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Liu L, Yang P, Qiu Z, Wang K, Liu D, Liang Y, Hu H, Zou H, Liang F, Chen Z. Russian Doll-like 3d-4f Cluster Wheels with Slow Relaxation of Magnetization. Molecules 2023; 28:5906. [PMID: 37570876 PMCID: PMC10421525 DOI: 10.3390/molecules28155906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
The solvothermal reactions of LnCl3·6H2O and MCl2·6H2O (M = Co, Ni) with 2,2'-diphenol (H2L1) and 5,7-dichloro-8-hydroxyquinoline (HL2) gave three 3d-4f heterometallic wheel-like nano-clusters [Ln7M6(L1)6(L2)6(µ3-OH)6(OCH3)6Cl(CH3CN)6]Cl2·xH2O (Ln = Dy, M = Co, x = 3 for 1; Ln = Dy, M = Ni, x = 0 for 2; Ln = Tb, M = Ni, x = 0 for 3) with similar cluster structure. The innermost Ln(III) ion is encapsulated in a planar Ln6 ring which is further embedded in a chair-conformation M6 ring, constructing a Russian doll-like 3d-4f cluster wheel Ln(III)⸦Ln6⸦M6. 2 and 3 show obvious slow magnetic relaxation behavior with negligible opening of the magnetic hysteresis loop. Such a Russian doll-like 3d-4f cluster wheel with the lanthanide disc isolated by transition metallo-ring is rarely reported.
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Affiliation(s)
- Lan Liu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Panpan Yang
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhihui Qiu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Kai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Dongcheng Liu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yuning Liang
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Huancheng Hu
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Huahong Zou
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Fupei Liang
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Zilu Chen
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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Modak R, Sikdar Y, Gómez-García CJ, Benmansour S, Chatterjee S, Goswami S. Slow Magnetic Relaxation in a Co 2 Dy Trimer and a Co 2 Dy 2 Tetramer. Chem Asian J 2021; 16:666-677. [PMID: 33452757 DOI: 10.1002/asia.202001468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/13/2021] [Indexed: 11/09/2022]
Abstract
The combination of Co(III) and Dy(III) with a compartmental Schiff base ligand (H3 L=3-[(2-Hydroxy-3-methoxy-benzylidene)-amino]-propane-1,2-diol), presenting three different coordinating pockets, has allowed the synthesis of two novel Co(III)-Dy(III) complexes: [Co2 Dy(HL)4 ]NO3 ⋅ 2CH3 CN (1), a rare example of trinuclear linear CoIII 2 DyIII complex (and the first with slow relaxation of magnetization in absence of a DC field) and [Co2 Dy2 (μ3 -OH)2 (HL)2 (OAc)6 ] ⋅ 4.6H2 O (2), the first tetranuclear CoIII 2 DyIII 2 cluster with a rhomb-like structure where the Co(III) ions are connected along the short diagonal of the rhomb. 1 presents two different relaxation processes: a fast relaxation dominated by Quantum tunnelling (QT) and a slow relaxation with an energy barrier of 40 K. 2 shows two close relaxation processes without applied DC fields that follow QT and Orbach mechanisms whereas for HDC =500 Oe, the QT is cancelled and a direct term appears. Here we present the synthesis, X-ray structure and magnetic characterization of these two Co(III)-Dy(III) single-ion/molecule magnets.
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Affiliation(s)
- Ritwik Modak
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
| | - Yeasin Sikdar
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
| | - Carlos J Gómez-García
- Instituto de Ciencia Molecular (ICMol), Dpt. Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Samia Benmansour
- Instituto de Ciencia Molecular (ICMol), Dpt. Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Sudipta Chatterjee
- Department of Chemistry, Serampore College, Hoogly, Serampore, Pin 712 201, India
| | - Sanchita Goswami
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India
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Synthesis, Structure and Magnetic Properties of a Series of Defective Dicubic Ln2Ni2 Clusters. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1476-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yang QZ, Zheng MJ, Zou HH, Wang HL, Liu DC, Liu YC, Liang FP. Structure and Magnetic Properties of a 3d–4f-Doped Hexagonal Heterometallic Cluster. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1455-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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A Family of
$$\left\{ {{\text{Ni}}^{\text{II}}_{2} {\text{Ln}}^{\text{III}}_{2} } \right\}$$
Ni
2
II
Ln
2
III
Butterfly Complexes: Lanthanide Contraction Effect on the Structures Magnetic Properties. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1447-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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