1
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Cutler DJ, Coletta M, Singh MK, Canaj AB, McCormick LJ, Coles SJ, Schnack J, Brechin EK. An [Fe III8] molecular oxyhydroxide. Dalton Trans 2022; 51:8945-8948. [PMID: 35611692 DOI: 10.1039/d2dt01477g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An [FeIII8] hexagonal bipyramid displays antiferromagnetic exchange between the two capping tetrahedral ions and the six ring octahedral ions resulting in a spin ground state of S = 10.
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Affiliation(s)
- Daniel J Cutler
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland, UK.
| | - Marco Coletta
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland, UK.
| | - Mukesh K Singh
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland, UK.
| | - Angelos B Canaj
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland, UK.
| | - Laura J McCormick
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Simon J Coles
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Jürgen Schnack
- Universitat Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany.
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, Scotland, UK.
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2
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Magneto-thermal and magnetization relaxation dynamics of a family of di-nuclear lanthanide complexes. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Dearle AE, Cutler DJ, Coletta M, Lee E, Dey S, Sanz S, Fraser HWL, Nichol GS, Rajaraman G, Schnack J, Cronin L, Brechin EK. An [FeIII30] molecular metal oxide. Chem Commun (Camb) 2021; 58:52-55. [PMID: 34807967 DOI: 10.1039/d1cc06224g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dissolution of FeBr3 in a mixture of acetonitrile and 3,4-lutidine in the presence of an amine results in the formation of an [Fe30] molecular metal oxide containing alternating layers of tetrahedral and octahedral FeIII ions. Mass spectrometry suggests the cluster is formed quickly and remains stable in solution, while magnetic measurements and DFT calculations reveal competing antiferromagnetic exchange interactions.
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Affiliation(s)
- Alice E Dearle
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Daniel J Cutler
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Marco Coletta
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Edward Lee
- WestCHEM School of Chemistry, The University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | - Sourav Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Sergio Sanz
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Hector W L Fraser
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Gary S Nichol
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Jürgen Schnack
- Fakultät für Physik, Universitat Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany.
| | - Leroy Cronin
- WestCHEM School of Chemistry, The University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
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4
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Wen W, Meng YS, Jiao CQ, Liu Q, Zhu HL, Li YM, Oshio H, Liu T. Ferromagnetic Archimedean polyhedra {Fe 24M 18} (M = Fe, Ni, and Mn) with tunable electron configurations. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00593f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three symmetric nanocages {Fe24M18} that mimic the Archimedean polyhedra, namely pseudo-rhombicuboctahedron, were synthesized. Their electron configurations depend highly on the changes of metal ions and the deprotonation of auxiliary ligands.
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Affiliation(s)
- Wen Wen
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Yin-Shan Meng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Cheng-Qi Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Qiang Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Hai-Lang Zhu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Ya-Ming Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Hiroki Oshio
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
| | - Tao Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., Dalian, 116024, China
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5
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Szałowski K. Low-Temperature Magnetocaloric Properties of V12 Polyoxovanadate Molecular Magnet: A Theoretical Study. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4399. [PMID: 33023171 PMCID: PMC7579335 DOI: 10.3390/ma13194399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/16/2020] [Accepted: 09/28/2020] [Indexed: 11/30/2022]
Abstract
The paper presents a computational study of the magnetocaloric properties of the V12 polyoxovanadate molecular magnet. The description is restricted to low-temperature range (below approximately 100 K), where the magnetic properties of the system in question can be sufficiently modelled by considering a tetramer that consists of four vanadium ions with spins S=1/2. The discussion is focused on the magnetocaloric effect in the cryogenic range. The exact and numerical diagonalization of the corresponding Hamiltonian is used in order to construct the thermodynamic description within a version of the canonical ensemble. The thermodynamic quantities of interest, such as magnetic entropy, specific heat, entropy change under isothermal magnetization/demagnetization, temperature change under adiabatic magnetization/demagnetization, refrigerant capacity, and magnetic Grüneisen ratio, are calculated and discussed extensively. The importance of two quantum level crossings for the described properties is emphasized. The significant ranges of direct and inverse magnetocaloric effect are predicted. In particular, the maximized inverse magnetocaloric response is found for cryogenic temperatures.
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Affiliation(s)
- Karol Szałowski
- Department of Solid State Physics, Faculty of Physics and Applied Informatics, University of ódź, ulica Pomorska 149/153, PL90-236 Łódź, Poland
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6
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Shiga T, Okawa N, Oshio H. A triple-triangle cluster derived from a simple tridentate ligand. Dalton Trans 2019; 48:17437-17440. [PMID: 31686072 DOI: 10.1039/c9dt03232k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The heptanuclear ferric cluster, [FeIII7(O)6(HL)5(H2L)(H2O)8](BF4)4 (H2L = 2,6-bis(1,5-diphenyl-1H-pyrazol-3-yl)pyridine), was synthesized by the reaction of the planar tridentate ligand H2L with iron(ii) tetrafluoroborate hexahydrate. The cluster has a corner-shared triple-triangle core structure connected by three μ-O atoms, and it has a spin-frustrated ferrimagnetic spin ground state of S = 19/2.
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Affiliation(s)
- Takuya Shiga
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
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7
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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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8
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Wu JW, Wang X, Tian CB, Du SW. A new approach to fabricate the Mn(ii)-based magnetic refrigerant through incorporation of a diamagnetic {LiO 4} spacer. Dalton Trans 2018; 47:2143-2147. [PMID: 29372734 DOI: 10.1039/c7dt04820c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 3D MOF [MnLi2(ip)2(H2O)2] (1) with a 1D heterometallic inorganic Mn(ii)-Li(i) chain is reported. With the assistance of diamagnetic {LiO4} connectors, which separate the paramagnetic Mn(ii) ions and act as magnetic spacers, very weak magnetic interactions were obtained. Remarkably, 1 showed a significant magnetocaloric effect (MCE) with a large entropy change value of 30.4 J kg-1 K-1 for ΔH = 8 T at 2 K.
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Affiliation(s)
- Jia-Wei Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou 350002, P. R. China.
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9
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Rasamsetty A, Das C, Sañudo EC, Shanmugam M, Baskar V. Effect of coordination geometry on the magnetic properties of a series of Ln2 and Ln4 hydroxo clusters. Dalton Trans 2018; 47:1726-1738. [DOI: 10.1039/c7dt00172j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tetra and di-nuclear Lanthanide hydroxo clusters have been synthesized and characterized magnetically.
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Affiliation(s)
| | - Chinmoy Das
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - E. Carolina Sañudo
- Departament de Química Inorgànica i Institut de Nanociència i Nanotecnologia
- Universitat de Barcelona
- Barcelona
- Spain
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10
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Chow CY, Guillot R, Rivière E, Kampf JW, Mallah T, Pecoraro VL. Synthesis and Magnetic Characterization of Fe(III)-Based 9-Metallacrown-3 Complexes Which Exhibit Magnetorefrigerant Properties. Inorg Chem 2016; 55:10238-10247. [DOI: 10.1021/acs.inorgchem.6b01404] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Chun Y. Chow
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Régis Guillot
- Institut de Chemie Moléculaire et
des Matériaux d’Orsay, CNRS, Université de Paris Sud 11, 91405 Orsay Cedex, France
| | - Eric Rivière
- Institut de Chemie Moléculaire et
des Matériaux d’Orsay, CNRS, Université de Paris Sud 11, 91405 Orsay Cedex, France
| | - Jeff W. Kampf
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Talal Mallah
- Institut de Chemie Moléculaire et
des Matériaux d’Orsay, CNRS, Université de Paris Sud 11, 91405 Orsay Cedex, France
| | - Vincent L. Pecoraro
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
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11
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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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12
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Das C, Vaidya S, Gupta T, Frost JM, Righi M, Brechin EK, Affronte M, Rajaraman G, Shanmugam M. Single-Molecule Magnetism, Enhanced Magnetocaloric Effect, and Toroidal Magnetic Moments in a Family of Ln4Squares. Chemistry 2015; 21:15639-50. [DOI: 10.1002/chem.201502720] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 02/03/2023]
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13
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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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14
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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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15
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Evangelisti M. Molecule-Based Magnetic Coolers: Measurement, Design and Application. NANOSCIENCE AND TECHNOLOGY 2014. [DOI: 10.1007/978-3-642-40609-6_14] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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