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Chen MT, Zhao HX, Long LS, Zheng LS. Single-molecule magnet behavior in heterometallic decanuclear [Ln 2Fe 8] (Ln = Y, Dy, Ho, Tb, Gd) coordination clusters. Dalton Trans 2024. [PMID: 38235965 DOI: 10.1039/d3dt03832g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Five decanuclear lanthanide-iron clusters, formulated as [Ln2Fe8(hmp)10(μ2-OH)4(μ3-OH)2(μ4-O)4(H2O)6]·6ClO4·xH2O (x ≈ 8, Ln = Y for 1; x ≈ 6, Ln = Dy for 2; x ≈ 6, Ln = Ho for 3; x ≈ 7, Ln = Tb for 4; x ≈ 7, Ln = Gd for 5, Hhmp = 2-(hydroxymethyl)pyridine), have been synthesized and structurally characterized. Single-crystal structural analysis reveals that the cluster consists of six face-sharing defective cubane units. Dynamic magnetic investigations indicated that cluster 2 exhibits single-molecule magnet behavior under a zero dc field eliciting an effective energy barrier of Ueff = 17.76 K and a pre-exponential factor of τ0 = 7.93 × 10-8 s. Investigation of the performance of a series of FeIII-DyIII SMMs indicates that the relatively low energy barrier in 2 is associated with the weak ferromagnetic coupling between FeIII and DyIII ions, while the strength of ferromagnetic interaction in these clusters is mainly related to the bond distances between DyIII and O atoms coordinated to FeIII ions. Clusters 3 and 4 exhibit similar dual relaxation pathways under their respective optimal external applied dc field, where the direct relaxation process occurs in the low-frequency area, which impedes the extraction of the Ueff, while the secondary relaxation process appears at a higher frequency, which is probably a connection with intermolecularly driven relaxation. Our findings offer a magneto-structural correlation model for further investigating the single-molecule magnet behavior in lanthanide-iron systems.
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Affiliation(s)
- Man-Ting Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - Hai-Xia Zhao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - La-Sheng Long
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - Lan-Sun Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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Chen MT, Zheng XY, Kong XJ, Long LS, Zheng LS. Functionalization of Keggin Fe 13-Oxo Clusters. Inorg Chem 2023; 62:1781-1785. [PMID: 35608919 DOI: 10.1021/acs.inorgchem.2c01018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two Keggin Fe13-oxo clusters, [Pr12Fe33(NO3)6(L-van)4(D-van)5(TEOA)12(μ3-OH)12(μ4-OH)12(μ4-O)28(H2O)4]·(ClO4)3·(NO3)·10H2O (1) and [Dy12Fe33(NO3)2(L-van)3(D-van)3(TEOA)12(μ3-OH)18(μ4-OH)6(μ4-O)28(H2O)9]·(ClO4)5·(NO3)6·15H2O (2), where L-van = l-valine, D-van = d-valine, and TEOA = triethanolamine, were prepared by using Ln3+ as a stabilizer. Cluster 1 crystallizes in a chiral space group of C2, while cluster 2 crystallizes in a centrosymmetric space group of Pnma. Dynamic magnetic measurements of 2 under a zero direct-current field reveal that 2 exhibits single-molecule-magnet characteristics with an energy barrier of 18.79 K. Significantly, the formation of the chiral cluster 1 is closely related to the larger radius of the Pr3+ ion.
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Affiliation(s)
- Man-Ting Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiu-Ying Zheng
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Xiang-Jian Kong
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - La-Sheng Long
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lan-Sun Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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3
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Lada ZG, Polyzou CD, Nika V, Stamatatos TC, Konidaris KF, Perlepes SP. Adventures in the coordination chemistry of 2-pyridyl oximes: On the way to 3d/4f-metal coordination clusters. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fan XT, Yang H, Li DC, Tian HQ, Cao F, Dou JM. Three new heterometallic ZnII–LnIII complexes with a windmill-like framework and field-induced SMM behavior. NEW J CHEM 2020. [DOI: 10.1039/c9nj05796j] [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
We have prepared three 3d–4f heterometallic complexes by the reaction of o-vanillin oxime (H2L) with Zn(NO3)2·6H2O and Ln(NO3)3·6H2O salts in the presence of triethylamine.
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Affiliation(s)
- Xiao-Tian Fan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Hua Yang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Da-Cheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Hai-Quan Tian
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Fan Cao
- School of Materials Science and Engineering
- Shandong Jianzhu University
- 250101 Jinan
- P. R. China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
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5
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Anastasiadis NC, Lada ZG, Polyzou CD, Raptopoulou CP, Psycharis V, Konidaris KF, Perlepes SP. Synthetic strategies to {CoIII2LnIII} complexes based on 2-pyridyl oximes (Ln = lanthanide). INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Synthesis of five isostructural tetranuclear Fe2Ln2 (Ln = Gd, Tb, Dy, Ho, Er) complexes with an “inverse butterfly” core. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.06.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Polyzou CD, Koumousi ES, Lada ZG, Raptopoulou CP, Psycharis V, Rouzières M, Tsipis AC, Mathonière C, Clérac R, Perlepes SP. "Switching on" the single-molecule magnet properties within a series of dinuclear cobalt(iii)-dysprosium(iii) 2-pyridyloximate complexes. Dalton Trans 2018; 46:14812-14825. [PMID: 29038805 DOI: 10.1039/c7dt02717f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The use of 2-pyridinealdoxime (paoH), methyl 2-pyridyl ketone oxime (mepaoH), phenyl 2-pyridyl ketone oxime (phpaoH) and pyridine-2-amidoxime (NH2paoH) for the synthesis of dinuclear CoIII/DyIII complexes is described in the absence or presence of an external base. Complexes [CoDy(pao)3(NO3)3] (1), [CoDy(mepao)3(NO3)3] (2), [CoDy(phpao)3(NO3)3] (3) and [CoDy(NH2pao)3(NO3)3]·3MeOH (4·3MeOH) have been isolated and their structures have been determined by single-crystal X-ray crystallography. The complexes crystallize in non-centrosymmetric (2, 3) or centrosymmetric (1, 4·3MeOH) trigonal space groups and form a family of triply-oximate bridged dinuclear Co(iii)-Dy(iii) complexes. The crystals of 1, 3 and 4·3MeOH contain mixtures of Δ and Λ enantiomers, whereas complex 2 is enantiomerically pure (Λ). A 3-fold crystallographic axis (C3) passes through two metal ions in all complexes. The low-spin CoIII and DyIII ions are bridged by three oximate groups belonging to the η1:η1:η1:μ 2-pyridyloximate ligands. The CoIII centre is octahedrally coordinated by the six nitrogen atoms of the deprotonated organic ligands in a facial arrangement. The DyIII centre is bound to an O9 set of donor atoms, its coordination sphere being completed by three bidentate chelating nitrato groups. The coordination polyhedron around DyIII in 1 is best described as the Johnson tricapped trigonal prism, while the coordination geometries of the DyIII centres in 2, 3 and 4·3MeOH are best described as consisting of spherical tricapped trigonal prismatic coordination polyhedra. The spectroscopic data of the complexes are also reported and discussed in the infra-red region in terms of the coordination modes of the ligands involved. The magnetic properties of these complexes were studied between 300 and 1.8 K revealing mainly the depopulation of the DyIIImj sublevels of the ground 6H15/2 state. The intrinsic magnetic anisotropy of the DyIII centers is clearly observed by the non-superimposed magnetization (M) versus H/T data, but single-molecule magnet (SMM) properties were detected only for the mepao--containing complex 2. The origin of these properties in 2 is critically discussed and supported by computational studies.
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Affiliation(s)
- C D Polyzou
- Department of Chemistry, University of Patras, 265 04 Patras, Greece.
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Griffiths K, Harding C, Dokorou VN, Loukopoulos E, Sampani SI, Abdul‐Sada A, Tizzard GJ, Coles SJ, Lorusso G, Evangelisti M, Escuer A, Kostakis GE. Heptanuclear Disk‐Like M
II
3
Ln
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(M = Ni, Co) Coordination Clusters: Synthesis, Structures and Magnetic Properties. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700728] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kieran Griffiths
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Chris Harding
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Vasiliki N. Dokorou
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Edward Loukopoulos
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Stavroula I. Sampani
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Alaa Abdul‐Sada
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
| | - Graham J. Tizzard
- UK National Crystallography Service Chemistry University of Southampton SO1 71BJ Southampton UK
| | - Simon J. Coles
- UK National Crystallography Service Chemistry University of Southampton SO1 71BJ Southampton UK
| | - Giulia Lorusso
- Instituto de Ciencia de Materiales de Aragón(ICMA) CSIC ‐ Universidad de Zaragoza 50009 Zaragoza Spain
| | - Marco Evangelisti
- Instituto de Ciencia de Materiales de Aragón(ICMA) CSIC ‐ Universidad de Zaragoza 50009 Zaragoza Spain
| | - Albert Escuer
- Department de Quimica Inorganica, i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN²UB) Universitat de Barcelona Martí Franqués 1‐11 08028 Barcelona Spain
| | - George E. Kostakis
- Department of Chemistry School of Life Sciences University of Sussex BN1 9QJ Brighton UK
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Chen H, Ma CB, Sun L, Chen CN. A family of Fe III 4 Ln III 4 clusters containing derivatised salicylaldoximate ligand: Syntheses, structures and magnetic properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Zheng XY, Kong XJ, Long LS. Synthesis and Structures of Lanthanide–Transition Metal Clusters. RECENT DEVELOPMENT IN CLUSTERS OF RARE EARTHS AND ACTINIDES: CHEMISTRY AND MATERIALS 2016. [DOI: 10.1007/430_2016_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Cao W, Zhang Y, Wang H, Wang K, Jiang J. Influence of porphyrin meso-attached substituent on the SMM behavior of dysprosium(iii) double-deckers with mixed tetrapyrrole ligands. RSC Adv 2015. [DOI: 10.1039/c4ra15762a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Studies for mixed (phthalocyaninato)(porphyrinato) dysprosium(iii) double-decker SMMs reveal the influence of substituent of the porphyrin ligand on the magnetic properties.
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Affiliation(s)
- Wei Cao
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials
- Department of Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Yuehong Zhang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials
- Department of Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Hailong Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials
- Department of Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Kang Wang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials
- Department of Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Jianzhuang Jiang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials
- Department of Chemistry
- University of Science and Technology Beijing
- Beijing 100083
- China
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