1
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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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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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Synthesis, Crystal Structures, Photoluminescence and Magnetic Properties of Lanthanide(III) Complexes Based on 2-(Thiophen-2-ylselanyl)acetic Acid Ligand. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02266-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Roy S, Shukla P, Prakash Sahu P, Sun Y, Ahmed N, Chandra Sahoo S, Wang X, Kumar Singh S, Das S. Zero‐field Slow Magnetic Relaxation Behavior of Dy
2
in a Series of Dinuclear {Ln
2
} (Ln=Dy, Tb, Gd and Er) Complexes: A Combined Experimental and Theoretical Study. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soumalya Roy
- Department of Basic Sciences, Chemistry Discipline Institute of Infrastructure Technology Research And Management Near Khokhra Circle, Maninagar East Ahmedabad 380026, Gujarat India
| | - Pooja Shukla
- Department of Basic Sciences, Chemistry Discipline Institute of Infrastructure Technology Research And Management Near Khokhra Circle, Maninagar East Ahmedabad 380026, Gujarat India
| | - Prem Prakash Sahu
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi- 502285, Sangareddy Telangana India
| | - Yu‐Chen Sun
- State Key Laboratory of Coordination Chemistry Collaborative Innovation Center of Advanced Microstructures School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Naushad Ahmed
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi- 502285, Sangareddy Telangana India
| | | | - Xin‐Yi Wang
- State Key Laboratory of Coordination Chemistry Collaborative Innovation Center of Advanced Microstructures School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Saurabh Kumar Singh
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi- 502285, Sangareddy Telangana India
| | - Sourav Das
- Department of Basic Sciences, Chemistry Discipline Institute of Infrastructure Technology Research And Management Near Khokhra Circle, Maninagar East Ahmedabad 380026, Gujarat India
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5
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Pramanik K, Sun YC, Brandão P, Jana NC, Wang XY, Panja A. Macrocycle supported dinuclear lanthanide complexes with different β-diketonate co-ligands displaying zero field single-molecule magnetic behaviour. NEW J CHEM 2022. [DOI: 10.1039/d2nj01017h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three different sets of isomorphous dinuclear Gd/Dy complexes with an uncommon macrocyclic ligand and β-diketonate co-ligands were reported in which Dy2 analogues are zero field SMMs.
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Affiliation(s)
- Kuheli Pramanik
- Department of Chemistry, Gokhale Memorial Girls’ College, 1/1 Harish Mukherjee Road, Kolkata, 700020, India
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB, 721152, India
| | - Yu-Chen Sun
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Paula Brandão
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Narayan Ch. Jana
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB, 721152, India
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Anangamohan Panja
- Department of Chemistry, Gokhale Memorial Girls’ College, 1/1 Harish Mukherjee Road, Kolkata, 700020, India
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB, 721152, India
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6
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Mecchia Ortiz JH, Cabrosi D, Cruz C, Paredes-García V, Alborés P. Synthesis, structural characterization, and magnetic property study of {Cr 3Ln 3}, Ln = Gd and Dy complexes. Dalton Trans 2021; 51:624-637. [PMID: 34904980 DOI: 10.1039/d1dt03176g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have successfully prepared and structurally characterized triangle-in-triangle {Cr3Ln3} complexes with Ln = Gd and Dy employing alcohol-amine, N-methyldiethanolamine (H2mdea) and pivalate ligands. These complexes and the Yttrium analogue proved to be isostructural and crystallized in a P1 triclinic cell. DC and AC magnetic measurements were carried out and supported by quantum computations at DFT and CASSCF levels. DC magnetic data are dominated by the Cr(III)-Ln(III) antiferromagnetic interaction and by single-ion anisotropy in the case of the Dy(III) complex. Ln(III)-Ln(III) magnetic interactions are negligible, as well as Cr(III)-Cr(III) ones. From AC data, slow relaxation of the magnetization is observed at 0 DC applied magnetic field in the case of the Dy(III) complex below 4 K. From temperature and field dependence data, possible Raman and Orbach relaxation mechanisms are established in the absence of quantum tunnelling pathways, suggesting a successful suppression of the latter due to the Cr(III)-Dy(III) exchange interaction.
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Affiliation(s)
- Juan H Mecchia Ortiz
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Daiana Cabrosi
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Carlos Cruz
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 275, Santiago de Chile, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, Santiago, Chile
| | - Verónica Paredes-García
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 275, Santiago de Chile, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, Santiago, Chile
| | - Pablo Alborés
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
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7
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Wu J, Liu D, Yang Q, Ge Y, Tang J, Qi Z. Magnetic investigation in di- and tetranuclear lanthanide complexes. NEW J CHEM 2021. [DOI: 10.1039/d0nj04247a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Dinuclear and tetranuclear dysprosium-based complexes have been constructed by using a crab-like hydrazone ligand, with the former acting as a typical single-molecule magnet and the later showing diamagnetic ground state.
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Affiliation(s)
- Jianfeng Wu
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University
- Xi'an
- P. R. China
| | - Dan Liu
- Institute of Flexible Electronics (IFE), Northwestern Polytechnical University
- Xi’an
- China
| | - Qianqian Yang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yan Ge
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University
- Xi'an
- 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
| | - Zhenhui Qi
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, School of Life Sciences, Northwestern Polytechnical University
- Xi'an
- P. R. China
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8
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Xu SM, An ZW, Zhang W, Zhang YQ, Yao MX. Ligand field and anion-driven structures and magnetic properties of dysprosium complexes. CrystEngComm 2021. [DOI: 10.1039/d1ce00115a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Based on the organic ligand H2L, three Dy-based complexes were synthesized, and structurally and magnetically characterized. Theoretical calculations are performed to analyze the performance of single molecule magnets.
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Affiliation(s)
- Shao-Min Xu
- College of Chemistry & Molecular Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Zhong-Wu An
- College of Chemistry & Molecular Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Wei Zhang
- College of Chemistry & Molecular Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Lab for NSLSCS
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- China
| | - Min-Xia Yao
- College of Chemistry & Molecular Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
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9
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Structure changes from radical-3d ring dimer to radical-3d-4f 1D chain with different magnetic properties. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Krylov D, Velkos G, Chen CH, Büchner B, Kostanyan A, Greber T, Avdoshenko SM, Popov AA. Magnetic hysteresis and strong ferromagnetic coupling of sulfur-bridged Dy ions in clusterfullerene Dy 2S@C 82. Inorg Chem Front 2020; 7:3521-3532. [PMID: 33442482 PMCID: PMC7116581 DOI: 10.1039/d0qi00771d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two isomers of metallofullerene Dy2S@C82 with sulfur-bridged Dy ions exhibit broad magnetic hysteresis with sharp steps at sub-Kelvin temperature. Analysis of the level crossing events for different orientations of a magnetic field showed that even in powder samples, the hysteresis steps caused by quantum tunneling of magnetization can provide precise information on the strength of intramolecular Dy⋯Dy inter-actions. A comparison of different methods to determine the energy difference between ferromagnetic and antiferromagnetic states showed that sub-Kelvin hysteresis gives the most robust and reliable values. The ground state in Dy2S@C82 has ferromagnetic coupling of Dy magnetic moments, whereas the state with antiferromagnetic coupling in C s and C 3v cage isomers is 10.7 and 5.1 cm-1 higher, respectively. The value for the C s isomer is among the highest found in metallofullerenes and is considerably larger than that reported in non-fullerene dinuclear molecular magnets. Magnetization relaxation times measured in zero magnetic field at sub-Kelvin temperatures tend to level off near 900 and 3200 s in C s and C 3v isomers. These times correspond to the quantum tunneling relaxation mechanism, in which the whole magnetic moment of the Dy2S@C82 molecule flips at once as a single entity.
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Affiliation(s)
- Denis Krylov
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.,Center for Quantum Nanoscience, Institute for Basic Science (IBS), Seoul, Republic of Korea
| | - Georgios Velkos
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Chia-Hsiang Chen
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Bernd Büchner
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Aram Kostanyan
- Physik-Institut der Universität Zürich, Winterthurerstr. 190, CH-8057 Zürich, Switzerland
| | - Thomas Greber
- Physik-Institut der Universität Zürich, Winterthurerstr. 190, CH-8057 Zürich, Switzerland
| | - Stanislav M Avdoshenko
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research, Helmholtzstraße 20, 01069 Dresden, Germany
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11
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Ge J, Qiu Y, Wang H, Su J, Wang P, Chen Z. Magnetic Relaxation Dynamics of a Binuclear Diluted Er(III)/Y(III) Compound Influenced by Lattice Solvent. Chem Asian J 2020; 15:3013-3019. [DOI: 10.1002/asia.202000655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/17/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Jing‐Yuan Ge
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 China
| | - Ya‐Ru Qiu
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Hai‐Ying Wang
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jian Su
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Peng Wang
- College of Chemical and Environmental Engineering Shandong University of Science and Technology Qingdao 266590 China
| | - Zhongyan Chen
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 China
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12
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Kong M, Feng X, Li J, Wang J, Zhang YQ, Song Y. Switchable slow relaxation of magnetization in photochromic dysprosium( iii) complexes manipulated by a dithienylethene ligand. NEW J CHEM 2020. [DOI: 10.1039/d0nj04457a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The admirable photochromic and magnetic properties of two dithienylethene-based complexes can be modulated with UV/Vis light irradiation.
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Affiliation(s)
- Ming Kong
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Advanced Microstructure
- Nanjing University
- Nanjing 210023
| | - Xin Feng
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Advanced Microstructure
- Nanjing University
- Nanjing 210023
| | - Jing Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Advanced Microstructure
- Nanjing University
- Nanjing 210023
| | - Jia Wang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Advanced Microstructure
- Nanjing University
- Nanjing 210023
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory For NSLSCS, School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- People's Republic of China
| | - You Song
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Advanced Microstructure
- Nanjing University
- Nanjing 210023
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