen
- Max Planck Institute for Solid State Research Heisenbergstrasse 1 70569 Stuttgart Germany
| | - Pavel E. Kazin
- Department of Chemistry Lomonosov Moscow State University 119991 Moscow Russia
| |
Collapse
|
11
|
Kazin PE, Zykin MA, Trusov LA, Vasiliev AV. Magnetic properties of a linear dioxonickelate(II) ion imbedded in apatite-type strontium and barium phosphates. Mendeleev Communications 2019. [DOI: 10.1016/j.mencom.2019.07.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Zykin MA, Anokhin EO, Kazin PE. Cobalt-containing calcium fluorohydroxyapatites with properties of field-induced single-ion magnets. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2482-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Kazin PE, Zykin MA, Magdysyuk OV, Utochnikova VV, Gorbachev EA, Kremer RK, Schnelle W, Felser C, Jansen M. TbO + in a calcium apatite matrix featuring a triple trigger-type relaxation of magnetization. Dalton Trans 2019; 48:5299-5307. [PMID: 30933206 DOI: 10.1039/c9dt01120j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tb for Ca substituted hydroxyapatite ceramic samples with composition Ca10-xTbx(PO4)6(OH1-x/2-δ)2, where x = 0.1, 0.5, were synthesized by solid-state reaction at 1300 °C in air, and their crystal structure, vibrational spectra, luminescence, and magnetic properties were studied. Implanting Tb3+ into the calcium apatite crystal lattice results in formation of an effective TbO+ ion which displays a short terbium-oxygen bond of 2.15 Å and a stretching vibration at 534 cm-1. The Tb3+ electronic structure has been revealed by analyzing the luminescence spectra and dc/ac magnetization data. Accordingly, the ground state represents a pseudo doublet with MJ = ±6 and the first exited level is by 112 cm-1 higher in energy. The ion exhibits field induced magnetic bistability with the magnetization reversing over the first exited state. Three paths of magnetization relaxation with field-temperature controlled switching between the paths have been identified.
Collapse
Affiliation(s)
- Pavel E Kazin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Zykin MA, Eliseev AA, Pogosova MA, Trusov LA, Schnelle W, Felser C, Jansen M, Kazin PE. Impact of fluoride for hydroxide substitution on the magnetic properties of a Co-based single-ion magnet imbedded in the barium apatite crystal lattice. CrystEngComm 2019. [DOI: 10.1039/c8ce02042f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The atomic group O–Co–O persists in the apatite channel and retains a high energy barrier for magnetization reversal.
Collapse
Affiliation(s)
- Mikhail A. Zykin
- Department of Materials Science
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Artem A. Eliseev
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Mariam A. Pogosova
- Center for Electrochemical Energy Storage
- Skolkovo Institute of Science and Technology
- 121205 Moscow
- Russia
| | - Lev A. Trusov
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Walter Schnelle
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - Claudia Felser
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - Martin Jansen
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
- Max Planck Institute for Solid State Research
- 70569 Stuttgart
| | - Pavel E. Kazin
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| |
Collapse
|
15
|
Shi L, Shen FX, Shao D, Zhang YQ, Wang XY. Syntheses, structures, and magnetic properties of three two-dimensional cobalt(ii) single-ion magnets with a CoIIN4X2 octahedral geometry. CrystEngComm 2019. [DOI: 10.1039/c9ce00030e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Three two-dimensional CoII SIMs with (4,4) layer structures have been synthesized and characterized structurally and magnetically.
Collapse
Affiliation(s)
- Le Shi
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Fu-Xing Shen
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Dong Shao
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- China
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| |
Collapse
|
16
|
Schulte KA, Vignesh KR, Dunbar KR. Effects of coordination sphere on unusually large zero field splitting and slow magnetic relaxation in trigonally symmetric molecules. Chem Sci 2018; 9:9018-9026. [PMID: 30647894 PMCID: PMC6301199 DOI: 10.1039/c8sc02820f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/15/2018] [Indexed: 01/29/2023] Open
Abstract
Geometric control in mononuclear complexes has come to the forefront in the field of molecular magnets due to its profound effects on relaxation pathways and blocking temperature in single molecule magnets (SMMs). Herein we report the synthesis and magnetic characterization of six trigonally symmetric, divalent Fe, Co, and Ni molecules, with the rigid geometry enforced via the use of the tris-anionic, tetradentate ligand MST (N,N',N''-[2,2',2''-nitrilotris-(ethane-2,1-diyl)]tris(2,4,6-trimethylbenzenesulfonamide)). A systematic study on the effect of converting between trigonal monopyramidal complexes, (Me4N)[M(MST)], and trigonal bipyramidal complexes, (Me4N)[M(MST)(OH2)] was conducted experimentally and computationally. It was found that (Me4N)[Ni(MST)] exhibits a very large, near record zero-field splitting parameter (D) value of -434 cm-1, owing to an extremely low lying first excited state. The trigonal monopyramidal cobalt and iron complexes exhibit slow magnetic relaxation under applied fields, resulting in barriers of 45 K and 63.9 K respectively. Coordination of a single water molecule in the open axial site of the trigonal monopyramidal complexes exerts drastic dampening effects on the D value as well as slow relaxation. Computations reveal that coordination of water rotates the D zz axis away from the C 3 axis of symmetry resulting in a smaller D value. The aquo species (Me4N)[Co(MST)(OH2)] also exhibits magnetic relaxation under an applied field, but the barrier is reduced to 9.9 K. Water coordination totally quenches the magnetic behavior in the iron complex, and reduces the D value for nickel to -185 cm-1. These results showcase the drastic effect that a small change in the coordination environment can have on magnetic behavior, as well as that trigonal monopyramidal geometry can lead to near record D values.
Collapse
Affiliation(s)
- Kelsey A Schulte
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , USA .
| | - Kuduva R Vignesh
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , USA .
| | - Kim R Dunbar
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , USA .
| |
Collapse
|
17
|
Bunting PC, Atanasov M, Damgaard-Møller E, Perfetti M, Crassee I, Orlita M, Overgaard J, van Slageren J, Neese F, Long JR. A linear cobalt(II) complex with maximal orbital angular momentum from a non-Aufbau ground state. Science 2018; 362:science.aat7319. [DOI: 10.1126/science.aat7319] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/02/2018] [Accepted: 11/01/2018] [Indexed: 01/18/2023]
Abstract
Orbital angular momentum is a prerequisite for magnetic anisotropy, although in transition metal complexes it is typically quenched by the ligand field. By reducing the basicity of the carbon donor atoms in a pair of alkyl ligands, we synthesized a cobalt(II) dialkyl complex, Co(C(SiMe2ONaph)3)2 (where Me is methyl and Naph is a naphthyl group), wherein the ligand field is sufficiently weak that interelectron repulsion and spin-orbit coupling play a dominant role in determining the electronic ground state. Assignment of a non-Aufbau (dx2–y2, dxy)3(dxz, dyz)3(dz2)1 electron configuration is supported by dc magnetic susceptibility data, experimental charge density maps, and ab initio calculations. Variable-field far-infrared spectroscopy and ac magnetic susceptibility measurements further reveal slow magnetic relaxation via a 450–wave number magnetic excited state.
Collapse
Affiliation(s)
- Philip C. Bunting
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | - Mihail Atanasov
- Max-Planck-Insitut für Kohlenforschung, Mülheim an der Ruhr D-45470, Germany
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Academy Georgi Bontchev, Sofia 1113, Bulgaria
| | - Emil Damgaard-Møller
- Department of Chemistry and Centre for Materials Crystallography, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Mauro Perfetti
- Institut für Physikalische Chemie and Center for Integrated Quantum Science and Technology (IQST), Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Iris Crassee
- Univ. Grenoble Alpes, Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25 rue des Martyrs, 38042 Grenoble, France
| | - Milan Orlita
- Univ. Grenoble Alpes, Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25 rue des Martyrs, 38042 Grenoble, France
- Institute of Physics, Charles University, Ke Karlovu 5, 12116 Praha 2, Czech Republic
| | - Jacob Overgaard
- Department of Chemistry and Centre for Materials Crystallography, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Joris van Slageren
- Institut für Physikalische Chemie and Center for Integrated Quantum Science and Technology (IQST), Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Frank Neese
- Max-Planck-Insitut für Kohlenforschung, Mülheim an der Ruhr D-45470, Germany
| | - Jeffrey R. Long
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| |
Collapse
|
18
|
Yao PF, Chen YK, Lai CF, Li HY, Bian HD, Liu HF, Yao D, Huang FP. Hierarchical Assembly of a {Co 24} Cluster from Two Vertex-Fused {Co 13} Clusters and Their Single-Molecule Magnetism. Inorg Chem 2018; 57:9182-9189. [PMID: 29985614 DOI: 10.1021/acs.inorgchem.8b01211] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We present the synthesis, structural characterization, and magnetic properties of two high-nuclearity cobalt clusters formulated as [Co13(μ3-OH)3(μ3-Cl)(dpbt)5(ptd)Cl10][Co(H2O)2Cl2]·(CH3)2CHOH (1) and [Co24(μ3-OH)6(μ3-Cl)2(dpbt)10(ptd)2Cl16]·2CH3CH2OH (2), respectively (H2dpbt = 5,5'-bis(pyridin-2-yl)-3,3'-bis(1,2,4-triazole) and H2ptd = 3-(pyridin-2-yl)-1,2,4-triazine-5,6-diol). Compound 1 is composed of an inner [Co4(μ3-OH)3(μ3-Cl)] cubane and an outer [Co9(dpbt)5(ptd)Cl10] defective adamantane. Compound 2 reveals a giant {Co24} cluster possessing a dual-[Co12] skeleton from 1. The hierarchical assembly from 1 to 2 has been established and tracked through high-resolution electrospray ionization (HRESI-MS) analyses from the solvothermal reaction mother solution. Magnetic studies of 1 and 2 revealed the highly correlated spins, a glasslike magnetic phase transition at ca. 8 K, and slow relaxation behavior of SMM nature in the lower-temperature region (below 4 K).
Collapse
Affiliation(s)
- Peng-Fei Yao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China.,Key Laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environmental Engineering , Baise University , Baise , Guangxi 533000 , People's Republic of China
| | - Yun-Kai Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| | - Chao-Feng Lai
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| | - Hai-Ye Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| | - He-Dong Bian
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China.,School of Chemistry and Chemical Engineering , Guangxi University for Nationalities , Key Laboratory of Chemistry and Engineering of Forest Products, Nanning 530008 , People's Republic of China
| | - Han-Fu Liu
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| | - Di Yao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| | - Fu-Ping Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy , Guangxi Normal University , Guilin , 541004 , People's Republic of China
| |
Collapse
|
19
|
Zykin MA, Vasiliev AV, Trusov LA, Dinnebier RE, Jansen M, Kazin PE. Solid state solubility of copper oxides in hydroxyapatite. J SOLID STATE CHEM 2018; 262:38-43. [DOI: 10.1016/j.jssc.2018.03.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
20
|
Guo M, Wu J, Cador O, Lu J, Yin B, Le Guennic B, Tang J. Manipulating the Relaxation of Quasi- D 4 d Dysprosium Compounds through Alternation of the O-Donor Ligands. Inorg Chem 2018; 57:4534-4542. [PMID: 29613778 DOI: 10.1021/acs.inorgchem.8b00294] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three mononuclear DyIII complexes with the same auxiliary ligand Lz (2,4-diamino-6-pyridyl-1,3,5-triazine), [Dy(TTA)3Lz] (1Dy) (TTA = 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate), [Dy(acac)3Lz]·CH3OH·0.5H2O (2Dy) (acac = acetylacetonate), and [Dy(MQ)2Lz2]Br·CH3OH (3Dy) (HMQ = 2-methyl-8-quinolinol), have been synthesized through alteration of the ligands containing O donors. In all three complexes, the DyIII ions are eight-coordinate and submitted to pseudo- D4 d symmetry in the first coordination sphere. It is noteworthy that the TTA ligands in 1Dy are easily substituted by other bidentate capping ligands with O donors, leading to distinct magnetic properties, which were studied experimentally and via ab initio calculations. All three complexes were found to exhibit single-molecule magnet behavior with Ueff of 22 cm-1 (1Dy), 112 cm-1 (2Dy), and 56 cm-1 (3Dy) under zero applied dc field. Complex 1Dy demonstrates inferior SIM properties compared with 2Dy and 3Dy, which can be attributed to the strong electron-withdrawing effects of TTA ligands, as confirmed by theoretical calculations. However, butterfly-shaped magnetic hysteresis in 1Dy and 3Dy was observed at 1.9 K, while not in 2Dy.
Collapse
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
| | - Jianfeng Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , 710072 , P. R. China
| | - Olivier Cador
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , F-35000 Rennes , France
| | - Jingjing Lu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Bing Yin
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science , Northwest University , Xi'an , 710069 , P. R. China
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 , F-35000 Rennes , France
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China
| |
Collapse
|
21
|
Abstract
Single-ion magnets (SIMs), exhibiting slow magnetization relaxation in the absence of the magnetic field, originate from their single spin-carrier centre. In pursuit of high-performance magnetic properties, such as high spin-reversal barrier and high blocking temperature, various metal centres were investigated to establish SIMs, including 3d and 5d transition metal ions, 4f lanthanide ions, and 5f actinide ions, which possess unique zero-field splitting and magnetic properties. Therefore, proper ligand field is of great importance to different types of metals. In the given great breakthroughs since the first SIM, [Pc2 Tb]- (Pc=dianion of phthalocyanine), was reported, strategies of ligand field design have emerged. In this review, the developments of SIMs with different metal centres are summarized, as well as the possible strategies.
Collapse
Affiliation(s)
- Min Feng
- Key Laboratory of Bioinorganic and Synthetic Chemistry, of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry, of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| |
Collapse
|
22
|
Zykin MA, Babeshkin KA, Magdysyuk OV, Anokhin EO, Schnelle W, Felser C, Jansen M, Kazin PE. Slow Spin Relaxation in Dioxocobaltate(II) Anions Embedded in the Lattice of Calcium Hydroxyapatite. Inorg Chem 2017; 56:14077-14083. [PMID: 29112812 DOI: 10.1021/acs.inorgchem.7b02237] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pure-phase cobalt-doped calcium hydroxyapatite ceramic samples with composition Ca10(PO4)6[(CoO2)x(OH)1-2x]2, where x = 0-0.2, were synthesized by high-temperature solid-state reaction, and their crystal structures, vibrational spectra, and magnetic properties were studied. Co atoms are found to enter into the apatite trigonal channel formally substituting H atoms and forming bent dioxocobaltate(II) anions. The anion exhibits single-molecule-magnet (SMM) behavior: slow relaxation of magnetization below 8 K under a nonzero magnetic field with an energy barrier of 63 cm-1. The barrier value does not depend on the concentration of Co ions, virtually coincides with the zero-field-splitting energy as determined from direct-current magnetization, and is very close to the value obtained earlier for cobalt-doped strontium hydroxyapatite. Moreover, the vibration frequencies of the dioxocobaltate(II) anion are found to be the same in calcium and strontium apatite matrixes. The very weak dependence of the SMM parameters on the matrix nature in combination with good chemical and thermal stabilities of the compounds provides wide opportunities to exploit the intrinsic properties of such a SMM-like anion.
Collapse
Affiliation(s)
| | | | - Oxana V Magdysyuk
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, OX11 0DE Didcot, U.K
| | | | - Walter Schnelle
- Max Planck Institute for Chemical Physics of Solids , Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Claudia Felser
- Max Planck Institute for Chemical Physics of Solids , Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Martin Jansen
- Max Planck Institute for Chemical Physics of Solids , Nöthnitzer Strasse 40, 01187 Dresden, Germany.,Max Planck Institute for Solid State Research , Heisenbergstrasse 1, 70569 Stuttgart, Germany
| | | |
Collapse
|
23
|
Kazin PE, Zykin MA, Utochnikova VV, Magdysyuk OV, Vasiliev AV, Zubavichus YV, Schnelle W, Felser C, Jansen M. “Isolated” DyO+
Embedded in a Ceramic Apatite Matrix Featuring Single-Molecule Magnet Behavior with a High Energy Barrier for Magnetization Relaxation. Angew Chem Int Ed Engl 2017; 56:13416-13420. [DOI: 10.1002/anie.201706391] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/17/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Pavel E. Kazin
- Department of Chemistry; Moscow State University; 119991 Moscow Russia
| | - Mikhail A. Zykin
- Department of Materials Science; Moscow State University; 119991 Moscow Russia
| | | | - Oxana V. Magdysyuk
- Diamond Light Source Ltd; Harwell Science and Innovation Campus OX11 0DE Didcot UK
| | | | - Yan V. Zubavichus
- National Research Centre “Kurchatov Institute”; 123182 Moscow Russia
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
| | - Claudia Felser
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
| | - Martin Jansen
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
- Max-Planck-Institut für Festkörperforschung; 70569 Stuttgart Germany
| |
Collapse
|
24
|
Kazin PE, Zykin MA, Utochnikova VV, Magdysyuk OV, Vasiliev AV, Zubavichus YV, Schnelle W, Felser C, Jansen M. “Isolated” DyO+
Embedded in a Ceramic Apatite Matrix Featuring Single-Molecule Magnet Behavior with a High Energy Barrier for Magnetization Relaxation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pavel E. Kazin
- Department of Chemistry; Moscow State University; 119991 Moscow Russia
| | - Mikhail A. Zykin
- Department of Materials Science; Moscow State University; 119991 Moscow Russia
| | | | - Oxana V. Magdysyuk
- Diamond Light Source Ltd; Harwell Science and Innovation Campus OX11 0DE Didcot UK
| | | | - Yan V. Zubavichus
- National Research Centre “Kurchatov Institute”; 123182 Moscow Russia
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
| | - Claudia Felser
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
| | - Martin Jansen
- Max-Planck-Institut für Chemische Physik fester Stoffe; 01187 Dresden Germany
- Max-Planck-Institut für Festkörperforschung; 70569 Stuttgart Germany
| |
Collapse
|