1
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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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2
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Savva M, Alexandropoulos DI, Pissas M, Perlepes SP, Papatriantafyllopoulou C, Sanakis Y, Tasiopoulos AJ. Heterometallic clusters based on an uncommon asymmetric "V-shaped" [Fe 3+(μ-OR)Ln 3+(μ-OR) 2Fe 3+] 6+ (Ln = Gd, Tb, Dy, Ho) structural core and the investigation of the slow relaxation of the magnetization behaviour of the [Fe 2Dy] analogue. Dalton Trans 2023; 52:6997-7008. [PMID: 36789752 DOI: 10.1039/d2dt03938a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
The synthesis, crystal structures, Mössbauer spectra and variable temperature dc and ac magnetic susceptibility studies of a new family of trinuclear heterometallic Fe3+/Ln3+ complexes, [Fe2Ln(PhCO2)3((py)2CO2)((py)2C(OMe)O)2(NO3)Cl] (Ln = Gd (1/Gd), Tb (1/Tb), Dy (1/Dy), and Ho (1/Ho)), where (py)2CO22- and (py)2C(OMe)O- are the anions of the gem-diol and hemiketal derivatives of di-2-pyridyl ketone, are reported. Compounds 1/Ln are based on an asymmetric "V-shaped" [Fe3+(μ-OR)Ln(μ-OR)2Fe3+]6+ structural core formed from the connection of the two terminal Fe3+ centers to the central Ln3+ ion either through one or two alkoxide groups originating from the alkoxide-type bridging ligands. Direct current magnetic susceptibility studies reveal the presence of weak antiferromagnetic interactions between the Fe3+ ions. Alternating current magnetic studies indicate the presence of a slow-magnetic relaxation process in 1/Dy with an energy barrier Ueff = 6.7 (±0.3) K and a pre-exponential factor, τ0 = 2.2 (±0.4) × 10-7 s. The electronic, magnetic and relaxation properties of the complexes were further monitored by variable temperature 57Fe Mössbauer spectroscopy. At T > 80 K the spectra from the complexes comprise two quadrupole doublets the hyperfine parameters of which reflect the distinct coordination environment of the two Fe3+ terminal sites. At T < 20 K, the Mössbauer spectra for 1/Dy are affected by magnetic relaxation effects. At 1.5 K, the spectrum of 1/Dy comprises well defined magnetic sextets indicating relaxation times slower than the characteristic time of the Mössbauer technique (10-7 s) in agreement with the dynamic magnetic measurements. 1/Gd exhibits broad unresolved magnetic sextets at 1.5 K indicating that the spin relaxation time is of the order of the Mössbauer characteristic time at this temperature. For 1/Tb, 1/Ho the Mössbauer spectra exhibit slight broadening even at the lowest available temperature consistent with magnetic relaxation times less than 10-7 s.
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Affiliation(s)
- Maria Savva
- Department of Chemistry, University of Cyprus, 1678 Nicosia, Cyprus.
| | | | - Michael Pissas
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15341 Aghia Paraskevi, Athens, Greece.
| | | | | | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15341 Aghia Paraskevi, Athens, Greece.
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3
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Can Xu, Chen S, Jia L. Synthesis, Crystal Structures, and Magnetic Properties of Two FeIII–DyIII Coordination Clusters with N,N,N',N'-Tetrakis(2-hydroxyethyl)ethylenediamine (edteH4) as Ligand. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622601519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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4
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Zhang HL, Zhai YQ, Nojiri H, Schröder C, Hsu HK, Chan YT, Fu Z, Zheng YZ. {Sc nGd n} Heterometallic Rings: Tunable Ring Topology for Spin-Wave Excitations. J Am Chem Soc 2022; 144:15193-15202. [PMID: 35926139 DOI: 10.1021/jacs.2c05421] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Data carriers using spin waves in spintronic and magnonic logic devices offer operation at low power consumption and free of Joule heating yet requiring noncollinear spin structures of small sizes. Heterometallic rings can provide such an opportunity due to the controlled spin-wave transmission within such a confined space. Here, we present a series of {ScnGdn} (n = 4, 6, 8) heterometallic rings, which are the first Sc-Ln clusters to date, with tunable magnetic interactions for spin-wave excitations. By means of time- and temperature-dependent spin dynamics simulations, we are able to predict distinct spin-wave excitations at finite temperatures for Sc4Gd4, Sc6Gd6, and Sc8Gd8. Such a new model is previously unexploited, especially due to the interplay of antiferromagnetic exchange, dipole-dipole interaction, and ring topology at low temperatures, rendering the importance of the latter to spin-wave excitations.
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Affiliation(s)
- Hao-Lan Zhang
- Frontier Institute of Science and Technology (FIST), State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry and School of Physics, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Yuan-Qi Zhai
- Frontier Institute of Science and Technology (FIST), State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry and School of Physics, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Hiroyuki Nojiri
- Institute for Materials Research (IMR), Tohoku University, Katahira, Sendai 980-8577, Japan
| | - Christian Schröder
- Bielefeld Institute for Applied Materials Research, Bielefeld University of Applied Sciences, Bielefeld D-33619, Germany.,Faculty of Physics, Bielefeld University, Bielefeld D-33615, Germany
| | - Hung-Kai Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Zhendong Fu
- Neutron Platform, Songshan Lake Materials Laboratory, Dongguan 523808, China
| | - Yan-Zhen Zheng
- Frontier Institute of Science and Technology (FIST), State Key Laboratory of Mechanical Behavior for Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy and Materials Chemistry, School of Chemistry and School of Physics, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
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5
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Hu JJ, Peng Y, Liu SJ, Wen HR. Recent advances in lanthanide coordination polymers and clusters with magnetocaloric effect or single-molecule magnet behavior. Dalton Trans 2021; 50:15473-15487. [PMID: 34668916 DOI: 10.1039/d1dt02797b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular magnetorefrigerant materials for low-temperature magnetic refrigeration and single-molecule magnets for high-density information storage and quantum computing have received extensive attention from chemists and magnetic experts. Lanthanide ions with unique magnetic properties have always been considered as ideal candidates for the construction of such materials. This frontier article focuses on GdIII-based molecular magnetorefrigerants and lanthanide-based single-molecule magnets and highlights the most significant advances.
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Affiliation(s)
- Jun-Jie Hu
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China.
| | - Yan Peng
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China.
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China.
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P.R. China.
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6
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Biswas M, Sañudo EC, Ray D. Carboxylate-Decorated Aggregation of Octanuclear Co 4Ln 4 (Ln = Dy, Ho, Yb) Complexes from Ligand-Controlled Hydrolysis: Synthesis, Structures, and Magnetic Properties. Inorg Chem 2021; 60:11129-11139. [PMID: 34242013 DOI: 10.1021/acs.inorgchem.1c01070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-pot reactions of an asymmetric carboxy-ether-phenol based Schiff base H2L (2-((2-hydroxy-3-methoxybenzylidene)amino)benzoic acid) with selected Ln(NO3)3·nH2O and [Co2(μ-OH2)(O2CCMe3)4(HO2CCMe3)4] (Co2-Piv) in basic MeOH medium resulted in a family of three octanuclear complexes, [CoII4LnIII4L4(μ1,3-Piv)4(μ1,1,3-Piv)2(η1-Piv)2(μ3-OH)4(MeOH)2]·mMeOH·nH2O (Ln = Dy; m = 3, n = 1 (1), Ho; m = 4, n = 0 (2), Yb; m = 3, n = 1 (3)). The coordination aggregates thus obtained were nicely sustained by four ligand anions and eight externally added carboxylate anions showing three different modes of intermetallic connectivity. The options for incorporating different 4f ions in an investigative synthesis, without altering the resulting intermetallic core structure, were successful for the three representative examples. Single-crystal X-ray diffraction studies revealed that the compounds are isostructural and built from two initially formed partial dicubane-type Co2Ln2L2 units. In each of the tetranuclear parts, the metal ion centers are held together by two L2-, two μ3-HO-, three Piv- bridges, one terminal Piv-, and one terminal MeOH. Four carboxylate ends of four L2- units are responsible for connecting two Co2Ln2 units into octanuclear structures. The unique distortion around the CoII centers is achieved from the facile coordination of bigger 4f ions to the adjacent hard OO sites. The distortion is further maintained by the presence of terminal COO- groups from L2-. The dc magnetic susceptibility data revealed ferromagnetic coupling between the CoII and LnIII centers within the series, whereas the ac magnetic susceptibility measurements identified only 1, having a highly anisotropic DyIII ion, as a single-molecule magnet in the absence of any external magnetic field, with an energy barrier Ueff of 12.5 K.
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Affiliation(s)
- Mousumi Biswas
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - E Carolina Sañudo
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.,Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, (IN2UB) 08028 Barcelona, Spain
| | - Debashis Ray
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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7
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Akhtar MN, AlDamen MA, McMillen CD, Escuer A, Mayans J. Exploring the Role of Intramolecular Interactions in the Suppression of Quantum Tunneling of the Magnetization in a 3d-4f Single-Molecule Magnet. Inorg Chem 2021; 60:9302-9308. [PMID: 34125527 DOI: 10.1021/acs.inorgchem.0c03682] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Hydroxide-bridged FeIII4LnIII2 clusters having the general formula [Fe4Ln2(μ3-OH)2(mdea)6(SCN)2(NO3)2(H2O)2]·4H2O·2MeCN {Ln = Y (1), Dy (2), mdea = N-methyldiethanolamine} were synthesized and magnetically characterized. The thermal relaxation of the magnetization for 2 and the diluted FeIII4DyIIIYIII complex 3 (with and without applied field) has been analyzed. The diluted sample shows a dominant QTM at low temperatures that can be removed with a 0.15 T dc field. Both 2 and 3 show moderately high Ueff barriers and exhibit hysteresis loops until 5 K.
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Affiliation(s)
- Muhammad Nadeem Akhtar
- Division of Inorganic Chemistry, Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Murad A AlDamen
- Department of Chemistry, School of Science, The University of Jordan, Amman 11942, Jordan
| | - Colin D McMillen
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Albert Escuer
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institute of Nanoscience and Nanotecnology (IN2UB), Universitat de Barcelona, Marti i Franques 1-11, Barcelona 08028, Spain
| | - Júlia Mayans
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltran 2, 46980 Paterna, Valencia, Spain
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8
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Kühne IA, Anson CE, Powell AK. The Influence of Halide Substituents on the Structural and Magnetic Properties of Fe6Dy3 Rings. Front Chem 2020; 8:701. [PMID: 32923426 PMCID: PMC7456939 DOI: 10.3389/fchem.2020.00701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/07/2020] [Indexed: 11/13/2022] Open
Abstract
We report the synthesis and magnetic properties of three new nine-membered Fe(III)-Dy(III) cyclic coordination clusters (CCCs), with a core motif of [Fe6Dy3(μ-OMe)9(vanox)6(X-benz)6] where the benzoate ligands are substituted in the para-position with X = F (1), Cl (2), Br (3). Single crystal X-ray diffraction structure analyses show that for the smaller fluorine or chlorine substituents the resulting structures exhibit an isostructural Fe6Dy3 core, whilst the 4-bromobenzoate ligand leads to structural distortions which affect the dynamic magnetic behavior. The magnetic susceptibility and magnetization of 1-3 were investigated and show similar behavior in the dc (direct current) magnetic data. Additional ac (alternating current) magnetic measurements show that all compounds exhibit frequency-dependent and temperature-dependent signals in the in-phase and out-of-phase component of the susceptibility and can therefore be described as field-induced SMMs. The fluoro-substituted benzoate cluster 1 shows a magnetic behavior closely similar to that of the corresponding unsubstituted Fe6Dy3 cluster, with Ueff = 21.3 K within the Orbach process. By increasing the size of the substituent toward 4-chlorobenzoate within 2, an increase of the energy barrier to Ueff = 36.1 K was observed. While the energy barrier becomes higher from 1 to 2, highlighting that the introduction of different substituents on the benzoate ligand in the para-position has an impact on the magnetic properties, cluster 3 shows a significantly different SMM behavior where Ueff is reduced in the Orbach regime to only 4.9 K.
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Affiliation(s)
- Irina A. Kühne
- Institut für Anorganische Chemie, KIT (Karlsruhe Institute of Technology), Karlsruhe, Germany
- School of Physics, University College Dublin (UCD), Dublin, Ireland
| | - Christopher E. Anson
- Institut für Anorganische Chemie, KIT (Karlsruhe Institute of Technology), Karlsruhe, Germany
| | - Annie K. Powell
- Institut für Anorganische Chemie, KIT (Karlsruhe Institute of Technology), Karlsruhe, Germany
- Institut für Nanotechnologie, KIT (Karlsruhe Institute of Technology), Eggenstein-Leopoldshafen, Germany
- *Correspondence: Annie K. Powell
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9
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Wang HS, Long QQ, Hu ZB, Yue L, Yang FJ, Yin CL, Pan ZQ, Zhang YQ, Song Y. Synthesis, crystal structures and magnetic properties of a series of chair-like heterometallic [Fe 4Ln 2] (Ln = Gd III, Dy III, Ho III, and Er III) complexes with mixed organic ligands. Dalton Trans 2019; 48:13472-13482. [PMID: 31454007 DOI: 10.1039/c9dt02638j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Four chair-like hexanuclear Fe-Ln complexes containing mixed organic ligands, namely, [Fe4Ln2{(py)2CO2}4(pdm)2(NO3)2(H2O)2Cl4]·xCH3CN·yH2O (Ln = GdIII (1, x = 1, y = 0), DyIII (2, x = 1, y = 1), HoIII (3, x = 0, y = 2), and ErIII (4, x = 1, y = 3); (py)2CO2H2 = the gem-diol form of di-2-pyridyl ketone and pdmH2 = 2,6-pyridinedimethanol) have been obtained by employing di-2-pyridyl ketone and 2,6-pyridinedimethanol reacting with FeCl3 and Ln(NO3)3 in MeCN. The structures of 1-4 are similar to each other except for the number of lattice solvent molecules. Four FeIII and two LnIII in these complexes comprise a chair-like core with the "body" constructed by four FeIII ions and the "end" constructed by two LnIII ions. Among the four compounds, 2 shows field-induced single molecule magnet behavior as revealed by ac magnetic susceptibility studies, with the effective energy barrier and the pre-exponential factor of 22.07 K and 8.44 × 10-7 s, respectively. Ab initio calculations indicated that, among 2_Dy, 3_Ho and 4_Er fragments, the energy gap between the lowest two spin-orbit states for 2_Dy is the largest, while the tunneling gap for 2 is the smallest. These might be the reasons for complex 2 exhibiting SMM behavior. Additionally, the orientations of the magnetic anisotropy of DyIII in 2 were obtained by electrostatic calculations and ab initio calculations, both indicating that the directions of the main magnetic axis of Dy1 ions are almost aligned along Dy1-O5 (O5 from the pdm2- ligand).
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Affiliation(s)
- Hui-Sheng Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Qiao-Qiao Long
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Zhao-Bo Hu
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
| | - Lin Yue
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Feng-Jun Yang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Cheng-Ling Yin
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Zhi-Quan Pan
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, P. R. China.
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China.
| | - You Song
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
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10
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Wang HS, Chen Y, Hu ZB, Yin CL, Zhang Z, Pan ZQ. Modulation of the directions of the anisotropic axes of DyIII ions through utilizing two kinds of organic ligands or replacing DyIII ions by FeIII ions. CrystEngComm 2019. [DOI: 10.1039/c9ce00894b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two complexes based on Dy4 or Fe2Dy2 tetrahedral unit have been obtained by employing mixed organic ligands. The directions of the easy magnetization for the DyIII in both complexes were successfully modulated.
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Affiliation(s)
- Hui-Sheng Wang
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan 430074
- P. R. China
| | - Yong Chen
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan 430074
- P. R. China
| | - Zhao-Bo Hu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210046
| | - Cheng-Ling Yin
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan 430074
- P. R. China
| | - Zaichao Zhang
- Jiangsu Key Laboratory for the Chemistry of Low-dimensional Materials
- School of Chemistry and Chemical Engineering
- Huaiyin Normal University
- Huaiyin 223300
- P. R. China
| | - Zhi-Quan Pan
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Wuhan Institute of Technology
- Wuhan 430074
- P. R. China
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11
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Akhtar MN, Liao XF, Chen YC, AlDamen MA, Huang GZ, Liu JL, Khan J, Tong ML. Supertetrahedral T2 clusters in 3d-4f {Fe4Ln6}: Synthesis, crystal structure, magnetic and photoluminescent properties. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Akhtar MN, Lan Y, AlDamen MA, Zheng YZ, Anson CE, Powell AK. Effect of ligand substitution on the SMM properties of three isostructural families of double-cubane Mn4Ln2 coordination clusters. Dalton Trans 2018; 47:3485-3495. [DOI: 10.1039/c7dt04304j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Three isostructural Mn–Ln families consists of 22 complexes have been presented. Only 7, 15, and 22 for Tb, 8 and 16 for Dy, and 20 for Sm displayed slow magnetization relaxation.
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Affiliation(s)
- Muhammad Nadeem Akhtar
- Institut für Anorganische Chemie
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
| | - Yanhua Lan
- Institut für Anorganische Chemie
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Murad A. AlDamen
- Department of Chemistry
- Faculty of Science & Arts
- Al Ula Branch
- Taibah University
- Saudi Arabia
| | - Yan-Zhen Zheng
- Institut für Anorganische Chemie
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Frontier Institute of Science and Technology
| | - Christopher E. Anson
- Institut für Anorganische Chemie
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Annie K. Powell
- Institut für Anorganische Chemie
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institut für Nanotechnologie
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13
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Chen S, Mereacre V, Zhao Z, Zhang W, He Z. Synthesis, structures and magnetic properties of linear {CoII2LnIII2} coordination clusters. NEW J CHEM 2018. [DOI: 10.1039/c7nj04022a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A series of linear CoII2LnIII2 coordination clusters have been synthesized and their magnetic properties have been systematically studied.
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Affiliation(s)
- Sihuai Chen
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Valeriu Mereacre
- KIT Steel and Lightweight Structures
- Research Center for Steel
- Timber and Masonry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
| | - Zhiying Zhao
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Wanwan Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Zhangzhen He
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
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14
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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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15
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Chen S, Mereacre V, Kostakis GE, Anson CE, Powell AK. Systematic studies of hexanuclear {MIII4LnIII2} complexes (M = Fe, Ga; Ln = Er, Ho): structures, magnetic properties and SMM behavior. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00091j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first heterometallic GaIII–ErIII single-molecule magnet has been synthesized and the role of GaIII in extracting the FeIII–ErIII and ErIII–ErIII interaction has been assessed.
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Affiliation(s)
- Sihuai Chen
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- State Key Laboratory of Structural Chemistry
| | - Valeriu Mereacre
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - George E. Kostakis
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton BN1 9QJ
- UK
| | - Christopher E. Anson
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institute of Nanotechnology
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16
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Mameri S, Mereacre V. Self-assembly of 3d-4f “square-in-square” coordination clusters based on substituted diethanolamine ligands. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.07.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Griffiths K, Novitchi G, Kostakis GE. Synthesis, Characterization, Magnetic Properties, and Topological Aspects of Isoskeletal Heterometallic Hexanuclear CoII4LnIII2 Coordination Clusters Possessing 2,3,4M6-1 Topology. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kieran Griffiths
- Department of Chemistry; School of Life Sciences; University of Sussex; BN1 9QJ Brighton UK
| | - Ghenadie Novitchi
- Laboratoire National des Champs Magnétiques Intenses; CNRS; Cedex 9 38042 Grenoble France
| | - George E. Kostakis
- Department of Chemistry; School of Life Sciences; University of Sussex; BN1 9QJ Brighton UK
- Science and Educational Center of Physics of Noneqiliubrium Open Systems; Samara State Aerospace University named after academician S.P.Korolyev (National Research University); Moskovskoye Shosse 34 443086 Samara Russia
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18
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Chen S, Mereacre V, Anson CE, Powell AK. First heterometallic GaIII–DyIII single-molecule magnets: implication of GaIII in extracting Fe–Dy interaction. Dalton Trans 2016; 45:9336-44. [DOI: 10.1039/c6dt01364c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First heterometallic GaIII–DyIII single-molecule magnets have been synthesized and the role of the GaIII in extracting FeIII–DyIII interaction has been assessed.
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Affiliation(s)
- Sihuai Chen
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- State Key Laboratory of Structural Chemistry
| | - Valeriu Mereacre
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Christopher E. Anson
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institute of Nanotechnology
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19
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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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20
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Chen S, Mereacre V, Anson CE, Powell AK. A single molecule magnet to single molecule magnet transformation via a solvothermal process: Fe4Dy2 → Fe6Dy3. Dalton Trans 2016; 45:98-106. [DOI: 10.1039/c5dt03909f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Under ambient and solvothermal conditions four new compounds [FeIII4LnIII2(μ3-OH)2(mdea)4(m-NO2C6H4COO)8]·3MeCN and [FeIII6LnIII3(μ4-O)3(μ3-O)(mdea)5(m-NO2C6H4COO)9]·3MeCN (Ln = Y and Dy) have been synthesised and their magnetic properties investigated.
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Affiliation(s)
- Sihuai Chen
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Valeriu Mereacre
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Christopher E. Anson
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institute of Nanotechnology
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21
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Wang XL, Le M, Lin HY, Luan J, Liu GC, Shao JY. Syntheses, structures and properties of five Cu(II) coordination polymers derived from semi-rigid bis-pyridyl-bis-amide and nitro-substituted aromatic carboxylates. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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