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Swain A, Sharma T, Rajaraman G. Strategies to quench quantum tunneling of magnetization in lanthanide single molecule magnets. Chem Commun (Camb) 2023; 59:3206-3228. [PMID: 36789911 DOI: 10.1039/d2cc06041h] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Enhancing blocking temperature (TB) is one of the holy grails in Single Molecule Magnets(SMMs), as any future potential application in this class of molecules is directly correlated to this parameter. Among many factors contributing to a reduction of TB value, Quantum Tunnelling of Magnetisation (QTM), a phenomenon that is a curse or a blessing based on the application sought after, tops the list. Theoretical tools based on density functional and ab initio CASSCF/RASSI-SO methods have played a prominent role in estimating various spin Hamiltonian parameters and establishing the mechanism of magnetization relaxation in this class of molecules. Particularly, various strategies to quench QTM effects go hand-in-hand with experiments, and different methods proposed to quell QTM effects are scattered in the literature. In this perspective, we have explored various approaches that are proposed in the literature to quench QTM effects, and these include the role of (i) local symmetry of lanthanides, (ii) super-exchange interaction in {3d-4f} complexes, (iii) direct-exchange interaction in {radical-4f} and metal-metal bonded complexes to suppress the QTM, (iv) utilizing external stimuli such as an electric field or pressure to modulate the QTM and (v) avoiding QTM effects by stabilising toroidal states in 4f and {3d-4f} clusters. We believe the strategies summarized here will help to design new-generation SMMs.
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Affiliation(s)
- Abinash Swain
- Department of Chemistry, IIT Bombay, Powai, Mumbai - 400076, India.
| | - Tanu Sharma
- Department of Chemistry, IIT Bombay, Powai, Mumbai - 400076, India.
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2
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Li XZ, Tian CB, Sun QF. Coordination-Directed Self-Assembly of Functional Polynuclear Lanthanide Supramolecular Architectures. Chem Rev 2022; 122:6374-6458. [PMID: 35133796 DOI: 10.1021/acs.chemrev.1c00602] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lanthanide supramolecular chemistry is a fast growing and intriguing research field due to the unique photophysical, magnetic, and coordination properties of lanthanide ions (LnIII). Compared with the intensively investigated mononuclear Ln-complexes, polymetallic lanthanide supramolecular assemblies offer more structural superiority and functional advantages. In recent decades, significant progress has been made in polynuclear lanthanide supramolecules, varying from structural evolution to luminescent and magnetic functional materials. This review summarizes the design principles in ligand-induced coordination-driven self-assembly of polynuclear Ln-structures and intends to offer guidance for the construction of more elegant Ln-based architectures and optimization of their functional performances. Design principles concerning the water solubility and chirality of the lanthanide-organic assemblies that are vital in extending their applications are emphasized. The strategies for improving the luminescent properties and the applications in up-conversion, host-guest chemistry, luminescent sensing, and catalysis have been summarized. Magnetic materials based on supramolecular assembled lanthanide architectures are given in an individual section and are classified based on their structural features. Challenges remaining and perspective directions in this field are also briefly discussed.
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Affiliation(s)
- Xiao-Zhen Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Chong-Bin Tian
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Qing-Fu Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
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Corner SC, Goodwin CAP, Ortu F, Evans P, Zhang H, Gransbury GK, Whitehead GFS, Mills DP. Synthesis of heteroleptic yttrium and dysprosium 1,2,4-tris(trimethylsilyl)cyclopentadienyl complexes. Aust J Chem 2022. [DOI: 10.1071/ch21314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Affiliation(s)
- Dong Shao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing Jiangsu 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 Jiangsu 210023 China
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Li LL, Su HD, Liu S, Wang WZ. Enhancing the energy barrier by replacing the counterions in two holmium(iii)-pentagonal bipyramidal single-ion magnets. Dalton Trans 2020; 49:6703-6709. [PMID: 32367102 DOI: 10.1039/d0dt00905a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Based on a phosphine oxide ligand, HMPA (hexamethylphosphoric triamide), two mononuclear HoIII-pentagonal bipyramidal complexes were synthesized with the formulas [Ho(HMPA)2(H2O)5]2Cl6·2HMPA·2H2O (1) and [Ho(HMPA)2(H2O)5]Br3·2HMPA (2). Single-crystal X-ray diffraction results show that all HoIII ions in both the two complexes are hepta-coordinated and are located in pentagonal bipyramidal {HoO7} coordination polyhedrons constructed by two axial HMPA ligands and five equatorial water molecules. However, due to the employment of different halide ions as counterions, the second coordination sphere surrounding each [Ho(HMPA)2(H2O)5]3+ moiety is different in the two complexes: in 1, three Cl- ions, one water molecule and one HMPA ligand; in 2, three Br- ions and two HMPA ligands. Ac magnetic susceptibilities under zero dc field show that both the two complexes are single-ion magnets with effective energy barriers of 290 K and 320 K for 1 and 2, respectively. Compared with 1, the enhancement in the energy barrier of 2 is believed to be induced mainly by the change in the second coordination sphere rather than the minor differences in the {HoO7} polyhedrons.
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Affiliation(s)
- Lei-Lei Li
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, 710065, ShaanXi, China.
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Litvinova YM, Gayfulin YM, van Leusen J, Samsonenko DG, Lazarenko VA, Zubavichus YV, Kögerler P, Mironov YV. Metal–organic frameworks based on polynuclear lanthanide complexes and octahedral rhenium clusters. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00339h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of MOFs comprising tetrahedral lanthanide complexes, isonicotinate linkers, and the octahedral cluster anion [Re6S8(CN)6]4– demonstrate structure-directing effects of the rhenium cluster.
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Affiliation(s)
- Yulia M. Litvinova
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | - Yakov M. Gayfulin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | - Jan van Leusen
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Denis G. Samsonenko
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | | | - Yan V. Zubavichus
- Federal Research Center Boreskov Institute of Catalysis
- 630090 Novosibirsk
- Russia
| | - Paul Kögerler
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
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7
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Zhou GJ, Chen WP, Yu Y, Qin L, Han T, Zheng YZ. Filling the Missing Links of M3n Prototype 3d-4f and 4f Cyclic Coordination Cages: Syntheses, Structures, and Magnetic Properties of the Ni10Ln5 and the Er3n Wheels. Inorg Chem 2017; 56:12821-12829. [DOI: 10.1021/acs.inorgchem.7b01569] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guo-Jun Zhou
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
| | - Wei-Peng Chen
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
| | - Youzhu Yu
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
| | - Lei Qin
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
| | - Tian Han
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of
Education), Nankai University, Tianjin 300071, China
| | - Yan-Zhen Zheng
- Frontier Institute
of Science and Technology, and School of Science, Xi’an Jiaotong University, Xi’an 710054, China
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Deng YF, Han T, Yin B, Zheng YZ. On balancing the QTM and the direct relaxation processes in single-ion magnets – the importance of symmetry control. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00135e] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Two mononuclear trigonal-planar Co(ii) complexes with a similar coordination environment except for the symmetries were reported to exhibit distinct relaxation dynamics due to the effect of the QTM and direct process.
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Affiliation(s)
- Yi-Fei Deng
- Frontier Institute of Science and Technology (FIST)
- State Key Laboratory for Mechanical Behavior of Materials and School of Science
- Xi'an Jiaotong University
- Xi'an 710054
- China
| | - Tian Han
- Frontier Institute of Science and Technology (FIST)
- State Key Laboratory for Mechanical Behavior of Materials and School of Science
- Xi'an Jiaotong University
- Xi'an 710054
- China
| | - Bing Yin
- MOE Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Yan-Zhen Zheng
- Frontier Institute of Science and Technology (FIST)
- State Key Laboratory for Mechanical Behavior of Materials and School of Science
- Xi'an Jiaotong University
- Xi'an 710054
- China
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9
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Canaj AB, Kalofolias DA, Siczek M, Lis T, McNab R, Lorusso G, Inglis R, Evangelisti M, Milios CJ. Tetradecanuclearity in 3d–4f chemistry: relaxation and magnetocaloric effects in [NiII6LnIII8] species. Dalton Trans 2017; 46:3449-3452. [DOI: 10.1039/c7dt00102a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The syntheses, structures, relaxation and magnetocaloric properties of two new hetero-tetradecametallic 3d–4f complexes are reported.
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Affiliation(s)
| | | | - Milosz Siczek
- Faculty of Chemistry
- University of Wroclaw
- Wroclaw 50-383
- Poland
| | - Tadeusz Lis
- Faculty of Chemistry
- University of Wroclaw
- Wroclaw 50-383
- Poland
| | - Robbie McNab
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Giulia Lorusso
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Ross Inglis
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Marco Evangelisti
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- 50009 Zaragoza
- Spain
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Qin L, Yu YZ, Liao PQ, Xue W, Zheng Z, Chen XM, Zheng YZ. A "Molecular Water Pipe": A Giant Tubular Cluster {Dy 72 } Exhibits Fast Proton Transport and Slow Magnetic Relaxation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:10772-10779. [PMID: 28000959 DOI: 10.1002/adma.201603381] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/12/2016] [Indexed: 06/06/2023]
Abstract
A lanthanide cluster, PCC-72, which is the second largest, with 72 Dy(III) ions assembled into an unprecedented tubular structure, is synthesized. Remarkably, PCC-72 exhibits superionic proton conductivity (>10-4 S cm-1 ) under both ambient (with relative humidity RH < 75%) and hot (T > 90 °C, RH = 95%) conditions. Moreover, slow magnetic relaxation is observed, making PCC-72 the largest Dy(III) cluster that is a single-molecule magnet.
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Affiliation(s)
- Lei Qin
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710054, P. R. China
| | - You-Zhu Yu
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710054, P. R. China
| | - Pei-Qin Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Wei Xue
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zhiping Zheng
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721, USA
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Zhen Zheng
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Xi'an, 710054, P. R. China
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