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Pandey P, Chauhan D, Walawalkar MG, Gupta SK, Meyer F, Rajaraman G, Murugavel R. Hourglass-Shaped Homo- and Heteronuclear Nonanuclear Lanthanide Clusters: Structures, Magnetism, Photoluminescence, and Theoretical Analysis. Inorg Chem 2024. [PMID: 38869936 DOI: 10.1021/acs.inorgchem.4c00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Synthesis of nonameric cationic clusters [Dy9(acac)16(μ3-OH)8(μ4-OH)2]OH·6H2O (1), [Dy8Tb (acac)16(μ3-OH)8(μ4-OH)2]OH·2H2O (2), and [Gd9(acac)16(μ3-OH)8(μ4-OH)2]OH·6H2O (3) (acac = acetylacetonate) is reported. The emission spectrum of 1 shows Dy(III) ion characteristic bands assignable to the 4F9/2 → 6HJ (J = 15/2 to 9/2) transitions. Emission due to both Dy(III) and Tb(III) ions is observed for 2 in the visible range, with Tb(III) specific bands appearing due to the 5D4 → 7FJ (J = 6, 4, and 3) transitions. Cluster 3 exhibits a significant magnetocaloric effect (MCE), with -ΔSm values increasing with decrease in temperature and increase in field, reaching -ΔSmmax = 20.98 J kg-1 K-1 at 2 K and 9 T. Isotropic magnetic coupling constants (Js) in 3 derived from density functional theory (DFT) calculations reveal that the exchange interactions are antiferromagnetic and weak. Compound 3 possesses S = 7/2 ground state arising from the central Gd(III) ion along with several nested excited states due to competing antiferromagnetic interactions that yield reasonably large MCE values. Utilizing computed exchange coupling interactions, we have performed ab initio CASSCF/RASSI-SO/POL_ANISO calculations on antiferromagnetic 1 and 2 to estimate the exchange interactions using the Lines model. For 2, Dy(III)···Tb(III) exchange interactions were extracted for the first time and were found to be weakly antiferromagnetically coupled.
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Affiliation(s)
- Priya Pandey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Deepanshu Chauhan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mrinalini G Walawalkar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sandeep K Gupta
- Institute of Inorganic Chemistry, University of Göttingen, Göttingen D-37077, Germany
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Göttingen D-37077, Germany
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ramaswamy Murugavel
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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2
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Wang WM, Cheng RR, Wu ZL, Cui JZ. Bifunctional Lanthanide-Based Coordination Polymers: Conversion of CO 2 and Highly Selective Luminescence Sensing for Acetylacetone. Inorg Chem 2023; 62:14902-14911. [PMID: 37651103 DOI: 10.1021/acs.inorgchem.3c01626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
A series of bifunctional Ln(III)-based coordination polymers (CPs) {Ln(L)(DMA)2(NO3)}n [Ln(III) = Eu (1), Gd (2), and Dy (3); organic ligand H2L = 2,2'-(1,3,5,7-tetrahydroxyoctahydro-4,8-ethanopyrrolo[3,4-f]isoindole-2,6(1H,3H)-diyl)diacetic acid)] have been successfully synthesized. CPs 1-3 are isostructural and constructed from the dimeric Ln2 unit in which two adjacent LnIII ions are bridged by two μ3-carboxyl oxygens, and the Ln2 dimeric unit is connected by two NO3- ions, four DMA molecules, and four completely protonated L2- ligands forming a 2D layer structure. The magnetic research reveals that CP 2 shows a significant cryogenic magnetocaloric effect (-ΔSm = 22.9 J kg-1 K-1; T = 2.0 K and ΔH = 7.0 T), whereas CP 3 exhibits slow magnetic relaxation property under Hdc = 0 Oe field. Additionally, the luminescence explorations revealed that CP 1 can act as a recyclable luminescent probe for pollutant acetylacetone among various small organic solvent molecules, and the corresponding detection limit is 10-7 mol/L. More importantly, CP 1 also exhibits good catalytic performance in the cycloaddition reaction of CO2 and epoxides or cyanamides under mild conditions. As far as we know, CP 1 represents the first bifunctional lanthanide homogeneous catalyst that can efficiently catalyze the reaction of cyanamides/epoxides with CO2 simultaneously.
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Affiliation(s)
- Wen-Min Wang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, China
- Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Rui-Rui Cheng
- Department of Chemistry, Tianjin University, Tianjin 300072, China
| | - Zhi-Lei Wu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China
| | - Jian-Zhong Cui
- Department of Chemistry, Tianjin University, Tianjin 300072, China
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3
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Wang M, Sun C, Gao Y, Xue H, Huang L, Xie Y, Wang J, Peng Y, Tang Y. Three Gd-based magnetic refrigerant materials with high magnetic entropy: From di-nuclearity to hexa-nuclearity to octa-nuclearity. Front Chem 2022; 10:963203. [PMID: 36247677 PMCID: PMC9559567 DOI: 10.3389/fchem.2022.963203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022] Open
Abstract
Magnetocaloric effect (MCE) is one of the most promising features of molecular-based magnetic materials. We reported three Gd-based magnetic refrigerant materials, namely, Gd2(L)(NO3)(H2O)‧CH3CN‧H2O (1, H2L = (Z)-N-[(1E)-(2-hydroxy-3-methphenyl)methylidene]pyrazine-2-carbohydrazonic acid), {Gd6(L)6(CO3)2(CH3OH)2(H2O)3Cl}Cl‧4CH3CN (2), and Gd8(L)8(CO3)4(H2O)8‧2H2O (3). Complex 1 contains two GdIII ions linked by two η2:η1:η1:η1:μ2-L2- ligands, which are seven-coordinated in a capped trigonal prism, and complex 2 possesses six GdIII ions, contributing to a triangular prism configuration. For complex 3, eight GdIII ions form a distorted cube arrangement. Moreover, the large values of magnetic entropy in the three complexes prove to be excellent candidates as cryogenic magnetic coolants.
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Affiliation(s)
- Minmin Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Chengyuan Sun
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Yujia Gao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Hong Xue
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Ling Huang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Yutian Xie
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
| | - Jin Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
- *Correspondence: Jin Wang, ; Yuanyuan Peng, ; Yanfeng Tang,
| | - Yuanyuan Peng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
- *Correspondence: Jin Wang, ; Yuanyuan Peng, ; Yanfeng Tang,
| | - Yanfeng Tang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
- *Correspondence: Jin Wang, ; Yuanyuan Peng, ; Yanfeng Tang,
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Wang WM, Xin XY, Qiao N, Wu ZL, Li L, Zou JY. Self-assembly of octanuclear Ln(III)-based clusters: their large magnetocaloric effects and highly efficient conversion of CO 2. Dalton Trans 2022; 51:13957-13969. [PMID: 36040689 DOI: 10.1039/d2dt01892f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The design and construction of high-nuclear lanthanide clusters with fascinating topology and functional properties have been an active area of research, however, the development of an effective approach for obtaining high-nuclear lanthanide clusters with multifunctional properties is still extremely difficult. Up to now, a systematic approach for guiding the further expansion of Ln(III)-based clusters showing good functional properties is lacking. Herein, we design and synthesize a polydentate Schiff base ligand (HL), which reacts with β-diketonate salts Ln(acac)3·2H2O, and a series of Ln8 clusters [Ln8(acac)6(L)2(μ3-O)6(μ2-C2H5O)4(μ2-Hacac)2]·2CH3CN (Ln(III) = Gd (1), Dy (2), and Ho (3); HL = pyridine-2-carboxylic acid (5-hydroxymethyl-furan-2-ylmethylene)-hydrazide, Hacac = acetylacetone) have been successfully synthesized. Single-crystal X-ray diffraction studies reveal that clusters 1-3 are isostructural and can be viewed as a Ln8 core bridged by eighteen μ2-O atoms, six μ3-O atoms and two μ4-O atoms. Magnetic studies show that cluster 1-Gd8 displays a large magnetocaloric effect with -ΔSm = 46.14 J kg-1 K-1 (T = 2.0 K and ΔH = 7.0 T); cluster 2-Dy8 exhibits single-molecule magnet behavior under zero-field conditions. It is worth mentioning that the -ΔSm of cluster 1-Gd8 is larger than that of most reported polynuclear Gd(III)-based clusters; the 2-Dy8 cluster is one of the rare polynuclear Lnn SMMs (n ≥ 8) under zero dc field. Importantly, these Ln(III)-based clusters (1-3) can catalyze the cycloaddition of CO2 with epoxides with high efficiency under mild conditions; and cluster 1-Gd8 as a catalyst could be reused at least three times without obvious loss of catalytic performance.
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Affiliation(s)
- Wen-Min Wang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China.,Department of Chemistry, Tianjin University, Tianjin, 300072, China.
| | - Xiao-Yan Xin
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Na Qiao
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Zhi-Lei Wu
- Department of Chemistry, Tianjin University, Tianjin, 300072, China. .,College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Ling Li
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang, 330096, China.
| | - Ji-Yong Zou
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang, 330096, China. .,Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, PR China
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Wang HT, Niu XY, Zhang GX, Jiao YH, Wu JY, Zhang Y, Hou YL. Two butterfly-shaped LnIII2 compounds constructed by a multidentate Schiff base ligand: Structures, fluorescence properties and SMMs behaviors. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Konieczny P, Sas W, Czernia D, Pacanowska A, Fitta M, Pełka R. Magnetic cooling: a molecular perspective. Dalton Trans 2022; 51:12762-12780. [PMID: 35900061 DOI: 10.1039/d2dt01565j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The magnetocaloriceffect is considered as an energy-efficient and environmentally friendly technique which can take cooling technology to the next level. Apart from its commercial application at room temperature, magnetic refrigeration is an up-and-coming solution for the cryogenic regime, especially as an alternative to He3 systems. Molecular magnets reveal advantageous features for ultra-low cooling which are competitive with intermetallic and lanthanide alloys. Here, we present a guide to the current status of magnetocaloric effect research of molecular magnets with a theoretical background focused on the inverse magnetocaloric effect and an overview of recent results and developments, including the rotating magnetocaloric effect.
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Affiliation(s)
- Piotr Konieczny
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Wojciech Sas
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Dominik Czernia
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | | | - Magdalena Fitta
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Robert Pełka
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
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Yuan Z, Qin Y, Sha J, Wang Y, Zhang H. Two single-molecule magnets {Dy4O8} based on mixed ligand strategy. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Qiao N, Li XX, Chen Y, Xin XY, Yang C, Dong SS, Wang YZ, Li XJ, Hua YP, Wang WM. Three Ln2 compounds (Gd2, Tb2 and Dy2) with a Ln2O2 center showing magnetic refrigeration property and single-molecular magnet behavior. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Taha ZA, Ababneh TS, Hijazi AK, AL-Aqtash SM, Al-Momani WM, Mhaidat I. Synthesis, spectral characterization, thermal, computational and antibacterial studies of lanthanide complexes with 2-fluorobenzoic acid-(5-R-2-hydroxy-benzylidene)hydrazide {R = chloro or bromo). JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2021.101400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Larger magnetocaloric effect and single molecule magnet behavior in dinuclear Ln(III)-based compounds constructed from Schiff base ligand. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Hcini F, Hcini S, Almoneef MM, Dhaou MH, Alshammari MS, Mallah A, Zemni S, Lefi N, Bouazizi M. Thermal, microstructural, optical, magnetic and magnetocaloric studies for Ni0.5Mn0.5Cr2O4 chromite spinel prepared using sol-gel method. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130769] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Wang WM, Wu ZL, Cui JZ. Molecular assemblies from linear-shaped Ln 4 clusters to Ln 8 clusters using different β-diketonates: disparate magnetocaloric effects and single-molecule magnet behaviours. Dalton Trans 2021; 50:12931-12943. [PMID: 34581356 DOI: 10.1039/d1dt01344k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of tetranuclear lanthanide-based clusters [Ln4(dbm)6(L)2(CH3OH)4]·2CH3OH (Ln(III) = Gd (1), Dy (2), and Ho (3); H3L = 2-[(2-(hydroxyimino)propanehydrazide)methyl]-2,3-dihydroxybenzaldehyde, Hdbm = dibenzoylmethane) and octanuclear lanthanide-based clusters [Ln8(HL)10(CH3O)4(CH3OH)2]·6CH3OH (Ln(III) = Gd (4), Dy (5)) were assembled using a polydentate Schiff-base ligand H3L and two different β-diketone salts via a solvothermal method, and their structures and magnetic properties have been characterized. Interestingly, β-diketones play an important role in assembling and affecting the structures of Ln4 to Ln8 clusters. This is the first use of β-diketone to affect the structures of polynuclear Ln(III)-based clusters from linear-shaped Ln4 clusters to Ln8 clusters. Magnetic studies revealed that antiferromagnetic interactions exist in clusters 1-Gd4 and 4-Gd8. More importantly, clusters 1-Gd4 and 4-Gd8 display significant cryogenic magnetic refrigeration properties (-ΔSm = 24.88 J kg-1 K-1 for 1-Gd4 and -ΔSm = 32.52 J kg-1 K-1 for 4-Gd8); the results show that cluster 4-Gd8 exhibits a larger magnetocaloric effect than 1-Gd4. Cluster 2-Dy4 shows remarkable single-molecule magnet (SMM) behavior (ΔE/kB = 67.5 K and τ0 = 3.06 × 10-7 s) under a zero dc field, and 5-Dy8 exhibits a field-induced SMM-like behavior (ΔE/kB = 39.83 K and τ0 = 2.12 × 10-7 s) under a 5000 Oe dc field.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry, Taiyuan Normal University, Jinzhong, 030619, China.,Department of Chemistry, Tianjin University, Tianjin, 300072, China.
| | - Zhi-Lei Wu
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.,Department of Chemistry, Tianjin University, Tianjin, 300072, China.
| | - Jian-Zhong Cui
- Department of Chemistry, Tianjin University, Tianjin, 300072, China.
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Chen SH, He WJ, Zhu YJ, Song HT. A luminescent turn-off sensor for Cr(VI) anions recognition derived from a Zn(II)-based metal–organic framework. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120498] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Hua YP, Xue CL, Zhang WM, Liu Y, Tian JL, Wang WM, Fang M. Structure, fluorescence properties and slow magnetic relaxation of Dy2 and Tb4 clusters. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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A rhombic shaped {GdIII2CoII2} heterometallic cluster exhibiting larger cryogenic magnetocaloric effect. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Shi QH, Xue CL, Fan CJ, Yan LL, Qiao N, Fang M, Wang SF. Magnetic refrigeration property and slow magnetic relaxation behavior of five dinuclear Ln(III)-based compounds. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li L, Yang LR, Qiao N, Xue MM, Fang ZX, Ren J, Wang HT, Fang M, Wang WM. A novel tetranuclear Gd(III)-based cluster showing larger magnetic refrigeration property. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Wang WM, Xue CL, Jing RY, Ma X, Yang LN, Luo SC, Wu ZL. Two hexanuclear lanthanide Ln6III clusters featuring remarkable magnetocaloric effect and slow magnetic relaxation behavior. NEW J CHEM 2020. [DOI: 10.1039/d0nj03442h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel hexanuclear lanthanide clusters (1 and 2) were successfully prepared. Magnetic investigations reveal that 1 exhibits remarkable magnetocaloric effect and 2 displays interesting slow magnetic relaxation behaviors.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- P. R. China
| | - Cai-Long Xue
- Department of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- P. R. China
| | - Ru-Yi Jing
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- P. R. China
| | - Xin Ma
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- P. R. China
| | - Lu-Na Yang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- P. R. China
| | - Shu-Chang Luo
- College of Chemical Engineering
- Guizhou University of Engineering Science
- Bijie 551700
- P. R. China
| | - Zhi-Lei Wu
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- P. R. China
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