1
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Pan HD, Wu CE, Chen JH, Li Y, Zhang XQ, Teng QH, Wang K, Liang FP. A Pair of 2D MOFs Based on [Tm2] Secondary Building Units: Syntheses, Structural Variation and Magnetic Properties. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02347-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Wang HS, Zhou PF, Wang J, Long QQ, Hu Z, Chen Y, Li J, Song Y, Zhang YQ. Significantly Enhancing the Single-Molecule-Magnet Performance of a Dinuclear Dy(III) Complex by Utilizing an Asymmetric Auxiliary Organic Ligand. Inorg Chem 2021; 60:18739-18752. [PMID: 34865470 DOI: 10.1021/acs.inorgchem.1c02169] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, we employed an asymmetric auxiliary organic ligand (1,1,1-trifluoroacetylacetone, Htfac) to further regulate the magnetic relaxation behavior of series of Dy2 single-molecule magnets (SMMs) with a N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2L) ligand. Fortunately, an air-stable Dy2 complex, [Dy2(L)2(tfac)2] (1; Htfac = 1,1,1-trifluoroacetylacetone) was obtained at room temperature. A structural analysis indicated that some Dy-O or Dy-N bond lengths for 1 are not in the range of those for the complexes [DyIII2(L)2(acac)2]·2CH2Cl2 (Dy2-acac; Hacac = acetylacetone) and [DyIII2(L)2(hfac)2] (Dy2-hfac; Hhfac = hexafluoroacetylacetone), although the electron-withdrawing ability of tfac- is stronger than that of acac- but weaker than that of hfac-. Additionally, the Dy-O3/O3a (the two O atoms bridged to DyIII ions) bond lengths are also affected by the asymmetrical Htfc ligand. This indicated that the charge distribution of the coordination atoms around DyIII has been modified in 1, which leads to the fine-tuning of the magnetic relaxation behavior of 1. Magnetic studies indicated that the values of effective energy barrier (Ueff) for 1 and its diluted sample (2) are 234.8(3) and 188.0(6) K, respectively, which are both higher than the reported value of 110 K for the complex Dy2-hfac. More interestingly, 1 exhibits a magnetic hysteresis opening when T < 2.5 K at zero field, while the hysteresis loops of 2 are closed at a zero dc field. This discrepancy is due to the weak intramolecular exchange coupling in 2, which cannot overcome the QTM of the single DyIII ion. Ab initio calculations for 1 revealed that the charge distributions of the coordination atoms around DyIII ions were regulated and the intramolecular exchange coupling was indeed improved when the asymmetrical Htfc was employed as a ligand for the synthesis of this kind of Dy2 SMM.
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Affiliation(s)
- Hui-Sheng Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, People's Republic of China
| | - Peng-Fei Zhou
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, People's Republic of China
| | - Jia Wang
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Qiao-Qiao Long
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, People's Republic of China
| | - Zhaobo Hu
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yong Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan 430074, People's Republic of China
| | - Jing Li
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - You Song
- State Key Laboratory of Coordinate Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, People's Republic of China
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3
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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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4
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Benmansour S, Hernández-Paredes A, Bayona-Andrés M, Gómez-García CJ. Slow Relaxation of the Magnetization in Anilato-Based Dy(III) 2D Lattices. Molecules 2021; 26:molecules26041190. [PMID: 33672166 PMCID: PMC7926458 DOI: 10.3390/molecules26041190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/12/2021] [Accepted: 02/20/2021] [Indexed: 11/29/2022] Open
Abstract
The search for two- and three-dimensional materials with slow relaxation of the magnetization (single-ion magnets, SIM and single-molecule magnets, SMM) has become a very active area in recent years. Here we show how it is possible to prepare two-dimensional SIMs by combining Dy(III) with two different anilato-type ligands (dianions of the 3,6-disubstituted-2,5-dihydroxy-1,4-benzoquinone: C6O4X22−, with X = H and Cl) in dimethyl sulfoxide (dmso). The two compounds prepared, formulated as: [Dy2(C6O4H2)3(dmso)2(H2O)2]·2dmso·18H2O (1) and [Dy2(C6O4Cl2)3(dmso)4]·2dmso·2H2O (2) show distorted hexagonal honeycomb layers with the solvent molecules (dmso and H2O) located in the interlayer space and in the hexagonal channels that run perpendicular to the layers. The magnetic measurements of compounds 1, 2 and [Dy2(C6O4(CN)Cl)3(dmso)6] (3), a recently reported related compound, show that the three compounds present slow relaxation of the magnetization. In compound 1 the SIM behaviour does not need the application of a DC field whereas 2 and 3 are field-induced SIM (FI-SIM) since they show slow relaxation of the magnetization when a DC field is applied. We discuss the differences observed in the crystal structures and magnetic properties based on the X group of the anilato ligands (H, Cl and Cl/CN) in 1–3 and in the recently reported derivative [Dy2(C6O4Br2)3(dmso)4]·2dmso·2H2O (4) with X = Br, that is also a FI-SIM.
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5
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Liu G, Zhao J, Liang S, Li Y, Chang Z, Wang X, Chen B. Ten polytorsional-amide-induced helical-based coordination polymers with difunctional electrochemical activities. CrystEngComm 2021. [DOI: 10.1039/d0ce01754j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Ten polytorsional-naphthalene-amide-based CPs constructed from different carboxylates and metal ions were obtained and exhibited difunctional electrochemical activities.
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Affiliation(s)
- Guocheng Liu
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Jing Zhao
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Shuang Liang
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Yan Li
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Zhihan Chang
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Xiuli Wang
- College of Chemistry and Materials Engineering
- Professional Technology Innovation Center of Liaoning Province for Conversion Materials of Solar Cell
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Baokuan Chen
- College of Chemistry, Chemical Engineering and Environmental Engineering
- Liaoning Shihua University
- Fushun
- P. R. China
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6
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Liu BQ, Liu WH, Wang CR, Zheng JH, Zhang YH, Zhang JW. Syntheses and properties of two types of linear tetranuclear heterometallic clusters with identical formulas but different structures. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Lin CB, Guo KK, Guo WX, Wang YH, Wang K, Li Y, Zhang SH, Zhang XQ, Zhang YQ, Liang FP. Rationally Designing Metal–Organic Frameworks Based on [Ln2] Magnetic Building Blocks Utilizing 2-Hydroxyisophthalate and Fine-Tuning the Magnetic Properties of Dy Analogues by Terminal Coordinated Solvents. Inorg Chem 2020; 59:16924-16935. [DOI: 10.1021/acs.inorgchem.0c01956] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chao-Bin Lin
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Ke-Ke Guo
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Wen-Xiao Guo
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Yi-Han Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 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
| | - Yan Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Shu-Hua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Xiu-Qing Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China
| | - Fu-Pei Liang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
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8
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Hahn P, Ullmann S, Klose J, Peng Y, Powell AK, Kersting B. Dinuclear Tb and Dy complexes supported by hybrid Schiff-base/calixarene ligands: synthesis, structures and magnetic properties. Dalton Trans 2020; 49:10901-10908. [PMID: 32720658 DOI: 10.1039/d0dt02209h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The synthesis of the new lanthanide complexes [HNEt3][Dy2(HL1)(L1)] (5), and [Ln2(L2)2] (Ln = TbIII (7), DyIII (8)) supported by the hybrid Schiff-base/calix[4]arene ligands H4L1 (25-[2-((2-methylphenol)imino)ethoxy]-26,27,28-trihydroxy-calix[4]arene) and H3L2 (25-[2-((2-methylpyridine)imino)ethoxy]-26,27,28-trihydroxy-calix[4]arene) are reported. Spectroscopic data (for 5) and X-ray crystallographic analysis (for 7·4MeCN, 8·4MeCN) reveal the presence of dimeric structures, featuring doubly-bridged NO4Ln(μ-O)2LnO4N (5) or N2O3Ln(μ-O)2LnO3N2 cores (7, 8) with seven-coordinated Ln3+ ions. The magnetic properties of polycrystalline samples of 5, 7 and 8 were studied by variable temperature dc and ac magnetic susceptibility measurements. The χ''(T) vs. T plots show no maxima in zero field, but the maxima can be detected under a 3 kOe dc field. The relaxation times τ obey the Arrhenius law above 5 K. Anisotropy barriers of ∼18 cm-1 (26 K) for 5 and ∼23 cm-1 (33 K) for 8 were determined.
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Affiliation(s)
- Peter Hahn
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany.
| | - Steve Ullmann
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany.
| | - Jennifer Klose
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany.
| | - Yan Peng
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, D-76131 Karlsruhe, Germany.
| | - Annie K Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, D-76131 Karlsruhe, Germany.
| | - Berthold Kersting
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany.
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9
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Liu GC, Lu X, Li XW, Wang XL, Xu N, Li Y, Lin HY, Chen YQ. Metal/Carboxylate-Induced Versatile Structures of Nine 0D → 3D Complexes with Different Fluorescent and Electrochemical Behaviors. ACS OMEGA 2019; 4:17366-17378. [PMID: 31656910 PMCID: PMC6812125 DOI: 10.1021/acsomega.9b02124] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/06/2019] [Indexed: 05/04/2023]
Abstract
To investigate the effect of the polycarboxylates and metal ions on the assembly and structures of complexes based on a thiophene-containing bis-pyridyl-bis-amide N,N'-bis(pyridine-3-yl)thiophene-2,5-dicarboxamide (3-bptpa) ligand, nine 0D → 3D complexes of [Ni2(3-bptpa)4(1,2-BDC)2(H2O)2] (1), [Ni(3-bptpa)(IP)(H2O)2]·H2O (2), [Ni(3-bptpa)(5-MIP)(H2O)2]·H2O (3), [Ni(3-bptpa)(5-NIP)(H2O)] (4), [Ni(3-bptpa)(5-AIP)]·2H2O (5), [Ni2(OH)(3-bptpa)(1,3,5-BTC)]·DMA·5H2O (6), [Cu(3-bptpa)(5-MIP)]·3H2O (7), [Cu(3-bptpa)(5-AIP)(H2O)0.25]·H2O (8), and [Cu(3-bptpa)(1,3,5-HBTC)] (9) (1,2-H2BDC = 1,2-benzenedicarboxylic acid, H2IP = 1,3-benzenedicarboxylic acid, 5-H2MIP = 5-methylisophthalic acid, 5-H2NIP = 5-nitroisophthalic acid, 5-H2AIP = 5-aminoisophthalic acid, DMA = N,N'-dimethylacetamide, and 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid) have been hydrothermally/solvothermally synthesized and structurally characterized by IR, thermogravimetric, powder X-ray diffraction, and single-crystal X-ray diffraction. Complex 1 is a zero-dimensional (0D) bimetallic complex. Complexes 2 and 3 feature two similar one-dimensional ladderlike structures. Complex 4 displays a two-dimensional (2D) 4-connected network based on single-metallic nodes. Complex 5 shows a 2D double-layer structure containing a pair of 63 [Ni(5-AIP)] honeycomblike sheets. Complex 6 is a 3,5-connected three-dimensional (3D) framework derived from bimetallic nodes and 63 [Ni2(OH)(1,3,5-BTC)] honeycomblike sheets. Complex 7 displays a 2D 4-connected grid based on bimetallic nodes. Complex 8 features a 2D double-layer structure based on two 4-connected [Cu(3-bptpa)(5-AIP)] sheets and bridging coordinated water molecules. Complex 9 is a 2D structure extended by incomplete deprotonation of 1,3,5-HBTC and 3-bptpa linkers. The effect of the metal ions and polycarboxylates on the structures of the title complexes was discussed, and the fluorescent properties of 1-9 were investigated. The carbon paste electrodes bulk-modified by complexes 3, 5, and 6-9 show different electrocatalytic activities for the oxidation of ascorbic acid as well as the reduction of hydrogen peroxide, nitrites, and bromates.
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Affiliation(s)
- Guo-Cheng Liu
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, P. R. China
| | - Xue Lu
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
| | - Xiao-Wu Li
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, P. R. China
| | - Xiu-Li Wang
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
| | - Na Xu
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
| | - Yan Li
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
| | - Hong-Yan Lin
- Faculty of Chemistry and Chemical Engineering, Liaoning Province Silicon Materials Engineering Technology Research Centre, Bohai University, Jinzhou 121013, P. R. China
| | - Yong-Qiang Chen
- College of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong, Shanxi 030619, P. R. China
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10
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Biswas S, Kumar P, Swain A, Gupta T, Kalita P, Kundu S, Rajaraman G, Chandrasekhar V. Phosphonate-assisted tetranuclear lanthanide assemblies: observation of the toroidic ground state in the Tb III analogue. Dalton Trans 2019; 48:6421-6434. [PMID: 30993275 DOI: 10.1039/c9dt00592g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The reaction of LnCl3·6H2O with a multidentate flexible Schiff base ligand (LH4), H2O3PtBu and trifluoroacetic acid (tfaH) afforded a series of homometallic tetranuclear complexes, [Ln4(LH2)2(O3PtBu)2(μ2-η1η1tfa)2][2Cl] (Ln = DyIII (1), TbIII (2) and GdIII (3)). The tetranuclear lanthanide core contains two structurally different lanthanide centres, one being in a distorted trigonal dodecahedron geometry and the other in a distorted trigonal prism. Complexes 1-3 were investigated via direct and alternating current (DC and AC) magnetic susceptibility measurements. Only 1 revealed a weak single-molecule magnet (SMM) behaviour. Alternating current (ac) magnetic susceptibility measurements on 1 reveal a frequency-dependent out-of-phase signal. However, the absence of distinct maxima in the χ'' peak (within the temperature/frequency range of our experiments) prevented deduction of the experimental energy barrier for magnetization reversal (Ueff) and the relaxation time. We have carried out extensive ab initio (CASSCF + RASSI-SO + SINGLE_ANISO + POLY_ANISO) calculations on complexes 1-2 to gain deeper insights into the nature of magnetic anisotropy. Our calculations yielded only one exchange coupling parameter between the two LnIII centres bridged by the ligand (neglecting the exchange between the LnIII centres that are not proximal wrt each other). All the extracted J values indicate a weakly antiferromagnetic coupling between the metal centres (J = -0.025 cm-1 for 1 and J = -0.015 cm-1 for 2). Calculated exchange coupled Ucal values of ∼5 and ∼1 cm-1 in 1 and 2 respectively nicely corroborated the experimental observations regarding weak and no SMM characteristics. Our calculations indicated the presence of a net single-molecule toroidal (SMT) behaviour in complex 2. On the other hand, fitting the magnetic data (susceptibility and magnetization) in the isotropic cluster 3 revealed weak AFM exchange couplings of J1 = 0.025 cm-1 and J2 = -0.020 cm-1 which are consistent with those for GdIII ions.
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Affiliation(s)
- Sourav Biswas
- Department of Geo-Chemistry, Keshav Deva Malaviya Institute of Petroleum Exploration, Dehradun-248915, India
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11
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Liu G, Li Y, Lu Z, Li X, Wang X, Wang X, Chen X. Versatile carboxylate-directed structures of ten 1D → 3D Ni(ii) coordination polymers: fluorescence behaviors and electrochemical activities. CrystEngComm 2019. [DOI: 10.1039/c9ce01060b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ten 1D → 3D Ni(ii) coordination polymers based on a phenyl/methylene-mixed-bridged ligand have been obtained and structurally directed by carboxylates; they show different fluorescence behaviors and electrochemical activities.
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Affiliation(s)
- Guocheng Liu
- Department of Chemistry
- Liaoning Province Silicon Materials Engineering Technology Research Centre
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Yan Li
- Department of Chemistry
- Liaoning Province Silicon Materials Engineering Technology Research Centre
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Zhenjie Lu
- Research Group of Functional Materials for New Energy
- School of Chemical Engineering
- University of Science and Technology Liaoning
- 114051 Anshan
- P. R. China
| | - Xiaowu Li
- Department of Materials Physics and Chemistry
- School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials
- Ministry of Education
- Northeastern University
- Shenyang 110819
| | - Xiuli Wang
- Department of Chemistry
- Liaoning Province Silicon Materials Engineering Technology Research Centre
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Xiang Wang
- Department of Chemistry
- Liaoning Province Silicon Materials Engineering Technology Research Centre
- Bohai University
- Jinzhou 121013
- P. R. China
| | - Xingxing Chen
- Research Group of Functional Materials for New Energy
- School of Chemical Engineering
- University of Science and Technology Liaoning
- 114051 Anshan
- P. R. China
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12
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Wang WM, He LY, Wang XX, Shi Y, Wu ZL, Cui JZ. Linear-shaped LnIII4 and LnIII6 clusters constructed by a polydentate Schiff base ligand and a β-diketone co-ligand: structures, fluorescence properties, magnetic refrigeration and single-molecule magnet behavior. Dalton Trans 2019; 48:16744-16755. [DOI: 10.1039/c9dt03478a] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A series of linear-shaped LnIII4 and LnIII6 clusters were synthesized. The structures, fluorescence properties and magnetic properties have been deeply studied.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
- Department of Chemistry
| | - Li-Yuan He
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xin-Xin Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Ying Shi
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Zhi-Lei Wu
- Department of Chemistry
- Tianjin University
- Tianjin
- China
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13
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Wang WM, Zhang L, Li XZ, He LY, Wang XX, Shi Y, Wang J, Dong J, Wu ZL. Structures, fluorescence properties and magnetic properties of a series of rhombus-shaped LnIII4 clusters: magnetocaloric effect and single-molecule-magnet behavior. NEW J CHEM 2019. [DOI: 10.1039/c9nj02872b] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family LnIII4 clusters were successfully synthesized and structurally characterized. Magnetic studies show that Gd4 cluster displays magnetic refrigeration, while Dy4 cluster demonstrates two distinct slow magnetic relaxation processes.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
| | - Li Zhang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xian-Zhen Li
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Li-Yuan He
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xin-Xin Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Ying Shi
- Department of Biology
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Jie Wang
- Department of Biology
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Jie Dong
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- China
- Department of Chemistry
| | - Zhi-Lei Wu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- China
| |
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