1
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Manohar EM, Dhandapani HN, Roy S, Pełka R, Rams M, Konieczny P, Tothadi S, Kundu S, Dey A, Das S. Tetranuclear Co II4O 4 Cubane Complex: Effective Catalyst Toward Electrochemical Water Oxidation. Inorg Chem 2024; 63:4883-4897. [PMID: 38494956 DOI: 10.1021/acs.inorgchem.3c03956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
The reaction of Co(OAc)2·6H2O with 2,2'-[{(1E,1'E)-pyridine-2,6-diyl-bis(methaneylylidene)bis(azaneylylidene)}diphenol](LH2) a multisite coordination ligand and Et3N in a 1:2:3 stoichiometric ratio forms a tetranuclear complex Co4(L)2(μ-η1:η1-OAc)2(η2-OAc)2]· 1.5 CH3OH· 1.5 CHCl3 (1). Based on X-ray diffraction investigations, complex 1 comprises a distorted Co4O4 cubane core consisting of two completely deprotonated ligands [L]2- and four acetate ligands. Two distinct types of CoII centers exist in the complex, where the Co(2) center has a distorted octahedral geometry; alternatively, Co(1) has a distorted pentagonal-bipyramidal geometry. Analysis of magnetic data in 1 shows predominant antiferromagnetic coupling (J = -2.1 cm-1), while the magnetic anisotropy is the easy-plane type (D1 = 8.8, D2 = 0.76 cm-1). Furthermore, complex 1 demonstrates an electrochemical oxygen evolution reaction (OER) with an overpotential of 325 mV and Tafel slope of 85 mV dec-1, required to attain a current density of 10 mA cm-2 and moderate stability under alkaline conditions (pH = 14). Electrochemical impedance spectroscopy studies reveal that compound 1 has a charge transfer resistance (Rct) of 2.927 Ω, which is comparatively lower than standard Co3O4 (5.242 Ω), indicating rapid charge transfer kinetics between electrode and electrolyte solution that enhances higher catalytic activity toward OER kinetics.
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Affiliation(s)
- Ezhava Manu Manohar
- Department of Basic Sciences, Chemistry Discipline, Institute of Infrastructure, Technology, Research, and Management, Near Khokhra Circle, Maninagar East, Ahmedabad, Gujarat 380026, India
| | - Hariharan N Dhandapani
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Soumalya Roy
- Department of Basic Sciences, Chemistry Discipline, Institute of Infrastructure, Technology, Research, and Management, Near Khokhra Circle, Maninagar East, Ahmedabad, Gujarat 380026, India
| | - Robert Pełka
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, Krakow PL-31342, Poland
| | - Michał Rams
- Institute of Physics, Jagiellonian University, Łojasiewicza 11, Kraków 30348, Poland
| | - Piotr Konieczny
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, Krakow PL-31342, Poland
| | - Srinu Tothadi
- Analytical and Environmental Sciences Division and Centralized Instrumentation Facility, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India
| | - Subrata Kundu
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Atanu Dey
- Department of Chemistry, Gandhi Institute of Technology and Management (GITAM), NH 207, Nagadenehalli, Doddaballapur Taluk, Bengaluru, Karnataka 561203, India
| | - Sourav Das
- Department of Basic Sciences, Chemistry Discipline, Institute of Infrastructure, Technology, Research, and Management, Near Khokhra Circle, Maninagar East, Ahmedabad, Gujarat 380026, India
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2
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Qiao N, Xin XY, Guan XF, Zhang CX, Wang WM. Self-Assembly Bifunctional Tetranuclear Ln 2Ni 2 Clusters: Magnetic Behaviors and Highly Efficient Conversion of CO 2 under Mild Conditions. Inorg Chem 2022; 61:15098-15107. [PMID: 36094135 DOI: 10.1021/acs.inorgchem.2c02180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of heterometallic tetranuclear clusters, Ln2Ni2(NO3)4L4(μ3-OCH3)2·2(CH3CN) (Ln = Gd(1), Tb(2), Dy(3), Ho(4), Er(5); HL = methyl 3-methoxysalicylate), were synthesized solvothermally. The intramolecular synergistic effect of two metal centers of Ln(III) and Ni(II) and the exposed multimetallic sites serving as Lewis acid activators greatly increase the efficiency of the CO2 conversion, and the yield for cluster 3 can be achieved at 96% at atmospheric pressure and low temperature. In particular, the self-assembly multimetal center with polydentate ligand shows good generality and enhanced recyclability. The design of such 3d-4f heterometallic clusters provides an effective strategy for the conversion of CO2 under greener conditions. Meanwhile, magnetic investigations indicate that cluster 1 is a good candidate for magnetic refrigerant materials with a relatively large magnetocaloric effect (MCE) (-ΔSm = 28.5 J kg-1 K-1 at 3.0 K and 7.0 T), and cluster 3 shows single-molecular magnet behavior under zero dc field. Heterometallic clusters with special magnetic properties and good catalytic behavior for the conversion of CO2 are rare. Thus, they are potential bifunctional materials applied in practice.
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Affiliation(s)
- Na Qiao
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.,College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Xiao-Yan Xin
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Xiao-Fen Guan
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Chen-Xi Zhang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Wen-Min Wang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
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3
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Heterometallic Complexes Containing the NiII-LnIII-NiII Moiety—Structures and Magnetic Properties. CRYSTALS 2020. [DOI: 10.3390/cryst10121117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review summarizes the structural characteristics and magnetic properties of trinuclear complexes containing the NiII-LnIII-NiII moiety and also oligonuclear complexes and coordination polymers containing the same trinuclear moiety. The ligands used are mainly polydentate Schiff base ligands and reduced Schiff base ligands and, in some cases, oximato, β-diketonato, pyridyl ketone ligands and others. The compounds reported are restricted to those containing one, two and three oxygen atoms as bridges between the metal ions; examples of carboxylato and oximato bridging are also included due to structural similarity. The magnetic properties of the complexes range from ferro- to antiferromagnetic depending on the nature of the lanthanide ion.
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4
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Georgopoulou AN, Pissas M, Psycharis V, Sanakis Y, Raptopoulou CP. Trinuclear Ni II-Ln III-Ni II Complexes with Schiff Base Ligands: Synthesis, Structure, and Magnetic Properties. Molecules 2020; 25:E2280. [PMID: 32408647 PMCID: PMC7288099 DOI: 10.3390/molecules25102280] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/30/2020] [Accepted: 05/06/2020] [Indexed: 11/29/2022] Open
Abstract
The reaction of the Schiff base ligand o-OH-C6H4-CH=N-C(CH2OH)3, H4L, with Ni(O2CMe)2∙4H2O and lanthanide nitrate salts in a 4 : 2 : 1 ratio lead to the formation of the trinuclear complexes [Ni2Ln(H3L)4(O2CMe)2](NO3) (Ln = Sm (1), Eu (2), Gd (3), Tb (4)). The complex cations contain the strictly linear NiII-LnIII-NiII moiety. The central LnIII ion is bridged to each of the terminal NiII ions through two deprotonated phenolato groups from two different ligands. Each terminal NiII ion is bound to two ligands in distorted octahedral N2O4 environment. The central lanthanide ion is coordinated to four phenolato oxygen atoms from the four ligands, and four carboxylato oxygen atoms from two acetates which are bound in the bidentate chelate mode. The lattice structure of complex 4 consists of two interpenetrating, supramolecular diamond like lattices formed through hydrogen bonds among neighboring trinuclear clusters. The magnetic properties of 1-4 were studied. For 3 the best fit of the magnetic susceptibility and isothermal M(H) data gave JNiGd = +0.42 cm-1, D = +2.95 cm-1 with gNi = gGd = 1.98. The ferromagnetic nature of the intramolecular Ni···Gd interaction revealed ground state of total spin S = 11/2. The magnetocaloric effect (MCE) parameters for 3 show that the change of the magnetic entropy (-ΔSm) reaches a maximum of 14.2 J kg-1 K-1 at 2 K. A brief literature survey of complexes containing the NiII-LnIII-NiII moiety is discussed in terms of their structural properties.
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Affiliation(s)
| | | | | | | | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, 15310 Athens, Greece; (A.N.G.); (M.P.); (V.P.); (Y.S.)
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5
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Shukla P, Roy S, Dolui D, Cañón-Mancisidor W, Das S. Pentanuclear Spirocyclic Ni4
Ln Derivatives: Field Induced Slow Magnetic Relaxation in the Dysprosium and Erbium Analogues. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901350] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Pooja Shukla
- Department of Chemistry; Institute of Infrastructure Technology Research And Management; Near Khokhra Circle, Maninagar East 380026 Ahmedabad Gujarat India
| | - Soumalya Roy
- Department of Chemistry; Institute of Infrastructure Technology Research And Management; Near Khokhra Circle, Maninagar East 380026 Ahmedabad Gujarat India
| | - Dependu Dolui
- Discipline of Chemistry; Indian Institute of Technology; 382355 Gandhinagar Gujarat India
| | - Walter Cañón-Mancisidor
- Facultad de Químicas y Biología; Departamento de Química de Materiales; Universidad de Santiago de Chile (USACH); Santiago Chile
- Departamento de Química de Materiales; Center for the Development of Nanoscience and Nanotechnology (CEDENNA); Santiago Chile
| | - Sourav Das
- Department of Chemistry; Institute of Infrastructure Technology Research And Management; Near Khokhra Circle, Maninagar East 380026 Ahmedabad Gujarat India
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6
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Dey A, Acharya J, Chandrasekhar V. Heterometallic 3d–4f Complexes as Single‐Molecule Magnets. Chem Asian J 2019; 14:4433-4453. [DOI: 10.1002/asia.201900897] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Atanu Dey
- Tata Institute of Fundamental Research Hyderabad Gopanpally Hyderabad- 500107 India
| | - Joydev Acharya
- Department of ChemistryIndian Institute of Technology Kanpur Kanpur- 208016 India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad Gopanpally Hyderabad- 500107 India
- Department of ChemistryIndian Institute of Technology Kanpur Kanpur- 208016 India
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7
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Chakraborty A, Goura J, Bag P, Chandrasekhar V. Ni
II
‐Ln
III
Heterometallic Complexes as Single‐Molecule Magnets. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801428] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Amit Chakraborty
- Tata Institute of Fundamental Research Hyderabad Gopanpally 500107 Hyderabad India
| | - Joydeb Goura
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Prasenjit Bag
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad Gopanpally 500107 Hyderabad India
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
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8
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Peng Y, Mereacre V, Anson CE, Powell AK. Butterfly M 2 IIIEr 2 (M III = Fe and Al) SMMs: Synthesis, Characterization, and Magnetic Properties. ACS OMEGA 2018; 3:6360-6368. [PMID: 31458819 PMCID: PMC6644375 DOI: 10.1021/acsomega.8b00550] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/27/2018] [Indexed: 06/10/2023]
Abstract
The reaction of N-(2-pyridylmethyl)iminodiethanol (H2L, pmide), FeCl2·4H2O or AlCl3·6H2O with ErCl3·6H2O and p-Me-PhCO2H in the ratio of 2:1:1:4 in the presence of Et3N in MeOH and MeCN yielded compounds [Fe2Er2(μ3-OH)2(pmide)2(p-Me-PhCO2)6]·2MeCN (1) and [Al2Er2(μ3-OH)2(pmide)2(p-Me-PhCO2)6]·2MeCN (2). These two complexes are isostructural, possessing a planar butterfly motif with the ErIII ions in the wingtip positions. Both compounds show single molecule magnet (SMM) behavior. For the [Al2Er2] compound, the slow relaxation of the magnetization under zero applied direct current (dc) field does not show maxima, but the relaxation processes could be analyzed using an applied dc field of 1000 Oe. In-depth alternating current measurements under different dc fields on the [Fe2Er2] compound reveals that the Fe-Fe and Fe-Er interactions speed up the relaxation and decrease the energy barrier height of the SMM in comparison with the [Al2Er2] case.
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Affiliation(s)
- Yan Peng
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Postfach
3640, 76021 Karlsruhe, Germany
| | - Valeriu Mereacre
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Christopher E. Anson
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Annie K. Powell
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Postfach
3640, 76021 Karlsruhe, Germany
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9
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Kalita P, Goura J, Herrera JM, Colacio E, Chandrasekhar V. Heterometallic Octanuclear Ni II 4Ln III 4 (Ln = Y, Gd, Tb, Dy, Ho, Er) Complexes Containing Ni II 2Ln III 2O 4 Distorted Cubane Motifs: Synthesis, Structure, and Magnetic Properties. ACS OMEGA 2018; 3:5202-5211. [PMID: 31458734 PMCID: PMC6641754 DOI: 10.1021/acsomega.8b00292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/30/2018] [Indexed: 06/10/2023]
Abstract
The reaction of 2-methoxy-6-[{2-(2-hydroxyethylamino)ethylimino}methyl] phenol (LH3) with lanthanide metal salts followed by the addition of nickel acetate allowed isolation of a family of octanuclear complexes, [Ni4Ln4(μ2-OH)2(μ3-OH)4(μ-OOCCH3)8(LH2)4]·(OH)2·xH2O. Single crystal X-ray diffraction studies of these complexes reveal that their central metallic core consists of two tetranuclear [Ni2Ln2O4] cubane subunits fused together by acetate and hydroxide bridges. The magnetic study of these complexes reveals a ferromagnetic interaction between the LnIII and the NiII center. The magnitude of exchange coupling between the NiII and LnIII center, parametrized from the magnetic data of the Gd analogue, gives J = +0.86 cm-1. The magneto caloric effect, studied for the NiII 4GdIII 4 complex, shows a maximum of magnetic entropy change, -ΔS m = 22.58 J kg-1 K-1 at 3 K for an applied external field of 5 T.
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Affiliation(s)
- Pankaj Kalita
- School
of Chemical Sciences, National Institute
of Science Education and Research, Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Joydeb Goura
- School
of Chemical Sciences, National Institute
of Science Education and Research, Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar 752050, Odisha, India
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, India
| | - Juan Manuel Herrera
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Enrique Colacio
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Vadapalli Chandrasekhar
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur 208016, India
- Centre
for Interdisciplinary Sciences, Tata Institute
of Fundamental Research Hyderabad, Gopanpally, Hyderabad 500107, India
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10
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Majumdar D, Biswas JK, Mondal M, Surendra Babu M, Metre RK, Das S, Bankura K, Mishra D. Coordination of N,O-donor appended Schiff base ligand (H 2 L 1 ) towards Zinc(II) in presence of pseudohalides: Syntheses, crystal structures, photoluminescence, antimicrobial activities and Hirshfeld surfaces. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Dong HM, Zhang ZC, Li HY, Liu ZY, Yang EC, Zhao XJ. High-nuclear heterometallic oxime clusters assembled from triangular subunits: solvothermal syntheses, crystal structures and magnetic properties. Dalton Trans 2018; 47:169-179. [DOI: 10.1039/c7dt03692b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Three series of 3d–4f oxime clusters with slightly low magnetic relaxation or large entropy change were solvothermally constructed through the flexible connectivity of triangular {Ln3(μ3-OH)} subunits.
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Affiliation(s)
- Hui-Ming Dong
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
| | - Zhi-Chao Zhang
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
| | - Hai-Yan Li
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
| | - Zhong-Yi Liu
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
| | - En-Cui Yang
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
| | - Xiao-Jun Zhao
- College of Chemistry
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
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12
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Tan XF, Zhou J, Zou HH, Fu L, Tang Q. A Series of Lanthanide-Germanate Oxo Clusters Decorated by 1,10-Phenanthroline Chromophores. Inorg Chem 2017; 56:10361-10369. [PMID: 28832126 DOI: 10.1021/acs.inorgchem.7b01271] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of lanthanide-germanate oxo clusters, [Ln8(phen)2Ge12(μ3-O)24T12(H2O)16]·2H2O [Ln = Dy (1a) and Er (1b); T = -CH2CH2COO- group; phen = 1,10-phenanthroline], [Ln8(phen)2Ge12(μ3-O)24T12(H2O)16]·2phen·16H2O [Ln = Sm (2a), Eu (2b), and Gd (2c)], and [Ho8(phen)2Ge12(μ3-O)24T12(H2O)14]·2phen·13H2O (3), have been hydrothermally synthesized from the reactions of bis(carboxyethylgermanium sesquioxide) and Ln2O3 with auxiliary phen chromophores. Compounds 1a and 1b consist of cage clusters [Ln8(phen)2Ge12(μ3-O)24T12(H2O)16] and free H2O molecules, where cage clusters are arranged in a CsCl type, while compounds 2a-2c consist of cage clusters [Ln8(phen)2Ge12(μ3-O)24T12(H2O)16], free phen, and free H2O molecules, where cage clusters are arranged in a NaCl type. Compound 3 consists of the one-dimensional neutral chain [Ho8(phen)2Ge12(μ3-O)24T12(H2O)14]n and free H2O molecules. These compounds provide the first examples of p-f heterometallic [Ge-O-Ln] oxo clusters decorated by phen chromophores. The photoluminescent and magnetic properties of all compounds have been investigated.
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Affiliation(s)
- Xiao-Feng Tan
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University , Chongqing 401331, P. R. China
| | - Jian Zhou
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University , Chongqing 401331, P. R. China
| | - Hua-Hong Zou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University , Guilin 541004, P. R. China
| | - Lianshe Fu
- Department of Physics and CICECO, Aveiro Institute of Materials, University of Aveiro , Aveiro 3810-193, Portugal
| | - Qiuling Tang
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University , Chongqing 401331, P. R. China
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13
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Zhang WY, Tian YM, Li HF, Chen P, Zhang YQ, Yan PF, Sun WB. Strictly linear trinuclear Dy-Ca/Mg-Dy single-molecule magnets: the impact of long-range f-f ferromagnetic interactions on suppressing quantum tunnelling of magnetization leading to slow magnetic relaxation. Dalton Trans 2017; 46:8259-8268. [PMID: 28613300 DOI: 10.1039/c7dt01395g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structural characterization and magnetic properties of four heterometallic complexes with formulas Ln2M(OQ)8 [Ln(iii) = Dy, M(ii) = Ca (1), Mg (2); Ln(iii) = Er, M(ii) = Ca (3), Mg (4); HOQ = 8-hydroxyquinoline] are reported. Complexes display a perfectly linear arrangement of three metal ions involving two terminal Ln(iii) ions and one central alkaline earth M(ii) ion, and they are bridged by three phenolato oxygen atoms from three 8-hydroxyquinoline ligands. Direct-current (dc) magnetic susceptibility studies show that there exists a long-range ferromagnetic (FM) interaction between two f-electronic centers in Dy-based complexes 1 and 2 albeit they are separated by diamagnetic alkaline earth ions, and the FM interaction has been successfully reproduced by ab initio calculations. Alternating current (ac) magnetic susceptibility measurements indicate that complexes 1 and 2 exhibit significant single-molecule magnet (SMM) behaviors. This is mostly attributed to the parallel magnetic axes of individual Dy(iii) sites aligning closely to the Dy-M-Dy direction, and the linearly extending magnetic susceptibility tensors of each ion lead to the FM interaction. The dc and ac susceptibility studies of the intramolecularly diluted complexes reveal that the f-f coupling suppresses the QTMs significantly in the absence of the external magnetic field.
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Affiliation(s)
- Wan-Ying Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150080, P. R. China.
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14
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Bartolomé E, Arauzo A, Luzón J, Bartolomé J, Bartolomé F. Magnetic Relaxation of Lanthanide-Based Molecular Magnets. HANDBOOK OF MAGNETIC MATERIALS 2017. [DOI: 10.1016/bs.hmm.2017.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Chakraborty A, Goura J, Bag P, Bar AK, Sutter JP, Chandrasekhar V. Windmill-shaped octanuclear Zn/Ln (Ln III = Dy, Tb, Ho) heterometallic ensembles supported by a tetraferrocene scaffold. Dalton Trans 2016; 45:17633-17643. [PMID: 27747342 DOI: 10.1039/c6dt03144g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Utilizing a new ferrocene-based compartmental ligand, H4L (1), a series of novel heterometallic complexes [{LZn(μ-OAc)Dy}4(μ4-H2O)] (2), [{LZn(μ-OAc)Tb}4(μ4-H2O)] (3), [{LZn(μ-OAc)Ho}4(μ4-H2O)] (4), [L = Fe[(C5H4){-C(Me)[double bond, length as m-dash]N-N[double bond, length as m-dash]C6H3-(o-O)(m-O)}]2] were synthesized and characterized. 2 and 3 crystallize in the monoclinic crystal system in the I2/m space group, whereas 4 crystallizes in the tetragonal crystal system in the I4/m space group. The tetra deprotonated ligand L4- has two distinct coordination compartments: one pocket (2N, 2O) suitable for the transition metal (3d) ions and another pocket (4O) suitable for lanthanide (4f) metal ions. Additionally, the terminal phenoxo group can be utilized for cluster expansion. In all the complexes, the ZnII ion is in a perfect square pyramidal (2N, 3O) geometry whereas the lanthanide ion has a coordination number of eight (8O) in a distorted biaugmented trigonal-prism geometry. The electrochemical properties of 2 and 3 along with ligand H4L (1) were studied by cyclic voltammetry (CV). All the complexes display a similar type of electrochemical behavior viz., one quasi-reversible oxidation typical of a ferrocene/ferrocenium motif. The magnetic properties of all the complexes have also been investigated.
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Affiliation(s)
- Amit Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India.
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16
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Wang XT, Dong HM, Wang XG, Yang EC, Zhao XJ. Two Oxime-Based { LnIII3Ni II3} Clusters with Triangular { Ln3(μ 3-Ο 2)} 7+Core: Solvothermal Syntheses, Crystal Structures, and Magnetic Properties. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201600253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao-Ting Wang
- College of Chemistry; Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Hui-Ming Dong
- College of Chemistry; Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education; Tianjin Normal University; 300387 Tianjin P. R. China
- Department of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 300071 Tianjin P. R. China
| | - Xiu-Guang Wang
- College of Chemistry; Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education; Tianjin Normal University; 300387 Tianjin P. R. China
| | - En-Cui Yang
- College of Chemistry; Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Xiao-Jun Zhao
- College of Chemistry; Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education; Tianjin Normal University; 300387 Tianjin P. R. China
- Department of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 300071 Tianjin P. R. China
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17
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Zhang S, Cheng P. Coordination-Cluster-Based Molecular Magnetic Refrigerants. CHEM REC 2016; 16:2077-126. [PMID: 27381662 DOI: 10.1002/tcr.201600038] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 02/03/2023]
Abstract
Coordination polymers serving as molecular magnetic refrigerants have been attracting great interest. In particular, coordination cluster compounds that demonstrate their apparent advantages on cryogenic magnetic refrigerants have attracted more attention in the last five years. Herein, we mainly focus on depicting aspects of syntheses, structures, and magnetothermal properties of coordination clusters that serve as magnetic refrigerants on account of the magnetocaloric effect. The documented molecular magnetic refrigerants are classified into two primary categories according to the types of metal centers, namely, homo- and heterometallic clusters. Every section is further divided into several subgroups based on the metal nuclearity and their dimensionalities, including discrete molecular clusters and those with extended structures constructed from molecular clusters. The objective is to present a rough overview of recent progress in coordination-cluster-based molecular magnetic refrigerants and provide a tutorial for researchers who are interested in the field.
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Affiliation(s)
- Shaowei Zhang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of the Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, P.R. China.,Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE) Nankai University, Tianjin, 300071, P.R. China
| | - Peng Cheng
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE) Nankai University, Tianjin, 300071, P.R. China.,Collaborative Innovation Center of Chemical Science and Engineering Nankai University, Tianjin, 300071, P.R. China
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18
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Das S, Dey A, Kundu S, Biswas S, Narayanan RS, Titos-Padilla S, Lorusso G, Evangelisti M, Colacio E, Chandrasekhar V. Decanuclear Ln10Wheels and Vertex-Shared Spirocyclic Ln5Cores: Synthesis, Structure, SMM Behavior, and MCE Properties. Chemistry 2015; 21:16955-67. [DOI: 10.1002/chem.201501992] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Indexed: 11/07/2022]
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19
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Li XL, Min FY, Wang C, Lin SY, Liu Z, Tang J. Utilizing 3d–4f Magnetic Interaction to Slow the Magnetic Relaxation of Heterometallic Complexes. Inorg Chem 2015; 54:4337-44. [DOI: 10.1021/acs.inorgchem.5b00019] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Lei Li
- State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Fan-Yong Min
- State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Chao Wang
- State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Shuang-Yan Lin
- State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Zhiliang Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource
Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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20
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Das S, Bejoymohandas KS, Dey A, Biswas S, Reddy MLP, Morales R, Ruiz E, Titos-Padilla S, Colacio E, Chandrasekhar V. Amending the Anisotropy Barrier and Luminescence Behavior of Heterometallic Trinuclear Linear [MIILnIIIMII] (LnIII=Gd, Tb, Dy; MII=Mg/Zn) Complexes by Change from Divalent Paramagnetic to Diamagnetic Metal Ions. Chemistry 2015; 21:6449-64. [DOI: 10.1002/chem.201406666] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Indexed: 12/19/2022]
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21
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Meseguer C, Titos-Padilla S, Hänninen MM, Navarrete R, Mota AJ, Evangelisti M, Ruiz J, Colacio E. Single-Molecule Magnet Behavior and Magnetocaloric Effect in Ferromagnetically Coupled LnIII-NiII-NiII-LnIII (LnIII = DyIII and GdIII) Linear Complexes. Inorg Chem 2014; 53:12092-9. [DOI: 10.1021/ic501915j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Carlos Meseguer
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Silvia Titos-Padilla
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Mikko M. Hänninen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - R. Navarrete
- Departamento de Química Inorgánica, Facultad
de Farmacia, Universidad de Granada, Campus de Cartuja, 18071 Granada, Spain
| | - A. J. Mota
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Marco Evangelisti
- Instituto
de Ciencia de Materiales de Aragón (ICMA), Departamento de
Física de la Materia Condensada, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - José Ruiz
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
| | - Enrique Colacio
- Departamento
de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida de Fuentenueva s/n, 18071 Granada, Spain
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22
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Liu CM, Zhang DQ, Zhu DB. Hexanuclear [Ni2Ln4] clusters exhibiting enhanced magnetocaloric effect and slow magnetic relaxation. RSC Adv 2014. [DOI: 10.1039/c4ra07882a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Two hexanuclear [Ni2Ln4] aggregates exhibit either an enhanced magnetocaloric effect or slow magnetic relaxation, depending on the lanthanide ions chose.
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Affiliation(s)
- Cai-Ming Liu
- Beijing National Laboratory for Molecular Sciences
- Center for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, P. R. China
| | - De-Qing Zhang
- Beijing National Laboratory for Molecular Sciences
- Center for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, P. R. China
| | - Dao-Ben Zhu
- Beijing National Laboratory for Molecular Sciences
- Center for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, P. R. China
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