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Rabelo R, Castellano M, Barros WP, Carbonell-Vilar JM, Viciano-Chumillas M, Lloret F, Julve M, Pasán J, Cañadillas-Delgado L, Ruiz-García R, Cano J. Molecular engineering of an inverse hexacopper(II) coordination complex with a photoactive metallacyclophane centroligand as prototype of a magnetic photoswitch†. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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de Campos NR, Simosono CA, Landre Rosa IM, da Silva RMR, Doriguetto AC, do Pim WD, Gomes Simões TR, Valdo AKSM, Martins FT, Sarmiento CV, Nunes WC, Guedes GP, Pedroso EF, Pereira CLM, Stumpf HO, Lloret F, Julve M, Marinho MV. Building-up host-guest helicate motifs and chains: a magneto-structural study of new field-induced cobalt-based single-ion magnets. Dalton Trans 2021; 50:10707-10728. [PMID: 34308946 DOI: 10.1039/d1dt01693h] [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 this work, we present the synthetic pathway, a refined structural description, complete solid-state characterization and the magnetic properties of four new cobalt(ii) compounds of formulas [Co(H2O)6][Co2(H2mpba)3]·2H2O·0.5dmso (1), [Co(H2O)6][Co2(H2mpba)3]·3H2O·0.5dpss (2), [Co2(H2mpba)2(H2O)4]n·4nH2O (3), and [Co2(H2mpba)2(CH3OH)2(H2O)2]n·0.5nH2O·2ndpss (4) [dpss = 2,2'-dipyridyldisulfide and H4mpba = 1,3-phenylenebis(oxamic) acid], where 2 and 4 were obtained from [Co(dpss)Cl2] (Pre-I) as the source of cobalt(ii). All four compounds are air-stable and were prepared under ambient conditions. 1 and 2 were obtained from a slow diffusion method [cobalt(ii) : H2mpba2- molar ratio used 1 : 1] and their structures are made up of [Co2(H2mpba)3]2- anionic helicate units and [Co(H2O)6]2+ cations, exhibiting supramolecular three-dimensional structures. Interestingly, a supramolecular honeycomb network between the helicate units interacting with each other through R22(10) type hydrogen bonds occurs in 2 hosting one co-crystallized dpss molecule. On the other hand, for the first time, linear (3) and zigzag (4) cobalt(ii) chains were isolated by slow evaporation of stirred solutions of mixed solvents with cobalt(ii) : H2mpba2- in 1 : 2 molar ratio at room temperature. Magnetic measurements of Pre-I revealed a quasi magnetically isolated S = 3/2 spin state with a significant second-order spin-orbit contribution as expected for tetrahedrally coordinated cobalt(ii) ions. The analysis of the variable temperature static (dc) magnetic susceptibility data through first- (1 and 3) and second-order spin-orbit coupling models (2 and 4) reveals the presence of magnetically non-interacting high-spin cobalt(ii) ions with easy-axis (1 and 4)/easy-plane magnetic anisotropies (2 and 4) with low rhombic distortions. Dynamic (ac) magnetic measurements for Pre-I and 1-4 below 8.0 K show that they are examples of field-induced Single-Ion Magnets (SIMs).
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Affiliation(s)
- Nathália R de Campos
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Cintia A Simosono
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Iara M Landre Rosa
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Rafaela M R da Silva
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Antônio C Doriguetto
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Walace D do Pim
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG 30421-169, Brazil
| | | | - Ana Karoline S M Valdo
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, Goiânia, GO 74690-900, Brazil
| | - Felipe T Martins
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, Goiânia, GO 74690-900, Brazil
| | - Charlie V Sarmiento
- Instituto de Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro, RJ 24210-346, Brazil
| | - Wallace C Nunes
- Instituto de Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro, RJ 24210-346, Brazil
| | - Guilherme P Guedes
- Instituto de Química, Universidade Federal Fluminense, Niterói, Rio de Janeiro, 24020-141, Brazil
| | - Emerson F Pedroso
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG 30421-169, Brazil
| | - Cynthia L M Pereira
- Departamento de Química-ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Humberto O Stumpf
- Departamento de Química-ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Universitat de València, C/catedrático José Beltrán 2, 46980 Paterna, València, Spain.
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Universitat de València, C/catedrático José Beltrán 2, 46980 Paterna, València, Spain.
| | - Maria Vanda Marinho
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
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When Molecular Magnetism Meets Supramolecular Chemistry: Multifunctional and Multiresponsive Dicopper(II) Metallacyclophanes as Proof-of-Concept for Single-Molecule Spintronics and Quantum Computing Technologies? MAGNETOCHEMISTRY 2020. [DOI: 10.3390/magnetochemistry6040069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Molecular magnetism has made a long journey, from the fundamental studies on through-ligand electron exchange magnetic interactions in dinuclear metal complexes with extended organic bridges to the more recent exploration of their electron spin transport and quantum coherence properties. Such a field has witnessed a renaissance of dinuclear metallacyclic systems as new experimental and theoretical models for single-molecule spintronics and quantum computing, due to the intercrossing between molecular magnetism and metallosupramolecular chemistry. The present review reports a state-of-the-art overview as well as future perspectives on the use of oxamato-based dicopper(II) metallacyclophanes as promising candidates to make multifunctional and multiresponsive, single-molecule magnetic (nano)devices for the physical implementation of quantum information processing (QIP). They incorporate molecular magnetic couplers, transformers, and wires, controlling and facilitating the spin communication, as well as molecular magnetic rectifiers, transistors, and switches, exhibiting a bistable (ON/OFF) spin behavior under external stimuli (chemical, electronic, or photonic). Special focus is placed on the extensive research work done by Professor Francesc Lloret, an outstanding chemist, excellent teacher, best friend, and colleague, in recognition of his invaluable contributions to molecular magnetism on the occasion of his 65th birthday.
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Reis NV, Barros WP, Oliveira WXC, Pereira CLM, Rocha WR, Pinheiro CB, Lloret F, Julve M, Stumpf HO. Crystal Structure and Magnetic Properties of an Oxamato-Bridged Heterobimetallic Tetranuclear [NiII
CuII
]2
Complex of the Rack Type. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700821] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Natalia V. Reis
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Wdeson P. Barros
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
- Instituto de Química; Universidade Estadual de Campinas; Caixa Postal 6154 13083-970 Campinas SP Brazil
| | - Willian X. C. Oliveira
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Cynthia L. M. Pereira
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Willian R. Rocha
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Carlos B. Pinheiro
- Departamento de Física; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
| | - Francesc Lloret
- Departament de Química Inorgânica; Instituto de Ciencia Molecular (ICMol); Universitat de Valencia; C / Catedrático José Beltrán 2 46980 Paterna, Valencia Spain
| | - Miguel Julve
- Departament de Química Inorgânica; Instituto de Ciencia Molecular (ICMol); Universitat de Valencia; C / Catedrático José Beltrán 2 46980 Paterna, Valencia Spain
| | - Humberto O. Stumpf
- Departamento de Química; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627 31270-901 Pampulha BH, MG Brazil
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Aliabadi A, Büchner B, Kataev V, Rüffer T. The interplay between spin densities and magnetic superexchange interactions: case studies of mono- and trinuclear bis(oxamato)-type complexes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:2245-2256. [PMID: 29114451 PMCID: PMC5669232 DOI: 10.3762/bjnano.8.224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
For future molecular spintronic applications the possibility to modify and tailor the magnetic properties of transition-metal complexes is very promising. One of such possibilities is given by the countless derivatization offered by carbon chemistry. They allow for altering chemical structures and, in doing so, to tune magnetic properties of molecular spin-carrying compounds. With emphasis on the interplay of the spin density distribution of mononuclear and magnetic superexchange couplings of trinuclear bis(oxamato)-type complexes we review on efforts on such magneto-structural correlations.
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Affiliation(s)
- Azar Aliabadi
- Leibnitz Institute for Solid State and Materials Research, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
| | - Bernd Büchner
- Leibnitz Institute for Solid State and Materials Research, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
- Institut für Festkörperphysik, TU Dresden, Zellescher Weg 16, D-01062 Dresden, Germany
| | - Vladislav Kataev
- Leibnitz Institute for Solid State and Materials Research, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
| | - Tobias Rüffer
- Department of Inorganic Chemistry, Faculty of Natural Sciences, TU Chemnitz, Strasse der Nationen 62, D-09111 Chemnitz, Germany
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Barros WP, Luisa Calatayud M, Lloret F, Julve M, Marino N, De Munno G, Stumpf HO, Ruiz-García R, Castro I. Self-assembly, binding ability and magnetic properties of dicopper(ii) pyrazolenophanes. CrystEngComm 2016. [DOI: 10.1039/c5ce02058a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nature of the blocking α-diimine ligand controls of the molecular folding and binding ability of the resulting “butterfly-shaped”, antiferromagnetically coupled dicopper(ii) pyrazolenophanes in the solid state.
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Affiliation(s)
- Wdeson P. Barros
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
- Instituto de Química
- Universidade Estadual de Campinas
| | - M. Luisa Calatayud
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
| | - Nadia Marino
- Dipartimento di Chimica e Tecnologie Chimiche (CTC)
- Università della Calabria
- Cosenza, Italy
- Department of Chemistry
- Syracuse University
| | - Giovanni De Munno
- Dipartimento di Chimica e Tecnologie Chimiche (CTC)
- Università della Calabria
- Cosenza, Italy
| | - Humberto O. Stumpf
- Departamento de Química – ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte, Brazil
| | - Rafael Ruiz-García
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
- Fundació General de la Universitat de València (FGUV)
- Valencia, Spain
| | - Isabel Castro
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- València, Spain
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Castellano M, Ruiz-García R, Cano J, Ferrando-Soria J, Pardo E, Fortea-Pérez FR, Stiriba SE, Barros WP, Stumpf HO, Cañadillas-Delgado L, Pasán J, Ruiz-Pérez C, de Munno G, Armentano D, Journaux Y, Lloret F, Julve M. Metallosupramolecular approach toward multifunctional magnetic devices for molecular spintronics. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.05.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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do Pim WD, de Faria ÉN, Oliveira WXC, Pinheiro CB, Nunes WC, Cano J, Lloret F, Julve M, Stumpf HO, Pereira CLM. A heterobimetallic [MnII5CuII5] nanowheel modulated by a flexible bis-oxamate type ligand. Dalton Trans 2015; 44:10939-42. [DOI: 10.1039/c5dt00996k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The reaction of the dicopper(ii) metallacyclophane [Cu2(edpba)2]2− with fully solvated manganese(ii) ions yields the nanowheel [Mn5Cu5(edpba)5] with a S = 10 low-lying spin state.
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Affiliation(s)
- Walace D. do Pim
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | - Érica N. de Faria
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | - Willian X. C. Oliveira
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | - Carlos B. Pinheiro
- Departamento de Física
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | | | - Joan Cano
- Instituto de Ciencia Molecular (ICMol)
- C/Catedrático José Beltrán
- 46980 Paterna
- Spain
- Fundació General de la Universitat de València (FGUV)
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol)
- C/Catedrático José Beltrán
- 46980 Paterna
- Spain
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol)
- C/Catedrático José Beltrán
- 46980 Paterna
- Spain
| | - Humberto O. Stumpf
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
| | - Cynthia L. M. Pereira
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- BH
- Brazil
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