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Bhunia P, Maity S, Ghosh TK, Mondal A, Mayans J, Ghosh A. Cu(II)-Ln(III) (Ln = Gd, Tb and Dy) complexes of an unsymmetrical N 2O 3 donor ligand: field induced SMM behaviour of Cu(II)-Tb(III) complexes. Dalton Trans 2024; 53:9171-9182. [PMID: 38742576 DOI: 10.1039/d4dt00304g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Three new hetero-metallic CuII-LnIII complexes [(CuL)Gd(NO3)3(CH3OH)]n (1), [(CuL)Tb(NO3)3(H2O)]·[CuL] (2) and [(CuL)Dy(NO3)3(H2O)]·[CuL] (3) have been synthesized using a mono-nuclear Cu(II) complex, [CuL], of an unsymmetrically di-condensed N2O3 donor Schiff base ligand, N-(3-methoxysalicylidene)-N-(salicylidene)-1,2-ethylenediamine (H2L). Single crystal X-ray crystallography revealed that complex 1 is a nitrate bridged 1D chain of dinuclear Cu(II)-Gd(III) units whereas in 2 and 3, the dinuclear Cu(II)-Ln(III) units are co-crystallized with a [CuL] unit. The Ln(III) centers are nine coordinated with the geometry of a spherical capped square antiprism for Gd and spherical tricapped trigonal prism for Tb and Dy. The geometry of the Cu(II) center is distorted octahedral for complex 1 and distorted square planar for complexes 2 and 3. Temperature-dependent molar magnetic susceptibility measurements in 1-3 revealed the presence of overall ferromagnetic coupling between the Cu(II) and Ln(III) centers. Notably, field induced single-molecule magnet behavior was witnessed in the Tb(III) derivative (2). The ab initio calculations indicated that upon application of an external magnetic field, the tunneling in the ground state of complex 2 gets reduced and thereby field-induced SMM behaviour is observed. Besides, in the case of complex 1, BS-DFT calculations were carried out to gain further insights into the magnetic exchange coupling interactions between the Cu(II) and Gd(III) centers.
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Affiliation(s)
- Pradip Bhunia
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, India.
| | - Souvik Maity
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, India.
| | - Tanmoy Kumar Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, India.
| | - Arpan Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal by-pass road, Bhauri, Bhopal 462066, MP, India
| | - Júlia Mayans
- Departament de Química Inorgànica I Orgànica, SeccióInorgànica and Institut de Nanosciència and Nanotecnologia (IN2UB), MartíiFranqués 1-11, 08028 Barcelona, Spain
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700009, 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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Lada ZG, Polyzou CD, Nika V, Stamatatos TC, Konidaris KF, Perlepes SP. Adventures in the coordination chemistry of 2-pyridyl oximes: On the way to 3d/4f-metal coordination clusters. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Qasem KMA, Khan S, Fitta M, Akhtar MN, AlDamen MA, Shahid M, Saleh HAM, Ahmad M. A new {Cu3-Gd2} cluster as two-in-one functional material with unique topology acting as a refrigerant as well as adsorbent for cationic dye. CrystEngComm 2022. [DOI: 10.1039/d2ce00795a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new heterometallic cluster system, [Cu3Gd2(H3btp)2(OAc)6]3H2O {Cu3-Gd2} is designed by employing 1,3-Bis(tris(hydroxymethyl)methylamino)propane (H6btp) as a ligand. The cluster is characterized by FTIR, TGA, PXRD, SCXRD and topological analyses. The crystallography...
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Dermitzaki D, Pissas M, Psycharis V, Sanakis Y, Raptopoulou CP. Synthesis, crystal structures, magnetic and magnetocaloric studies of heterometallic enneanuclear {Cu7Gd2} complexes. Polyhedron 2021. [DOI: 10.1016/j.poly.2020.114960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Chen W, Zhou G, Gou Z, Wang S, Zhai Y, Han T, Schnack J, Zheng Y. Hendecanuclear [Cu6Gd5] magnetic cooler with high molecular symmetry of D3h. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.05.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Dermitzaki D, Raptopoulou CP, Psycharis V, Escuer A, Perlepes SP, Mayans J, Stamatatos TC. Further synthetic investigation of the general lanthanoid(iii) [Ln(iii)]/copper(ii)/pyridine-2,6-dimethanol/carboxylate reaction system: {CuLn} coordination clusters (Ln = Dy, Tb, Ho) and their yttrium(iii) analogue. Dalton Trans 2021; 50:240-251. [PMID: 33295895 DOI: 10.1039/d0dt03582c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In addition to previously studied {CuGd6}, {CuGd4}, {CuLn7} and {CuLn8} coordination clusters (Ln = trivalent lanthanide) containing pdm2- or Hpdm- ligands (H2pdm = pyridine-2,6-dimethanol) and ancillary carboxylate groups (RCO2-), the present work reports the synthesis and study of three new members of a fifth family of such complexes. Compounds [Cu5Ln4O2(OMe)4(NO3)4(O2CCH2But)2(pdm)4(MeOH)2] (Ln = Dy, 1; Ln = Tb, 2; Ln = Ho, 3) were prepared from the reaction of Ln(NO3)3·xH2O (x = 5, 6), CuX2·yH2O (X = ClO4, Cl, NO3; y = 6, 2 and 3, respectively), H2pdm, ButCH2CO2H and Et3N (2 : 2.5 : 2 : 1 : 9) in MeCN/MeOH. Rather surprisingly, the copper(ii)/yttrium(iii) analogue has a slightly different composition, i.e. [Cu5Y4O2(OMe)4(NO3)2(O2CCH2But)4(pdm)4(MeOH)2] (4). The structures of 1·4MeCN·1.5MeOH and 4·2MeOH were solved by single-crystal X-ray crystallography. The five CuII and four DyIII centres in 1 are held together by two μ5-O2-, four μ-MeO-, two syn,synη1:η1:μ ButCH2CO2-, four η2:η1:η2:μ3 pdm2- (each of these groups chelates a CuII atom and simultaneously bridges two DyIII atoms through its two -CH2O- arms) and two μ-MeOH ligands. The four terminal nitrato groups each chelate (η1:η1) a DyIII centre. The five CuII atoms are co-planar (by symmetry) forming a bow-tie arrangement; the four outer CuII atoms form a rectangle with edges of 3.061(1) and 6.076(1) Å. The four DyIII centres also form a rectangle that lies above and below the plane of the CuII centres, with edges of 3.739(1) and 5.328(1) Å. The two strictly planar rectangles are almost perpendicular. Two trigonal bipyramidal μ5-O2- groups link the perpendicular Cu5 and Dy4 frameworks together. The molecule 4 has a very similar structure to that of 1, differences being the replacement of the two chelating nitrato groups of 1 by two chelating ButCH2CO2- ligands in 4 and the coordination polyhedra of the LnIII and YIII atoms (Snub diphenoids in 1 and biaugmented trigonal prisms in 4). Dc magnetic susceptibility data (χM) on analytically pure samples of 1-3, collected in the 300-2 K range, indicate that ferromagnetic exchange interactions dominate leading to large spin ground states. The χMT vs. T data for 4 suggest moderately strong antiferromagnetic CuIICuII exchange interactions. Studies of the dynamic magnetic properties of the {Cu5Ln4} clusters show that 1 behaves as a SMM at zero field and 2 is a very weak field-induced SMM, while 3 exhibits only weak tails in the χ''Mvs. T plots at various ac frequencies at zero dc field.
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Affiliation(s)
- Despina Dermitzaki
- Department of Chemistry, University of Patras, 26504 Patras, Greece. and Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece
| | - Catherine P Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece
| | - Albert Escuer
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franquès 1-11, 08028-Barcelona, Spain
| | - Spyros P Perlepes
- Department of Chemistry, University of Patras, 26504 Patras, Greece. and Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ICE - HT), Platani, P.O. Box 1414, 26504, Patras, Greece
| | - Julia Mayans
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltran 2, 46980 Paterna, Spain.
| | - Theocharis C Stamatatos
- Department of Chemistry, University of Patras, 26504 Patras, Greece. and Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ICE - HT), Platani, P.O. Box 1414, 26504, Patras, Greece
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9
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Zhang L, Yang PP, Li LF, Hu YY, Mei XL. A tridecanuclear {ZnGd12} nanoscopic cluster exhibiting large magnetocaloric effect. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Anastasiadis NC, Lada ZG, Polyzou CD, Raptopoulou CP, Psycharis V, Konidaris KF, Perlepes SP. Synthetic strategies to {CoIII2LnIII} complexes based on 2-pyridyl oximes (Ln = lanthanide). INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Dermitzaki D, Psycharis V, Sanakis Y, Stamatatos TC, Pissas M, Raptopoulou CP. Extending the family of heptanuclear heterometallic Cu5Ln2 (Ln = Gd, Tb, Dy) complexes: Synthesis, crystal structures, magnetic and magnetocaloric studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Rajeshkumar T, Jose R, Remya PR, Rajaraman G. Theoretical Studies on Trinuclear {MnIII2GdIII} and Tetranuclear {MnIII2GdIII2} Clusters: Magnetic Exchange, Mechanism of Magnetic Coupling, Magnetocaloric Effect, and Magneto–Structural Correlations. Inorg Chem 2019; 58:11927-11940. [DOI: 10.1021/acs.inorgchem.9b01503] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thayalan Rajeshkumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Reshma Jose
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Premaja R. Remya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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13
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Nie Q, Qian J, Zhang C. Solvothermal synthesis, structure and properties of heterometallic coordination polymer based on metalloligand and alkaline-earth metal calcium. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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14
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Butterfly-shaped, heterometallic, hexanuclear, [FeIII2LnIII4] (LnIII = GdIII, TbIII, DyIII and HoIII) Complexes: Syntheses, structure and magnetism. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.08.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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A series of dinuclear lanthanide complexes derived from a hydroxyl-rich ligand: {Dy2} exhibiting single-molecule magnet behaviour. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.11.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Gao WS, Wang JM, Shi NN, Chen CN, Fan YH, Wang M. Electrocatalytic water oxidation studies of a tetranuclear Cu(ii) complex with cubane-like core Cu4(μ3-O)4. NEW J CHEM 2019. [DOI: 10.1039/c8nj06263c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bio-inspired cubane-like tetranuclear cluster [Cu4(pdmH)4(OAc)2](NO3)2·3H2O can electrocatalyze water oxidation under aqueous alkaline conditions through a PCET process.
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Affiliation(s)
- Wei-Song Gao
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- Qingdao
| | - Jin-Miao Wang
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- Qingdao
| | - Ning-Ning Shi
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- Qingdao
| | - Chang-Neng Chen
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- The Chinese Academy of Sciences
- Fuzhou
- China
| | - Yu-Hua Fan
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- Qingdao
| | - Mei Wang
- Key Laboratory of Marine Chemistry Theory and Technology
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Ocean University of China
- Qingdao
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17
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Maity S, Mondal A, Konar S, Ghosh A. The role of 3d–4f exchange interaction in SMM behaviour and magnetic refrigeration of carbonato bridged CuII2LnIII2 (Ln = Dy, Tb and Gd) complexes of an unsymmetrical N2O4 donor ligand. Dalton Trans 2019; 48:15170-15183. [DOI: 10.1039/c9dt02627d] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The role of exchange interaction between Cu(ii) and Ln(iii) ions in SMM behaviour and magnetocaloric effects has been extensively investigated by both experimental and theoretical CASSCF/RASSI-SO/SINGLE_ANISO methods.
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Affiliation(s)
- Souvik Maity
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
| | - Arpan Mondal
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Sanjit Konar
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Ashutosh Ghosh
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
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Mahapatra P, Koizumi N, Kanetomo T, Ishida T, Ghosh A. A series of CuII–LnIII complexes of an N2O3 donor asymmetric ligand and a possible CuII–TbIII SMM candidate in no bias field. NEW J CHEM 2019. [DOI: 10.1039/c8nj03512a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Among four isostructural heterometallic CuII–LnIII complexes (Ln = Tb, Dy, Ho or Er) of an N2O3 donor asymmetric ligand, only the CuII–TbIII complex shows SMM behavior at zero bias field but at applied bias field both the CuII–TbIII and CuII–DyIII complexes show SMM behavior.
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Affiliation(s)
- Prithwish Mahapatra
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
| | - Naoki Koizumi
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Takuya Kanetomo
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Takayuki Ishida
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Ashutosh Ghosh
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
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Zhang Y, Harman DG, Avdeev M, Karatchevtseva I. Cu(II) ion directed self-assembly of a Y8/Cu6 heterometallic coordination cage via an Y(III) metalloligand. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Worrell A, Sun D, Mayans J, Lampropoulos C, Escuer A, Stamatatos TC. Oximato-Based Ligands in 3 d/4 f-Metal Cluster Chemistry: A Family of {Cu 3Ln} Complexes with a "Propeller"-like Topology and Single-Molecule Magnetic Behavior. Inorg Chem 2018; 57:13944-13952. [PMID: 30351077 DOI: 10.1021/acs.inorgchem.8b02495] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The organic chelating and bridging ligands 9,10-phenanthrenedione-9-oxime (phenoxH) and 9,10-phenanthrenedione-9,10-dioxime (phendoxH2) were synthesized and subsequently employed for the first time in heterometallic 3 d/4 f-metal cluster chemistry. The general reaction between CuCl2·2H2O, LnCl3·6H2O, phenoxH, and NEt3 in a 1:2:2:4 molar ratio, in a solvent mixture comprising MeCN and MeOH, afforded brown crystals of a new family of [Cu3LnCl3(phenox)6(MeOH)3] clusters (Ln = Gd (1), Tb (2), Dy (3)) that possess an unprecedented [Cu3Ln(μ-NO)6]3+ "propeller"-like core. Complexes 1-3 are the first {Cu3Ln} clusters in which the outer CuII and the central LnIII atoms are solely bridged by diatomic oximato bridges. The {Cu-N-O-Ln} bridging units are very distorted with torsion angles spanning the range 35.5-48.9° and 25.2-55.6° in 1 and 2, respectively. As a result, complexes 1-3 are antiferromagnetically coupled, in agreement with previously reported magnetostructural criteria for oximato-bridged Cu/Ln complexes. The magnetic susceptibility data for all complexes were nicely fit to an isotropic spin Hamiltonian (for 1) or a Hamiltonian that accounts for the spin of the CuII atoms, the spin component of the LnIII, the spin-orbit coupling (λ), an axial ligand-field component around the LnIII atoms (Δ), and the Zeeman effect (for the anisotropic 2 and 3). The resulting fit parameters were J = -1.34 cm-1 and g = 2.10 (1), J = -1.42 cm-1, gCu = 2.10, and Δ = -26.3 cm-1 (2), and J = -1.70 cm-1, gCu = 2.05, and Δ = -38.1 cm-1 (3). The reported fitting procedure, implemented in the PHI program, is here used for the first time. Even if this method is only valid in high-symmetry Ln environments, when it is properly used allows a very simple and efficient method to obtain the exchange parameters. In light of the negative anisotropy, compounds 2 and 3 were found to exhibit frequency-dependent tails of out-of-phase signals in the presence of a small external dc field, characteristic of the slow magnetization relaxation of a single-molecule magnet. By using the Kramers-Kronig equations, the effective energy barriers ( Ueff) were derived and reported as Ueff = 10.1 and 5.4 cm-1 for 2 and 3, respectively.
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Affiliation(s)
- Anne Worrell
- Department of Chemistry , 1812 Sir Isaac Brock Way , Brock University , L2S 3A1 St. Catharines , Ontario , Canada
| | - Di Sun
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Julia Mayans
- Departament de Quimica Inorgànica i Orgànica and Institut de Nanociencia i Nanotecnologia (IN2UB) , Universitat de Barcelona , Martí i Franqués 1-11 , 08028 Barcelona , Spain
| | - Christos Lampropoulos
- Department of Chemistry , University of North Florida , 1 UNF Drive , Jacksonville , Florida 32224 , United States
| | - Albert Escuer
- Departament de Quimica Inorgànica i Orgànica and Institut de Nanociencia i Nanotecnologia (IN2UB) , Universitat de Barcelona , Martí i Franqués 1-11 , 08028 Barcelona , Spain
| | - Theocharis C Stamatatos
- Department of Chemistry , 1812 Sir Isaac Brock Way , Brock University , L2S 3A1 St. Catharines , Ontario , Canada
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Feng DD, Dong HM, Liu ZY, Zhao XJ, Yang EC. Three microporous metal-organic frameworks assembled from dodecanuclear {NiLn} subunits: synthesis, structure, gas adsorption and magnetism. Dalton Trans 2018; 47:15344-15352. [PMID: 30280741 DOI: 10.1039/c8dt02816h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Three isostructural heterometallic metal-organic frameworks (MOFs) {[Ln2Ni(OAc)5(HL)(L)]·solvent molecules}n (H2L = 2-hydroxyimino-N-[1-(2-pyrazinyl)ethylidene]-propanohydrazone, Ln = Dy for 1, Tb for 2 and Gd for 3) were solvothermally synthesized by varying rare-earth metal ions with different electron configurations. Their crystal structures, gas adsorption and magnetic behaviors were fully investigated. The three isomorphous MOFs exhibit three-dimensional microporous frameworks with two different orientated dodecane metallic {NiIILnIII(HL)}6 metallomacrocycles alternately connected by {LnIII(L)} connectors, in which an empty one-dimensional channel decorated by the basic hydrazone interior is generated. Due to their LnIII-independent microporous nature, the activated sample of 1 as a representative example has a significant CO2 uptake up to 42.2 cm3 g-1 and an unusually high CO2/N2 and CO2/CH4 adsorption selectivity of up to 98.8 and 16.8 at 298 K and 100 kPa. Magnetically, apparent antiferromagnetic interactions for both 1 and 2 as well as ferromagnetic coupling for 3 are respectively observed at low temperature resulting from the competition of magnetic anisotropy and intermetallic ferromagnetic superexchange. Additionally, 1 with highly anisotropic DyIII spin shows slow magnetization relaxation under zero dc field, whereas 3 possessing isotropic GdIII ions displays a significant cryogenic magnetocaloric effect with a maximum entropy change of 26.6 J kg-1 K-1 at 3.0 K and 70 kOe. These interesting results can provide valuable information on gas separation-based multifunctional 3d-4f MOF materials.
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Affiliation(s)
- Dan-Dan Feng
- 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, Tianjin Normal University, Tianjin 300387, P. R. China.
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22
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Dermitzaki D, Bistola O, Pissas M, Psycharis V, Sanakis Y, Raptopoulou CP. Heptanuclear heterometallic Cu 5 Ln 2 (Ln = Gd, Tb) complexes: Synthesis, crystal structures, and magnetic properties studies. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Dey B, Roy S, Mondal AK, Santra A, Konar S. Zero Field SMM Behavior and Magnetic Refrigeration in Rare Heterometallic Double Stranded Helicates of Cu2
Ln2
(Ln = Dy, Tb, Gd). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijoy Dey
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Subhadip Roy
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Amit Kumar Mondal
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Atanu Santra
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Sanjit Konar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
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24
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Dey A, Das S, Palacios MA, Colacio E, Chandrasekhar V. Single-Molecule Magnet and Magnetothermal Properties of Two-Dimensional Polymers Containing Heterometallic [Cu5
Ln2
] (Ln = GdIII
and DyIII
) Motifs. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701429] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Atanu Dey
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
- Tata Institute of Fundamental Research Hyderabad; 500107 Gopanpally, Hyderabad India
| | - Sourav Das
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
- Department of Chemistry; Institute of Infrastructure Technology Research and Management; Near Khokhara Circle 380026 Maninagar East, Ahmedabad India
| | - María A. Palacios
- Departamento de Química Inorgánica; Facultad de Ciencias; Universidad de Granada; 18071 Granada Spain
| | - Enrique Colacio
- Departamento de Química Inorgánica; Facultad de Ciencias; Universidad de Granada; 18071 Granada Spain
| | - Vadapalli Chandrasekhar
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
- Tata Institute of Fundamental Research Hyderabad; 500107 Gopanpally, Hyderabad India
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25
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Polyzou CD, Koumousi ES, Lada ZG, Raptopoulou CP, Psycharis V, Rouzières M, Tsipis AC, Mathonière C, Clérac R, Perlepes SP. "Switching on" the single-molecule magnet properties within a series of dinuclear cobalt(iii)-dysprosium(iii) 2-pyridyloximate complexes. Dalton Trans 2018; 46:14812-14825. [PMID: 29038805 DOI: 10.1039/c7dt02717f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The use of 2-pyridinealdoxime (paoH), methyl 2-pyridyl ketone oxime (mepaoH), phenyl 2-pyridyl ketone oxime (phpaoH) and pyridine-2-amidoxime (NH2paoH) for the synthesis of dinuclear CoIII/DyIII complexes is described in the absence or presence of an external base. Complexes [CoDy(pao)3(NO3)3] (1), [CoDy(mepao)3(NO3)3] (2), [CoDy(phpao)3(NO3)3] (3) and [CoDy(NH2pao)3(NO3)3]·3MeOH (4·3MeOH) have been isolated and their structures have been determined by single-crystal X-ray crystallography. The complexes crystallize in non-centrosymmetric (2, 3) or centrosymmetric (1, 4·3MeOH) trigonal space groups and form a family of triply-oximate bridged dinuclear Co(iii)-Dy(iii) complexes. The crystals of 1, 3 and 4·3MeOH contain mixtures of Δ and Λ enantiomers, whereas complex 2 is enantiomerically pure (Λ). A 3-fold crystallographic axis (C3) passes through two metal ions in all complexes. The low-spin CoIII and DyIII ions are bridged by three oximate groups belonging to the η1:η1:η1:μ 2-pyridyloximate ligands. The CoIII centre is octahedrally coordinated by the six nitrogen atoms of the deprotonated organic ligands in a facial arrangement. The DyIII centre is bound to an O9 set of donor atoms, its coordination sphere being completed by three bidentate chelating nitrato groups. The coordination polyhedron around DyIII in 1 is best described as the Johnson tricapped trigonal prism, while the coordination geometries of the DyIII centres in 2, 3 and 4·3MeOH are best described as consisting of spherical tricapped trigonal prismatic coordination polyhedra. The spectroscopic data of the complexes are also reported and discussed in the infra-red region in terms of the coordination modes of the ligands involved. The magnetic properties of these complexes were studied between 300 and 1.8 K revealing mainly the depopulation of the DyIIImj sublevels of the ground 6H15/2 state. The intrinsic magnetic anisotropy of the DyIII centers is clearly observed by the non-superimposed magnetization (M) versus H/T data, but single-molecule magnet (SMM) properties were detected only for the mepao--containing complex 2. The origin of these properties in 2 is critically discussed and supported by computational studies.
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Affiliation(s)
- C D Polyzou
- Department of Chemistry, University of Patras, 265 04 Patras, Greece.
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26
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Singh MK, Rajeshkumar T, Kumar R, Singh SK, Rajaraman G. Role of (1,3) {Cu-Cu} Interaction on the Magneto-Caloric Effect of Trinuclear {CuII-GdIII-CuII} Complexes: Combined DFT and Experimental Studies. Inorg Chem 2018; 57:1846-1858. [DOI: 10.1021/acs.inorgchem.7b02775] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mukesh Kumar Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Thayalan Rajeshkumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ravi Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Saurabh Kumar Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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27
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Alexandropoulos DI, Cunha-Silva L, Tang J, Stamatatos TC. Heterometallic Cu/Ln cluster chemistry: ferromagnetically-coupled {Cu4Ln2} complexes exhibiting single-molecule magnetism and magnetocaloric properties. Dalton Trans 2018; 47:11934-11941. [DOI: 10.1039/c8dt01780h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of ferromagnetically-coupled {Cu4Ln2} complexes is reported. The compounds exhibit SMM and magnetocaloric properties.
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Affiliation(s)
| | - Luis Cunha-Silva
- REQUIMTE-LAQV & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - 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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28
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Qin Y, Zhang H, Sun H, Pan Y, Ge Y, Li Y, Zhang YQ. Two Series of Homodinuclear Lanthanide Complexes: Greatly Enhancing Energy Barriers through Tuning Terminal Solvent Ligands in Dy 2 Single-Molecule Magnets. Chem Asian J 2017; 12:2834-2844. [PMID: 28840651 DOI: 10.1002/asia.201701065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/23/2017] [Indexed: 11/10/2022]
Abstract
The utilization of 2-ethoxy-6-{[(2-hydroxy-3-methoxybenzyl)imino]methyl}phenol (H2 L) as a chelating ligand, in combination with the employment of alcohols (EtOH and MeOH) as auxiliary ligands, in 4 f-metal chemistry afforded two series of dinuclear lanthanide complexes of compositions [Ln2 L2 (NO3 )2 (EtOH)2 ] (Ln=Sm (1), Eu (2), Gd (3), Tb (4), Dy (5), Ho (6), Er (7)) and [Ln2 L2 (NO3 )2 (MeOH)2 ] (Ln=Sm (8), Eu (9), Gd (10), Tb (11), Dy (12), Ho (13), Er (14)). The structures of 1-14 were determined by single-crystal X-ray crystallography. Complexes 1-7 are isomorphous. The two lanthanide(III) ions in 1-7 are doubly bridged by two deprotonated aminophenoxide oxygen atoms of two μ2 :η0 :η1 :η2 :η1 :η1 :η0 -L2- ligands. One nitrogen atom, two oxygen atoms of the NO3- anion, two methoxide oxygen atoms of two ligand sets, and one oxygen atom of the terminally coordinated EtOH molecule complete the distorted dodecahedron geometry of each lanthanide(III) ion. Compounds 8-14 are isomorphous and their structures are similar to those of 1-7. The slight difference between 1-7 and 8-14 stems from purposefully replacing the EtOH ligands in 1-7 with MeOH in 8-14. Direct-current magnetic susceptibility studies in the 2-300 K range reveal weak antiferromagnetic interactions for 3, 4, 7, 10, 11, and 14, and ferromagnetic interactions at low temperature for 5, 6, 12, and 13. Complexes 5 and 12 exhibit single-molecule magnet (SMM) behavior with energy barriers of 131.3 K for 5 and 198.8 K for 12. The energy barrier is significantly enhanced by dexterously regulating the terminal ligands. To rationalize the observed difference in the magnetic behavior, complete-active-space self-consistent field (CASSCF) calculations were performed on two Dy2 complexes. Subtle variation in the angle between the magnetic axes and the vector connecting two dysprosium(III) ions results in a weaker influence on the tunneling gap of individual dysprosium(III) ions by the dipolar field in 12. This work proposes an efficient strategy for synthesizing Dy2 SMMs with high energy barriers.
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Affiliation(s)
- Yaru Qin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Haifeng Zhang
- Department of Chemistry and Chemical Engineering, Jining University, Qufu, 273155, P.R. China
| | - Hao Sun
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yangdan Pan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yu Ge
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yahong Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing, 210023, P.R. China
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29
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Alaimo AA, Koumousi ES, Cunha-Silva L, McCormick LJ, Teat SJ, Psycharis V, Raptopoulou CP, Mukherjee S, Li C, Gupta SD, Escuer A, Christou G, Stamatatos TC. Structural Diversities in Heterometallic Mn–Ca Cluster Chemistry from the Use of Salicylhydroxamic Acid: {MnIII4Ca2}, {MnII/III6Ca2}, {MnIII/IV8Ca}, and {MnIII8Ca2} Complexes with Relevance to Both High- and Low-Valent States of the Oxygen-Evolving Complex. Inorg Chem 2017; 56:10760-10774. [DOI: 10.1021/acs.inorgchem.7b01740] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alysha A. Alaimo
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, L2S 3A1 St. Catharines, Ontario, Canada
| | | | - Luís Cunha-Silva
- REQUIMTE-LAQV & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Laura J. McCormick
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Simon J. Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Agia Paraskevi, Attikis, Greece
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Agia Paraskevi, Attikis, Greece
| | - Shreya Mukherjee
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Chaoran Li
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Sayak Das Gupta
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Albert Escuer
- Departament
de Quimica Inorganica and Institut de Nanociencia i Nanotecnologia
(IN2UB), Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Theocharis C. Stamatatos
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, L2S 3A1 St. Catharines, Ontario, Canada
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30
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Sołtys-Brzostek K, Terlecki M, Sokołowski K, Lewiński J. Chemical fixation and conversion of CO2 into cyclic and cage-type metal carbonates. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.10.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Li ZY, Zhang C, Zhai B, Han JC, Pei MC, Zhang JJ, Zhang FL, Li SZ, Cao GX. Linking heterometallic Cu–Ln chain units with a 2-methylenesuccinate bridge to form a 2D network exhibiting a large magnetocaloric effect. CrystEngComm 2017. [DOI: 10.1039/c7ce00356k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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32
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Alexandropoulos DI, Poole KM, Cunha-Silva L, Ahmad Sheikh J, Wernsdorfer W, Christou G, Stamatatos TC. A family of ‘windmill’-like {Cu6Ln12} complexes exhibiting single-molecule magnetism behavior and large magnetic entropy changes. Chem Commun (Camb) 2017; 53:4266-4269. [DOI: 10.1039/c7cc01382e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first octadecanuclear {Cu6Ln12} clusters with a ‘windmill’-like topology have been prepared from a ‘ligand blend’ comprising a pyridyl dioxime chelate and azides.
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Affiliation(s)
| | - Katye M. Poole
- Department of Chemistry
- University of Florida
- Gainesville
- USA
| | - Luis Cunha-Silva
- REQUIMTE-LAQV & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | | | - Wolfgang Wernsdorfer
- Institut Néel
- CNRS & Université Grenoble Alpes
- France
- Physikalisches Institut
- Karlsruhe Institute of Technology (KIT)
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33
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Hołyńska M, Gawryszewska P, Lisowski J. Tetranuclear Eu(III)-Co(II) complex of an N 4 O 4 macrocycle. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.06.025] [Citation(s) in RCA: 2] [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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34
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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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35
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Alexandropoulos DI, Moushi EE, Papatriantafyllopoulou C, Beavers CM, Teat SJ, Tasiopoulos AJ, Christou G, Stamatatos TC. Cyanate groups in higher oxidation state metal cluster chemistry: Mixed-valence (II/III) Mn16 and Mn18 clusters. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Anastasiadis NC, Polyzou CD, Kostakis GE, Bekiari V, Lan Y, Perlepes SP, Konidaris KF, Powell AK. Dinuclear lanthanide(III)/zinc(II) complexes with methyl 2-pyridyl ketone oxime. Dalton Trans 2016; 44:19791-5. [PMID: 26537457 DOI: 10.1039/c5dt03663a] [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
The first use of methyl 2-pyridyl ketone oxime (mpkoH) in zinc(II)/lanthanide(III) chemistry leads to the [ZnLn(mpko)3(mpkoH)3](ClO4)2 and [ZnLn(NO3)2(mpko)3(mpkoH)] families of dinuclear Zn(II)Ln(III) complexes displaying blue-green, ligand-based photoluminescence; the Zn(II)Dy(III) compound shows field-induced relaxation of magnetization.
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Affiliation(s)
- Nikolaos C Anastasiadis
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. and Department of Chemistry, University of Patras, GR-265 04 Patras, Greece
| | - Christina D Polyzou
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. and Department of Chemistry, University of Patras, GR-265 04 Patras, Greece
| | - George E Kostakis
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. and Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, UK
| | - Vlasoula Bekiari
- Department of Aquaculture, Technological Educational Institute of Western Greece, GR-30200 Messolonghi, Greece
| | - Yanhua Lan
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131 Karlsruhe, Germany.
| | - Spyros P Perlepes
- Department of Chemistry, University of Patras, GR-265 04 Patras, Greece
| | - Konstantis F Konidaris
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Annie K Powell
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. and Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131 Karlsruhe, Germany.
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37
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Song XQ, Liu PP, Liu YA, Zhou JJ, Wang XL. Two dodecanuclear heterometallic [Zn6Ln6] clusters constructed by a multidentate salicylamide salen-like ligand: synthesis, structure, luminescence and magnetic properties. Dalton Trans 2016; 45:8154-63. [DOI: 10.1039/c6dt00212a] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We present herein two dodecanuclear heterometallic [Zn6Ln6] clusters with interesting structures, luminescence and magnetic properties.
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Affiliation(s)
- Xue-Qin Song
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- China
| | - Pan-Pan Liu
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- China
| | - Yuan-Ang Liu
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- China
| | - Jing-Jing Zhou
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- China
| | - Xiao-Long Wang
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- China
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38
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Guarda E, Bader K, van Slageren J, Alborés P. {NiII8LnIII6} (Ln = Gd, Dy) rod-like nano-sized heteronuclear coordination clusters with a double carbonate bridge skeleton and remarkable MCE behaviour. Dalton Trans 2016; 45:8566-72. [DOI: 10.1039/c6dt00859c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We prepared through CO2 air fixation novel Ni8Ln6 complexes showing a remarkable μ5-carbonate bridged octanuclear planar {Ni4Ln4} core and unusual MCE behaviour.
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Affiliation(s)
- Eliana Guarda
- Departamento de Química Inorgánica
- Analítica y Química Física/INQUIMAE (CONICET)
- Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires
- C1428EHA Buenos Aires
- Argentina
| | - Katharina Bader
- Institut für Physikalische Chemie
- Universität Stuttgart
- Stuttgart
- Germany
| | | | - Pablo Alborés
- Departamento de Química Inorgánica
- Analítica y Química Física/INQUIMAE (CONICET)
- Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires
- C1428EHA Buenos Aires
- Argentina
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39
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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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40
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Blacque O, Amjad A, Caneschi A, Sorace L, Car PE. Synthesis, structure, magnetic and magnetocaloric properties of a series of {CrIII4LnIII} complexes. NEW J CHEM 2016. [DOI: 10.1039/c6nj00136j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Magnetic properties and magnetocaloric effect of rare heterometallic Cr(iii)–Ln(iii) complexes are reported.
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Affiliation(s)
- Olivier Blacque
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - Asma Amjad
- Dipartimento di Chimica Ugo Schiff & UdR INSTM
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Andrea Caneschi
- Dipartimento di Chimica Ugo Schiff & UdR INSTM
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
| | - Lorenzo Sorace
- Dipartimento di Chimica Ugo Schiff & UdR INSTM
- Università degli Studi di Firenze
- 50019 Sesto Fiorentino
- Italy
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41
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Zhang L, Zhao L, Zhang P, Wang C, Yuan SW, Tang J. Nanoscale {LnIII24ZnII6} Triangular Metalloring with Magnetic Refrigerant, Slow Magnetic Relaxation, and Fluorescent Properties. Inorg Chem 2015; 54:11535-41. [DOI: 10.1021/acs.inorgchem.5b02215] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li Zhang
- State Key Laboratory
of Rare Earth Resource Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lang Zhao
- State Key Laboratory
of Rare Earth Resource Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Peng Zhang
- State Key Laboratory
of Rare Earth Resource Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, 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
| | - Sen-Wen Yuan
- State Key Laboratory
of Rare Earth Resource Utilization, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, 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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42
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Wang X, Li C, Sun J, Li L. Nitronyl nitroxide based 2p-3d-4f chains with the magnetocaloric effect and slow magnetic relaxation. Dalton Trans 2015; 44:18411-7. [PMID: 26434633 DOI: 10.1039/c5dt02783g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four new nitronyl nitroxide radical based hetero-tri-spin one-dimensional compounds, namely [{Ln(hfac)3}3{Cu(hfac)2}{NIT-Ph(OMe)2}4]n (Ln = Gd (1), Tb (2), Dy (3), Er (4); hfac = hexafluoroacetylacetonate; NIT-Ph(OMe)2 = 2-(2',4'-dimethoxyphenyl)-4,4,5,5-tetramethyl-imidazolyl-1-oxyl-3-oxide) have been successfully prepared. Single crystal X-ray crystallographic analysis reveals that complexes 1-4 possess a 1D chain structure with a repeating [Cu-Rad-Ln-Rad-Ln-Rad-Ln-Rad] moiety in which Ln(hfac)3 and Cu(hfac)2 units are bridged by nitronyl nitroxide radicals through the NO groups. DC magnetic studies found that ferromagnetic interactions between metals and the coordinated NO groups are active in all four compounds. The Tb derivative displays frequency dependent ac magnetic susceptibilities, indicating slow magnetic relaxation behavior. The Gd complex shows an important cryogenic magnetocaloric effect with the entropy change (-ΔSm) of 13.5 J kg(-1) K(-1) at 2 K and a magnetic field of 7 T, representing the first example of Gd-radical molecular species exhibiting the magnetocaloric effect.
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Affiliation(s)
- Xiufeng Wang
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China.
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43
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Dermitzaki D, Raptopoulou CP, Psycharis V, Escuer A, Perlepes SP, Stamatatos TC. Nonemployed Simple Carboxylate Ions in Well-Investigated Areas of Heterometallic Carboxylate Cluster Chemistry: A New Family of {CuII4LnIII8} Complexes Bearing tert-Butylacetate Bridging Ligands. Inorg Chem 2015. [DOI: 10.1021/acs.inorgchem.5b01179] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi, Attikis, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi, Attikis, Greece
| | - Albert Escuer
- Departament
de Quimica Inorganica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
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44
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Kuang WW, Zhu LL, Li LC, Yang PP. Synthesis, Crystal Structure, and Magnetic Properties of a Family of Undecanuclear [CuII9LnIII2] Nanoclusters. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500064] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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Scheurer A, Korzekwa J, Nakajima T, Hampel F, Buling A, Derks C, Neumann M, Joly L, Petukhov K, Gieb K, Müller P, Kuepper K, Meyer K. Synthesis, Magnetic Properties, and X-ray Spectroscopy of Divalent Cobalt(II) and Nickel(II) Cubanes [MII4(HL2)4(OAc)4]. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201402988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Rajeshkumar T, Annadata HV, Evangelisti M, Langley SK, Chilton NF, Murray KS, Rajaraman G. Theoretical Studies on Polynuclear {CuII5GdIIIn} Clusters (n = 4, 2): Towards Understanding Their Large Magnetocaloric Effect. Inorg Chem 2015; 54:1661-70. [DOI: 10.1021/ic502651w] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Thayalan Rajeshkumar
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumabi 400076, India
| | - Harshini V. Annadata
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumabi 400076, India
| | - Marco Evangelisti
- Instituto de Ciencia
de Materiales de Aragón and Departamento de Física de
la Materia Condensada, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Stuart K. Langley
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Nicholas F. Chilton
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- School of Chemistry, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Keith S. Murray
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Gopalan Rajaraman
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumabi 400076, India
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47
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Polyzou CD, Baniodeh A, Magnani N, Mereacre V, Zill N, Anson CE, Perlepes SP, Powell AK. Squashed {Fe2IIIM4III} octahedra (M = Y, Gd, Dy) from the first use of the cyanoacetate ligand in 3d/4f coordination chemistry. RSC Adv 2015. [DOI: 10.1039/c4ra15458d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The first use of the cyanoacetate ligand in 3d/4f-metal chemistry leads to {Fe2IIIM4III} (M = Dy, Gd, Y) coordination clusters with a squashed octahedral core structure; the DyIII compound exhibits slow relaxation of the magnetisation.
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Affiliation(s)
- Christina D. Polyzou
- Department of Chemistry
- University of Patras
- 26504 Patras, Greece
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
| | - Amer Baniodeh
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe, Germany
- Institute of Nanotechnology
- Karlsruhe Institute of Technology
| | - Nicola Magnani
- Institute of Nanotechnology
- Karlsruhe Institute of Technology
- 76344 Eggenstein-Leopoldshafen, Germany
| | - Valeriu Mereacre
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe, Germany
| | - Nicolas Zill
- Institute of Nanotechnology
- Karlsruhe Institute of Technology
- 76344 Eggenstein-Leopoldshafen, 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
- Karlsruhe Institute of Technology
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48
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Li H, Shi W, Niu Z, Zhou JM, Xiong G, Li LL, Cheng P. Remarkable LnIII3FeIII2 clusters with magnetocaloric effect and slow magnetic relaxation. Dalton Trans 2015; 44:468-71. [DOI: 10.1039/c4dt02871f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two 3d–4f clusters were reported: Gd3Fe2 possesses significant magnetic entropy change and slow magnetic relaxation is observed in Dy3Fe2.
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Affiliation(s)
- Han Li
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Wei Shi
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Zheng Niu
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Jing-Min Zhou
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Gang Xiong
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Lei-Lei Li
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Peng Cheng
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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49
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Liu JL, Chen YC, Guo FS, Tong ML. Recent advances in the design of magnetic molecules for use as cryogenic magnetic coolants. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.08.013] [Citation(s) in RCA: 249] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Alexandropoulos DI, Cunha-Silva L, Pham L, Bekiari V, Christou G, Stamatatos TC. Tetranuclear Lanthanide(III) Complexes with a Zigzag Topology from the Use of Pyridine-2,6-dimethanol: Synthetic, Structural, Spectroscopic, Magnetic and Photoluminescence Studies. Inorg Chem 2014; 53:3220-9. [DOI: 10.1021/ic5001045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Luís Cunha-Silva
- REQUIMTE & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Linh Pham
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Vlasoula Bekiari
- Department of Aquaculture and Fisheries Management, Technological Educational Institute of Western Greece, 30 200 Messolonghi, Greece
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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