1
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Sarkar S, Shah Tuglak Khan F, Guchhait T, Rath SP. Binuclear complexes with single M-F-M bridge (M: Fe, Mn, and Cu): A critical analysis of the impact of fluoride for isoelectronic hydroxide substitution. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.215003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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2
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Pham L, Cao TS, Abboud KA, Christou G. New family of Ln9Mn4 (Ln = Gd, Tb, Dy) and Y9Mn4 clusters from the use of methyl-2-pyridyl-ketone oxime in heterometallic Mn chemistry. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Stoumpos CC, Danelli P, Zahariou G, Pissas M, Psycharis V, Raptopoulou CP, Sanakis Y, Perlepes SP. Di-2-pyridyl ketone-based ligands as evergreen “trees” in the “forest” of manganese chemistry: Mononuclear Mn(III) complexes from the use of MnF3. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Rajeshkumar T, Jose R, Rajaraman G. Magnetic coupling in oximato bridged {MnIII6} clusters bridged by diamagnetic dicyano-metallato linkers: A theoretical perspective. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Wang HS, Zhang K, Song Y, Pan ZQ. Recent advances in 3d-4f magnetic complexes with several types of non-carboxylate organic ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120318] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Unusual Mn5 cluster with a ‘twisted bow-tie’ topology and MnIIMnIII2MnIV2 oxidation states: Synthesis, structure, and magnetic properties. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Bhattacharya S, Basu U, Haouas M, Su P, Espenship MF, Wang F, Solé‐Daura A, Taffa DH, Wark M, Poblet JM, Laskin J, Cadot E, Kortz U. Discovery and Supramolecular Interactions of Neutral Palladium-Oxo Clusters Pd 16 and Pd 24. Angew Chem Int Ed Engl 2021; 60:3632-3639. [PMID: 33104280 PMCID: PMC7898824 DOI: 10.1002/anie.202010690] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/23/2020] [Indexed: 01/27/2023]
Abstract
We report on the synthesis, structure, and physicochemical characterization of the first three examples of neutral palladium-oxo clusters (POCs). The 16-palladium(II)-oxo cluster [Pd16 O24 (OH)8 ((CH3 )2 As)8 ] (Pd16 ) comprises a cyclic palladium-oxo unit capped by eight dimethylarsinate groups. The chloro-derivative [Pd16 Na2 O26 (OH)3 Cl3 ((CH3 )2 As)8 ] (Pd16 Cl) was also prepared, which forms a highly stable 3D supramolecular lattice via strong intermolecular interactions. The 24-palladium(II)-oxo cluster [Pd24 O44 (OH)8 ((CH3 )2 As)16 ] (Pd24 ) can be considered as a bicapped derivative of Pd16 with a tetra-palladium-oxo unit grafted on either side. The three compounds were fully characterized 1) in the solid state by single-crystal and powder XRD, IR, TGA, and solid-state 1 H and 13 C NMR spectroscopy, 2) in solution by 1 H, 13 C NMR and 1 H DOSY spectroscopic methods, and 3) in the gas phase by electrospray ionization mass spectrometry (ESI-MS).
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Affiliation(s)
- Saurav Bhattacharya
- Department of Life Sciences and ChemistryJacobs UniversityCampus Ring 128759BremenGermany
| | - Uttara Basu
- Department of Life Sciences and ChemistryJacobs UniversityCampus Ring 128759BremenGermany
| | - Mohamed Haouas
- Institut Lavoisier de VersaillesCNRS, UVSQUniversité Paris-SaclayVersaillesFrance
| | - Pei Su
- Department of ChemistryPurdue University560 Oval DriveWest LafayetteIN47907USA
| | | | - Fei Wang
- Departament de Química Física i InorgànicaUniversitat Rovira i Virgili, Marcel lí Domingo 143007TarragonaSpain
| | - Albert Solé‐Daura
- Departament de Química Física i InorgànicaUniversitat Rovira i Virgili, Marcel lí Domingo 143007TarragonaSpain
| | - Dereje H. Taffa
- Institute of ChemistryCarl von Ossietzky University Oldenburg26129OldenburgGermany
| | - Michael Wark
- Institute of ChemistryCarl von Ossietzky University Oldenburg26129OldenburgGermany
| | - Josep M. Poblet
- Departament de Química Física i InorgànicaUniversitat Rovira i Virgili, Marcel lí Domingo 143007TarragonaSpain
| | - Julia Laskin
- Department of ChemistryPurdue University560 Oval DriveWest LafayetteIN47907USA
| | - Emmanuel Cadot
- Institut Lavoisier de VersaillesCNRS, UVSQUniversité Paris-SaclayVersaillesFrance
| | - Ulrich Kortz
- Department of Life Sciences and ChemistryJacobs UniversityCampus Ring 128759BremenGermany
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8
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Bhattacharya S, Basu U, Haouas M, Su P, Espenship MF, Wang F, Solé‐Daura A, Taffa DH, Wark M, Poblet JM, Laskin J, Cadot E, Kortz U. Discovery and Supramolecular Interactions of Neutral Palladium‐Oxo Clusters Pd
16
and Pd
24. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010690] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Saurav Bhattacharya
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Uttara Basu
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Mohamed Haouas
- Institut Lavoisier de Versailles CNRS, UVSQ Université Paris-Saclay Versailles France
| | - Pei Su
- Department of Chemistry Purdue University 560 Oval Drive West Lafayette IN 47907 USA
| | | | - Fei Wang
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili, Marcel lí Domingo 1 43007 Tarragona Spain
| | - Albert Solé‐Daura
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili, Marcel lí Domingo 1 43007 Tarragona Spain
| | - Dereje H. Taffa
- Institute of Chemistry Carl von Ossietzky University Oldenburg 26129 Oldenburg Germany
| | - Michael Wark
- Institute of Chemistry Carl von Ossietzky University Oldenburg 26129 Oldenburg Germany
| | - Josep M. Poblet
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili, Marcel lí Domingo 1 43007 Tarragona Spain
| | - Julia Laskin
- Department of Chemistry Purdue University 560 Oval Drive West Lafayette IN 47907 USA
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles CNRS, UVSQ Université Paris-Saclay Versailles France
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
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9
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Tandon S, Venkatesan M, Schmitt W, Watson GW. Altering the nature of coupling by changing the oxidation state in a {Mn 6} cage. Dalton Trans 2020; 49:8086-8095. [PMID: 32458901 DOI: 10.1039/d0dt01404d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polynuclear transition metal complexes have continuously attracted interest owing to their peculiar electronic and magnetic properties which are influenced by the symmetry and connectivity of the metal centres. Understanding the full electronic picture in such cases often becomes difficult owing to the presence of multiple bridges between metal centres. We have investigated the electronic structure of a {Mn6} cage complex using computational and experimental approaches with the aim to understand the coupling between the manganese centres. The nature of the various coupling pathways has been determined using a novel methodology that involves perturbing the system while retaining the symmetry and analysing the effect on the coupling strength due to the perturbation. Furthermore, we have investigated the magnetic properties of this complex in higher oxidation states which reveals a switch in the nature of coupling from antiferromagnetic to ferromagnetic in addition to stabilisation of intermediate spin states.
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Affiliation(s)
- Swetanshu Tandon
- School of Chemistry & CRANN Institute, University of Dublin, Trinity College, Dublin 2, Ireland.
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10
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Loukopoulos E, Kostakis GE. Recent advances in the coordination chemistry of benzotriazole-based ligands. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Yang M, Xie S, Liang X, Zhang Y, Dong W. A novel functional nitronyl nitroxide and its manganese and cobalt complexes: Synthesis, structures and magnetic properties. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Prša K, Waldmann O. Inelastic Neutron Scattering Intensities of Ferromagnetic Cluster Spin Waves. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Krunoslav Prša
- Physikalisches Institut Universität Freiburg 79104 Freiburg Germany
| | - Oliver Waldmann
- Physikalisches Institut Universität Freiburg 79104 Freiburg Germany
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13
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Maniaki D, Pilichos E, Perlepes SP. Coordination Clusters of 3d-Metals That Behave as Single-Molecule Magnets (SMMs): Synthetic Routes and Strategies. Front Chem 2018; 6:461. [PMID: 30356793 PMCID: PMC6190736 DOI: 10.3389/fchem.2018.00461] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/14/2018] [Indexed: 11/18/2022] Open
Abstract
The area of 3d-metal coordination clusters that behave as Single-Molecule Magnets (SMMs) is now quite mature within the interdisciplinary field of Molecular Magnetism. This area has created a renaissance in Inorganic Chemistry. From the synthetic Inorganic Chemistry viewpoint, the early years of "try and see" exercises (1993-2000) have been followed by the development of strategies and strict approaches. Our review will first summarize the early synthetic efforts and routes for the preparation of polynuclear 3d-metal SMMs, and it will be then concentrated on the description of the existing strategies. The former involve the combination of appropriate 3d-metal-containing starting materials (simple salts with inorganic anions, metal cardoxylates, and pre-formed carboxylate clusters, metal phosphonates) and one or two primary organic ligands; the importance of the end-on azido group as a ferromagnetic coupler in 3d-metal SMM chemistry will be discussed. The utility of comproportionation reactions and the reductive aggregation route for the construction of manganese SMMs will also be described. Most of the existing strategies for the synthesis of SMMs concern manganese. These involve substitution of carboxylate ligands in pre-formed SMMs by other carboxylate or non-carboxylate groups, reduction procedures for the {Mn 8 III Mn 4 IV } SMMs, spin "tweaking," "switching on" SMM properties upon conversion of low-spin clusters into high-spin ones, ground-state spin switching and enhancing SMM properties via targeted structural distortions, the use of radical bridging ligands and supramolecular approaches. A very useful strategy is also the "switching on" of SMM behavior through replacement of bridging hydroxide groups by end-on azido or isocyanato ligands in clusters. Selected examples will be mentioned and critically discussed. Particular emphasis will be given on the criteria for the choice of ligands.
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14
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Homometallic {Mn10} and heterometallic {Mn6Ca4} supertetrahedra exhibiting an unprecedented {MnIII9MnII} oxidation state level and heterometal ions distribution. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.05.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Gupta T, Rajaraman G. Modelling spin Hamiltonian parameters of molecular nanomagnets. Chem Commun (Camb) 2018; 52:8972-9008. [PMID: 27366794 DOI: 10.1039/c6cc01251e] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular nanomagnets encompass a wide range of coordination complexes possessing several potential applications. A formidable challenge in realizing these potential applications lies in controlling the magnetic properties of these clusters. Microscopic spin Hamiltonian (SH) parameters describe the magnetic properties of these clusters, and viable ways to control these SH parameters are highly desirable. Computational tools play a proactive role in this area, where SH parameters such as isotropic exchange interaction (J), anisotropic exchange interaction (Jx, Jy, Jz), double exchange interaction (B), zero-field splitting parameters (D, E) and g-tensors can be computed reliably using X-ray structures. In this feature article, we have attempted to provide a holistic view of the modelling of these SH parameters of molecular magnets. The determination of J includes various class of molecules, from di- and polynuclear Mn complexes to the {3d-Gd}, {Gd-Gd} and {Gd-2p} class of complexes. The estimation of anisotropic exchange coupling includes the exchange between an isotropic metal ion and an orbitally degenerate 3d/4d/5d metal ion. The double-exchange section contains some illustrative examples of mixed valance systems, and the section on the estimation of zfs parameters covers some mononuclear transition metal complexes possessing very large axial zfs parameters. The section on the computation of g-anisotropy exclusively covers studies on mononuclear Dy(III) and Er(III) single-ion magnets. The examples depicted in this article clearly illustrate that computational tools not only aid in interpreting and rationalizing the observed magnetic properties but possess the potential to predict new generation MNMs.
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Affiliation(s)
- Tulika Gupta
- Department of Chemistry, IIT Powai, Mumbai-400076, India.
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16
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Haiduc I. Inverse coordination – An emerging new chemical concept. Oxygen and other chalcogens as coordination centers. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.02.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Lannes A, Suffren Y, Tommasino JB, Chiriac R, Toche F, Khrouz L, Molton F, Duboc C, Kieffer I, Hazemann JL, Reber C, Hauser A, Luneau D. Room Temperature Magnetic Switchability Assisted by Hysteretic Valence Tautomerism in a Layered Two-Dimensional Manganese-Radical Coordination Framework. J Am Chem Soc 2016; 138:16493-16501. [DOI: 10.1021/jacs.6b10544] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Anthony Lannes
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Yan Suffren
- Département
de Chimie Physique, Université de Genève, 30 Quai
Ernest-Ansermet, 1211 Genève 4, Switzerland
| | - Jean Bernard Tommasino
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Rodica Chiriac
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - François Toche
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire
de Chimie, F69342, Lyon, France
| | - Florian Molton
- Département de Chimie
Moléculaire (UMR 5250), Université Joseph Fourier, Grenoble, France
| | - Carole Duboc
- Département de Chimie
Moléculaire (UMR 5250), Université Joseph Fourier, Grenoble, France
| | - Isabelle Kieffer
- BM30B/FAME Beamline, European Synchrotron for Research Facility (ESRF), Grenoble, France
- Observatoire des Sciences de l’Univers
de Grenoble (OSUG), CNRS UMS 832, 414
rue de la piscine, 38400 Saint Martin d’Hères, France
| | - Jean-Louis Hazemann
- BM30B/FAME Beamline, European Synchrotron for Research Facility (ESRF), Grenoble, France
- Institut
Néel, UPR 2940 CNRS, Grenoble, France
| | - Christian Reber
- Département de Chimie, Université de Montréal, Montréal, Canada
| | - Andreas Hauser
- Département
de Chimie Physique, Université de Genève, 30 Quai
Ernest-Ansermet, 1211 Genève 4, Switzerland
| | - Dominique Luneau
- Univ Lyon, Université
Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces,
UMR CNRS 5615, F-69622, Villeurbanne, France
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18
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Houton E, Kelly B, Sanz S, McInnes EJL, Collison D, Brechin EK, Barra A, Ryder AG, Jones LF. A Facile Synthetic Route to a Family of Mn
III
Monomers and Their Structural, Magnetic and Spectroscopic Studies. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Edel Houton
- School of Chemistry NUI Galway University Road Galway Ireland
| | - Brian Kelly
- School of Chemistry NUI Galway University Road Galway Ireland
| | - Sergio Sanz
- EaStCHEM School of Chemistry University of Edinburgh David Brewster Road Edinburgh Scotland
| | - Eric J. L. McInnes
- School of Chemistry University of Manchester Oxford Road Manchester England UK
| | - David Collison
- School of Chemistry University of Manchester Oxford Road Manchester England UK
| | - Euan K. Brechin
- EaStCHEM School of Chemistry University of Edinburgh David Brewster Road Edinburgh Scotland
| | - Anne‐Laure Barra
- LNCMI‐CNRS Université Grenoble‐Alpes Avenue des Martyrs Grenoble France
| | - Alan G. Ryder
- School of Chemistry NUI Galway University Road Galway Ireland
| | - Leigh F. Jones
- School of Chemistry NUI Galway University Road Galway Ireland
- School of Chemistry Bangor University Alun Roberts Building, Deiniol Road Bangor Wales UK
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19
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Vinslava A, Tasiopoulos AJ, Wernsdorfer W, Abboud KA, Christou G. Molecules at the Quantum-Classical Nanoparticle Interface: Giant Mn70 Single-Molecule Magnets of ∼4 nm Diameter. Inorg Chem 2016; 55:3419-30. [PMID: 26859234 DOI: 10.1021/acs.inorgchem.5b02790] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two Mn70 torus-like molecules have been obtained from the alcoholysis in EtOH and 2-ClC2H4OH of [Mn12O12(O2CMe)16(H2O)4]·4H2O·2MeCO2H (1) in the presence of NBu(n)4MnO4 and an excess of MeCO2H. The reaction in EtOH afforded [Mn70O60(O2CMe)70(OEt)20(EtOH)16(H2O)22] (2), whereas the reaction in ClC2H4OH gave [Mn70O60(O2CMe)70(OC2H4Cl)20(ClC2H4OH)18(H2O)22] (3). The complexes are nearly isostructural, each possessing a Mn70 torus structure consisting of alternating near-linear [Mn3(μ3-O)4] and cubic [Mn4(μ3-O)2(μ3-OR)2] (R = OEt, 2; R = OC2H4Cl, 3) subunits, linked together via syn,syn-μ-bridging MeCO2(-) and μ3-bridging O(2-) groups. 2 and 3 have an overall diameter of ∼4 nm and crystallize as highly ordered supramolecular nanotubes. Alternating current (ac) magnetic susceptibility measurements, performed on microcrystalline samples in the 1.8-10 K range and a 3.5 G ac field with oscillation frequencies in the 5-1500 Hz range, revealed frequency-dependent out-of-phase signals below ∼2.4 K for both molecules indicative of the slow magnetization relaxation of single-molecule magnets (SMMs). Single-crystal, magnetization vs field studies on both complexes revealed hysteresis loops below 1.5 K, thus confirming 2 and 3 to be new SMMs. The hysteresis loops do not show the steps that are characteristic of quantum tunneling of magnetization (QTM). However, low-temperature studies revealed temperature-independent relaxation rates below ∼0.2 K for both compounds, the signature of ground state QTM. Fitting of relaxation data to the Arrhenius equation gave effective barriers for magnetization reversal (Ueff) of 23 and 18 K for 2 and 3, respectively. Because the Mn70 molecule is close to the classical limit, it was also studied using a method based on the Néel-Brown model of thermally activated magnetization reversal in a classical single-domain magnetic nanoparticle. The field and sweep-rate dependence of the coercive field was investigated and yielded the energy barrier, the spin, the Arrhenius pre-exponential, and the cross-over temperature from the classical to the quantum regime. The validity of this approach emphasizes that large SMMs can be considered as being at or near the quantum-classical nanoparticle interface.
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Affiliation(s)
- Alina Vinslava
- Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
| | | | - Wolfgang Wernsdorfer
- Institut Néel-CNRS and University Grenoble Alpes , F-38000 Grenoble, Cedex 9, France
| | - Khalil A Abboud
- Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
| | - George Christou
- Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
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20
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Walsh JPS, Meadows SB, Ghirri A, Moro F, Jennings M, Smith WF, Graham DM, Kihara T, Nojiri H, Vitorica-Yrezabal IJ, Timco GA, Collison D, McInnes EJL, Winpenny REP. Electronic Structure of a Mixed-Metal Fluoride-Centered Triangle Complex: A Potential Qubit Component. Inorg Chem 2015; 54:12019-26. [PMID: 26636473 DOI: 10.1021/acs.inorgchem.5b01898] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel fluoride-centered triangular-bridged carboxylate complex, [Ni2Cr(μ3-F)(O2C(t)Bu)6(HO2C(t)Bu)3] (1), is reported. Simple postsynthetic substitution of the terminal pivalic acids in 1 with pyridine and 4-methylpyridine led to the isolation of [Ni2Cr(μ3-F)(O2C(t)Bu)6(C5H5N)3] (2) and [Ni2Cr(μ3-F)(O2C(t)Bu)6((4-CH3)C5H4N)3] (3). Structural and magnetic characterizations carried out on the series reveal a dominating antiferromagnetic interaction between the nickel and chromium centers leading to an S = (1)/2 ground state with a very unusual value of geff = 2.48.
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Affiliation(s)
- James P S Walsh
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Sarah B Meadows
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Alberto Ghirri
- S3 Centre, Institute Nanoscience (CNR) , via G. Campi 213/A, 41125 Modena, Italy
| | - Fabrizio Moro
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Martin Jennings
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - William F Smith
- School of Physics and Astronomy and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Darren M Graham
- School of Physics and Astronomy and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Takumi Kihara
- Institute for Materials Research, Tohoku University , Katahira, Sendai 980-8577, Japan
| | - Hiroyuki Nojiri
- Institute for Materials Research, Tohoku University , Katahira, Sendai 980-8577, Japan
| | - Iñigo J Vitorica-Yrezabal
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Grigore A Timco
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - David Collison
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Eric J L McInnes
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Richard E P Winpenny
- School of Chemistry and Photon Science Institute, The University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
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21
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Pedersen KS, Sørensen MA, Bendix J. Fluoride-coordination chemistry in molecular and low-dimensional magnetism. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Schax F, Limberg C. Reactivity of an Octanuclear Copper(I) Siloxide Compound - Isolation of a Copper(II) Oxo Compound with a Supertetrahedral Core. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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A review of manganese-based molecular magnets and supramolecular architectures from phenolic oximes. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.12.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Giannopoulos DP, Wilson-Konderka C, Gagnon KJ, Teat SJ, Escuer A, Metallinos C, Stamatatos TC. Synthesis and first use of pyridine-2,6-diylbis(pyrazine-2-ylmethanone) in metal cluster chemistry: a {MnIII3Na2} complex with an ideal trigonal bipyramidal geometry. Dalton Trans 2015; 44:4318-27. [DOI: 10.1039/c4dt03666b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new {Mn3Na2} compound with trigonal bipyramidal topology was obtained from a metal-assisted transformation of the ligand (pz)CO(py)CO(pz).
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Affiliation(s)
| | | | - Kevin J. Gagnon
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Simon J. Teat
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Albert Escuer
- Departament de Quimica Inorganica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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25
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Comar P, Rajeshkumar T, Nichol GS, Pitak MB, Coles SJ, Rajaraman G, Brechin EK. Switching the orientation of Jahn–Teller axes in oxime-based MnIII dimers and its effect upon magnetic exchange: a combined experimental and theoretical study. Dalton Trans 2015; 44:19805-11. [DOI: 10.1039/c5dt03615a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A switch in the relative orientations of the Jahn–Teller axes in [Mn(NO)]2 dimers switches the magnetic exchange from ferromagnetic to antiferromagnetic.
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Affiliation(s)
- Priyanka Comar
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | | | - Gary S. Nichol
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Mateusz B. Pitak
- UK National Crystallographic Service
- Chemistry
- University of Southampton
- UK
| | - Simon J. Coles
- UK National Crystallographic Service
- Chemistry
- University of Southampton
- UK
| | - Gopalan Rajaraman
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Euan K. Brechin
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
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26
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Utko J, Canaj AB, Milios CJ, Sobocińska M, Lis T. New members in the [Mn10] supertetrahedron family. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.03.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Singh SK, Rajaraman G. Probing the Origin of Magnetic Anisotropy in a Dinuclear {MnIIICuII} Single-Molecule Magnet: The Role of Exchange Anisotropy. Chemistry 2014; 20:5214-8. [DOI: 10.1002/chem.201304357] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/27/2014] [Indexed: 11/07/2022]
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28
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Pedersen KS, Sigrist M, Weihe H, Bond AD, Thuesen CA, Simonsen KP, Birk T, Mutka H, Barra AL, Bendix J. Magnetic Interactions through Fluoride: Magnetic and Spectroscopic Characterization of Discrete, Linearly Bridged [MnIII2(μ-F)F4(Me3tacn)2](PF6). Inorg Chem 2014; 53:5013-9. [DOI: 10.1021/ic500049w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kasper S. Pedersen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Marc Sigrist
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
- Institut Laue-Langevin, F-38042 Grenoble Cedex 9, France
| | - Høgni Weihe
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Andrew D. Bond
- Department
of Physics and Chemistry, University of Southern Denmark, Campusvej
55, 5230 Odense
M, Denmark
| | - Christian Aa. Thuesen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Kim P. Simonsen
- School of Conservation, The Royal Academy of Fine Arts Schools of Architecture, Design and Conservation, Esplanaden
34, DK-1263 Copenhagen, Denmark
| | - Torben Birk
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Hannu Mutka
- Institut Laue-Langevin, F-38042 Grenoble Cedex 9, France
| | - Anne-Laure Barra
- Laboratoire National des Champs Magnétiques
Intenses, CNRS, BP 166, F-38042 Grenoble Cedex 9, France
| | - Jesper Bendix
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
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29
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Song Y, Zhang G, Qin X, Gao Y, Ding S, Wang Y, Du C, Liu Z. Chiral [NaMnIIMnIII3] and [Na2MnII2MnIII6] clusters constructed by chiral multidentate Schiff-base ligands: synthesis, structures, CD spectra and magnetic properties. Dalton Trans 2014; 43:3880-7. [DOI: 10.1039/c3dt51874d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Milios CJ, Winpenny REP. Cluster-Based Single-Molecule Magnets. MOLECULAR NANOMAGNETS AND RELATED PHENOMENA 2014. [DOI: 10.1007/430_2014_149] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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31
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Singh SK, Rajaraman G. Can anisotropic exchange be reliably calculated using density functional methods? A case study on trinuclear Mn(III)-M(III)-Mn(III) (M=Fe, Ru, and Os) cyanometalate single-molecule magnets. Chemistry 2013; 20:113-23. [PMID: 24288194 DOI: 10.1002/chem.201303489] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Indexed: 11/05/2022]
Abstract
Density functional studies have been performed on a set of trinuclear single-molecule magnets (SMMs) of general formula [{Mn2(5-Br salen)2(MeOH)2}M(CN)6](NEt4) (M=Fe(III) (1), Ru(III) (2) and Os(III) (3); 5-Brsalen=N,N'-ethylenebis(5-bromosalicylidene)iminato anion). We have computed the orbital-dependent exchange interaction for all three complexes for the first time using DFT and complete active space self-consistent field (CASSCF) methods. DFT calculations yield the anisotropic exchange as J(ξξ)=3.5 cm(-1) for 1; J(ξξ)=12.1 cm(-1), J(ζζ)=-6.9 cm(-1) and J(ηη)=-14 cm(-1) for 2; and J(ξξ)=23.7 cm(-1) and J(ζζ) =-11.1 cm(-1) for 3. The computed values are in agreement with the experimental report, and this suggests that the established methodology can be used to compute the anisotropic exchange in larger clusters. Our calculations reiterate the fact that the exchange is described by a three-axis anisotropic exchange for complexes 2 and 3 as evidenced by the experiments. A stronger exchange coupling as we move down the periodic table from 3d to 5d is reproduced by our calculations, and the origin of this enhancement in the exchange interaction has been probed by using molecular orbital analysis. The electronic origin of different types of exchange observed in this series is found to be related to the energy difference between possible degenerate pairs and the nature of orbital interactions. By computing the exchange interaction, the single-ion anisotropy of Mn(III) and zero-field splitting of the S=9/2 ground state of complexes 1-3 using CASSCF and/or DFT methods, we have attempted to shed light on the issue of anisotropic exchange and the barrier height for the magnetisation reversal in SMMs. Comprehensive magneto-structural correlations have been developed to offer clues on how to further enhance the barrier height in this class of SMMs.
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Affiliation(s)
- Saurabh Kumar Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India), Fax: +91-(0)22-2576-7152
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32
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Anastasiadis NC, Bilis G, Plakatouras JC, Raptopoulou CP, Psycharis V, Beavers C, Teat SJ, Louloudi M, Perlepes SP. Iron(III) chloride–benzotriazole adducts with trigonal bipyramidal geometry: Spectroscopic, structural and catalytic studies. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.03.062] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Oligonuclear homo- and mixed-valence manganese complexes based on thiophene- or aryl-carboxylate ligation: Synthesis, characterization and magnetic studies. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.03.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Zhou AJ, Leng JD, Hu JS, Tong ML. High symmetry superoctahedron cluster [MnIII18O14]26+ from the use of N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylenediamine. Dalton Trans 2013; 42:9428-31. [DOI: 10.1039/c3dt50695a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Berg N, Hooper TN, Liu J, Beedle CC, Singh SK, Rajaraman G, Piligkos S, Hill S, Brechin EK, Jones LF. Synthetic, structural, spectroscopic and theoretical study of a Mn(iii)–Cu(ii) dimer containing a Jahn–Teller compressed Mn ion. Dalton Trans 2013; 42:207-16. [DOI: 10.1039/c2dt31995k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Benjamin SL, Levason W, Reid G. Medium and high oxidation state metal/non-metal fluoride and oxide–fluoride complexes with neutral donor ligands. Chem Soc Rev 2013; 42:1460-99. [DOI: 10.1039/c2cs35263j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Jeon IR, Clérac R. Controlled association of single-molecule magnets (SMMs) into coordination networks: towards a new generation of magnetic materials. Dalton Trans 2012; 41:9569-86. [PMID: 22772402 DOI: 10.1039/c2dt30906h] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The field of molecular magnetism has rapidly expanded since the discovery of single-molecule magnets (SMMs) at the beginning of the 1990s. Numerous SMMs have been studied and a broad community currently works on these systems to improve their magnetic characteristics. However, it has also become an important strategy to diversify a part of our research activity toward the organization of these magnetic molecules in order to move closer to future applications. One of the possible ways is to utilize SMMs as molecular building blocks and assemble them with the help of coordination chemistry. This strategy presents a significant challenge since the intrinsic magnetic properties of the parent SMMs can be modified, which consequently also provides a unique opportunity to investigate new behaviours at the frontier between SMMs and classical bulk magnets. Furthermore, the design of systems with "enhanced" SMM properties or magnet behaviour is theoretically possible by choosing coordinating linkers that could favour an effective ferromagnetic arrangement of the SMMs. In this perspective article, we will give an overview of the known networks based on SMMs with an emphasis on the synthetic strategies, magnetic properties, and finally possible routes to a new generation of molecular magnetic materials.
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38
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Ruan CZ, Wen R, Liang MX, Kong XJ, Ren YP, Long LS, Huang RB, Zheng LS. Two Triazole-Based Metal–Organic Frameworks Constructed from Nanosized Cu20 and Cu30 Wheels. Inorg Chem 2012; 51:7587-91. [DOI: 10.1021/ic3003299] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chan-Zi Ruan
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ru Wen
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Min-Xia Liang
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiang-Jian Kong
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yan-Ping Ren
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - La-Sheng Long
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Rong-Bin Huang
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lan-Sun Zheng
- State Key
Laboratory of Physical Chemistry of Solid Surface and Department of
Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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39
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Taylor SM, McIntosh RD, Rezé J, Dalgarno SJ, Brechin EK. Oxacalix[3]arene-supported supertetrahedron. Chem Commun (Camb) 2012; 48:9263-5. [DOI: 10.1039/c2cc34792j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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40
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Kostakis GE, Blatov VA, Proserpio DM. A method for topological analysis of high nuclearity coordination clusters and its application to Mn coordination compounds. Dalton Trans 2012; 41:4634-40. [DOI: 10.1039/c2dt12263d] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Langley SK, Moubaraki B, Berry KJ, Murray KS. Supertetrahedral icosanuclear and ring-like decanuclear mixed valent manganese(II/III) triethanolamine clusters. Dalton Trans 2011; 39:4848-55. [PMID: 21491697 DOI: 10.1039/b926795f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterisation of three new mixed-valent manganese clusters [Mn(II)₄Mn(III)₁₆O₁₂(OH)₄(tea)₈(chp)₄]·6MeOH·4H₂O (1), [Mn(II)₆Mn(III)₄(teaH)₄(teaH₂)₂(tpaa)₆(F)₈]·2Et₂O·4MeCN (2) and [Mn(II)₆Mn(III)₄(teaH)₄(teaH₂)₂(2-bpca)₆(F)₈]·4MeCN (3) are reported. They were obtained by the reaction of simple manganese salts with triethanolamine (teaH₃), triethylamine (NEt₃) and the appropriate co-ligand. In the case of 1, 6-chloro-2-hydroxypyridine (Hchp) was used, for 2, triphenylacetic acid (tpaa) and 3, 2-biphenylcarboxylic acid (2-bpca). The core of 1 is a Mn₂₀ supertetrahedron, while the cores of 2 and 3 are identical and have distorted ring-like topologies. Variable-temperature, solid-state DC and AC magnetic studies were performed on 1-3 in the 2-300 K (DC) and 2-18 K (AC) ranges. Cluster 1 has a S = 9 ground state with excited S states, larger in value than 9, close in energy. No SMM features were apparent in 1. In contrast, clusters 2 and 3, with S = 12 or 13 ground states, and with excited S levels of lower value than 12 lying close in energy, do show SMM features, albeit below 2 K in their AC out-of-phase, frequency dependent data.
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Affiliation(s)
- Stuart K Langley
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
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42
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Xue X, Li GT, Peng YH, Wu L, Wu BL. Two photoluminescent pentanuclear homo- and hetero-metal complexes based on benzotriazole bridge. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.584974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xia Xue
- a Department of Chemistry , Zhengzhou University , Zhengzhou 450052 , P.R. China
| | - Guo-Ting Li
- b Department of Environmental and Municipal Engineering , North China University of Water Conservancy and Electric Power , Zhengzhou 450011 , China
| | - Yu-Han Peng
- a Department of Chemistry , Zhengzhou University , Zhengzhou 450052 , P.R. China
| | - Lian Wu
- a Department of Chemistry , Zhengzhou University , Zhengzhou 450052 , P.R. China
| | - Ben-Lai Wu
- a Department of Chemistry , Zhengzhou University , Zhengzhou 450052 , P.R. China
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43
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Stamatatos TC, Oliver K, Abboud KA, Christou G. Synthetic Entry into Polynuclear Bismuth–Manganese Chemistry: High Oxidation State BiIII2MnIV6 and BiIIIMnIII10 Complexes. Inorg Chem 2011; 50:5272-82. [DOI: 10.1021/ic200656q] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Katie Oliver
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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44
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Biswas S, Tonigold M, Speldrich M, Kögerler P, Weil M, Volkmer D. Syntheses and magnetostructural investigations on Kuratowski-type homo- and heteropentanuclear coordination compounds [MZn4Cl4(L)6] (M(II) = Zn, Fe, Co, Ni, or Cu; L = 5,6-dimethyl-1,2,3-benzotriazolate) represented by the nonplanar K(3,3) graph. Inorg Chem 2010; 49:7424-34. [PMID: 20690751 DOI: 10.1021/ic100749k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Homo- and heteropentanuclear coordination compounds [MZn(4)Cl(4)(L)(6)] (M(II) = Zn, Fe, Co, Ni, or Cu; L = 5,6-dimethyl-1,2,3-benzotriazolate) were prepared containing mu(3)-bridging N-donor ligands (1,2,3-benzotriazolate), which are structurally related to the fundamental secondary building unit of Metal-organic Framework Ulm University-4 (MFU-4). The unique topology of these T(d)-symmetrical compounds is characterized by the nonplanar K(3,3) graph, introduced into graph theory by the mathematician Casimir Kuratowski in 1930. The following "Kuratowski-type" compounds were investigated by single-crystal X-ray structure analysis: [MZn(4)Cl(4)(Me(2)bta)(6)].2DMF (M(II) = Zn, Fe, Co, and Cu; DMF = N,N'-dimethylformamide) and [MZn(4)Cl(4)(Me(2)bta)(6)].2C(6)H(5)Br (M(II) = Co and Ni; C(6)H(5)Br = bromobenzene). The mu(3)-bridging benzotriazolate ligands span the edges of an imaginary tetrahedron, in the center of which a redox-active octahedrally coordinated M(II) ion is placed. Four Zn(II) ions are located at the corners of the coordination units. Each Zn center is bound to a monodentate Cl(-) anion and three N-donor atoms stemming from different benzotriazolate ligands. The fact that open-shell redox-active M(II) ions can be introduced selectively into the central octahedral coordination sites is unambiguously proven by a combination of magnetic measurements, UV-vis spectroscopy, and energy-dispersive X-ray and inductively coupled plasma atomic emission spectrometry analysis. The phase purity of all compounds was checked by powder X-ray diffractometry, IR spectroscopy, and elemental analysis. The electronic spectra and magnetic properties of the compounds are in complete agreement with their structures determined from single-crystal data. Thermogravimetric analysis shows that all compounds possess a high thermal stability up to 673 K. The pentanuclear compounds retain their structural integrity in solution, as evidenced by time-of-flight mass spectrometry analysis and comparative solution and solid-state diffuse-reflectance spectroscopy. High stability paired with the presence of redox-active metal ions and Lewis-acidic Zn centers renders Kuratowski-type compounds structural and functional models for future MFU-4-type bi- and multifunctional heterogeneous catalysts.
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Affiliation(s)
- Shyam Biswas
- Institute of Inorganic Chemistry II, Materials and Catalysis, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
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45
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Stief R, Massa W. Einfluss von H-Brückenbindungen auf die Jahn-Teller-Verzerrung in den Kettenstrukturen von 2,2′-bipyMn(H2PO4)F2·H2O und 2,2′-bipyMn(H2PO4)2F. Influence of H-bonds on the Jahn-Teller Distortion in the Chain Structures of 2,2′-bipyMn(H2PO4)F2·H2O and 2,2′-b. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.201000208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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47
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Kostakis GE, Ako AM, Powell AK. Structural motifs and topological representation of Mn coordination clusters. Chem Soc Rev 2010; 39:2238-71. [PMID: 20414487 DOI: 10.1039/b918192j] [Citation(s) in RCA: 232] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polynuclear coordination clusters have become of particular interest in recent times as a result of their relevance to bioinorganic chemistry and to the special area of molecule-based magnetic materials where cluster compounds behave as single-molecule magnets (SMMs). In this review we have focused on describing Mn coordination cluster complexes. Adopting our topological approach for the description of coordination clusters we present a means of classifying the structural motifs found in manganese clusters which range in nuclearity from 5 to 84, as well as some representative heterometallic Mn-M (M = K, Na, Ca, Sr, Ln) cluster complexes that have been reported. This sheds new light on the classification of the types of core structure accessible which, in turn, provides a useful means for developing the so-far missing magneto-structural correlation algorithm for these finite 0-D systems (212 references).
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Affiliation(s)
- George E Kostakis
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Postfach 3640, D-76021 Karlsruhe, Germany
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48
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Wang F, Wu XY, Zhao ZG, Zhang QS, Xie YM, Yu R, Lu CZ. Zinc and cadmium complexes of pyridyl-benzotriazole: Syntheses, structures and supramolecular interaction. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.12.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Viciano-Chumillas M, Tanase S, Roubeau O, Teat SJ, de Jongh LJ, Reedijk J. An Oxide-Centered Trinuclear Manganese(III) Compound with a Bulky Phenol-Pyrazolate Ligand. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Manolopoulou E, Stoumpos CC, Siczek M, Lis T, Brechin EK, Milios CJ. “Naked” [Mn
3
O]
7+
Triangles: The Effect of Auxiliary Ligands on Magnetic Exchange. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200900905] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Efi Manolopoulou
- Department of Chemistry, University of Crete, 71003 Herakleion, Greece
| | - Constantinos C. Stoumpos
- Department of Chemistry, University of Crete, 71003 Herakleion, Greece
- Department of Chemistry, University of Patras, 26504 Patras, Greece
| | - Milosz Siczek
- Faculty of Chemistry, University of Wroclaw, Joliot‐Curie 14, 50‐383 Wroclaw, Poland
| | - Tadeusz Lis
- Faculty of Chemistry, University of Wroclaw, Joliot‐Curie 14, 50‐383 Wroclaw, Poland
| | - Euan K. Brechin
- School of Chemistry, The University of Edinburgh, West Mains Road, EH9 3JJ, UK
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