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Li A, Forté J, Li Y, Journaux Y, Lisnard L. Synthesis, structure and magnetic properties of an oxamate-based 1D coordination polymer built on pentametallic links. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120320] [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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de Oliveira Maciel JW, Lemes MA, Valdo AK, Rabelo R, Martins FT, Queiroz Maia LJ, de Santana RC, Lloret F, Julve M, Cangussu D. Europium(III), Terbium(III), and Gadolinium(III) Oxamato-Based Coordination Polymers: Visible Luminescence and Slow Magnetic Relaxation. Inorg Chem 2021; 60:6176-6190. [PMID: 33861078 DOI: 10.1021/acs.inorgchem.0c03226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of aqueous solutions of EuIII, TbIII, and GdIII ions with Na2Hpcpa [H3pcpa = N-(4-carboxyphenyl)oxamic acid] afforded three new isostructural oxamate-containing lanthanide(III) coordination polymers of general formula {LnIII2(Hpcpa)3(H2O)5·H2O}n [Ln = Eu (1),Tb (2), and Gd(3)]. Their structure is made up of neutral zigzag chains running parallel to the [101] direction where double syn-syn carboxylate(oxamate)-bridged dilanthanide(III) pairs (Ln1 and Ln2) are linked by three Hpcpa2- ligands, one of them with the μ-κ2O,O':κO″ coordination mode and the other two with the μ3-κ2O,O':κO″:κO'''. Additionally, two of those chains are interlinked through hydrogen bonding and π-π type interactions, resulting in a porous structure with channels where water molecules are hosted. The emission properties of 1 and 2 are evaluated as a function of the temperature, exhibiting an emission in red and green, respectively. The external quantum yield for 2 is approximately 7 times that obtained for 1, indicating that the oxamate ligand is a better sensitizer for TbIII ions. The temperature dependence of the dc magnetic properties of 1-3 reveals a different magnetic behavior depending on the nature of the LnIII ion. A continuous decrease of χMT occurs for 1 upon cooling, and finally χMT tends to vanish, as expected for the thermal depopulation of the six magnetic 7FJ excited states (J = 1-6) of the EuIII ion with a nonmagnetic 7F0 ground state. χMT for 2 decreases sharply with decreasing the temperature due to the depopulation of the splitted mJ levels of the 7F7 ground state of the magnetically anisotropic TbIII ion. A very weak antiferromagnetic interaction between the magnetically isotropic GdIII ions across the double carboxylate(oxamate) bridge is responsible for the small decrease of χMT at low temperatures for 3. The dynamic (ac) magnetic properties of 2 and 3 reveal a slow magnetic relaxation with very incipient frequency-dependent χM″ signals below 6.0 K (2) and frequency-dependent χM″ peaks below 10.0 K (3) under nonzero applied dc magnetic fields, being thus new examples of field-induced single molecule magnets (SMMs).
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Affiliation(s)
| | - Maykon Alves Lemes
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Goiás, Brazil, 74690-900
| | - Ana Karoline Valdo
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Goiás, Brazil, 74690-900.,Instituto Federal de Educação, Ciência e Tecnologia Goiano, Iporá, Goiás, Brazil, 76200-000
| | - Renato Rabelo
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Facultat de Química de la Universitat de València, València, Paterna, Spain, 46980
| | - Felipe Terra Martins
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Goiás, Brazil, 74690-900
| | | | | | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Facultat de Química de la Universitat de València, València, Paterna, Spain, 46980
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Facultat de Química de la Universitat de València, València, Paterna, Spain, 46980
| | - Danielle Cangussu
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Goiás, Brazil, 74690-900
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Li A, Chamoreau LM, Baptiste B, Li Y, Journaux Y, Lisnard L. Solvothermal synthesis, structure and magnetic properties of heterometallic coordination polymers based on a phenolato-oxamato co-bidentate-tridentate ligand. Dalton Trans 2021; 50:681-688. [PMID: 33332496 DOI: 10.1039/d0dt03269g] [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
The use of solvothermal conditions has succesfully led to the preparation of heterometallic 1D coordination polymers from a co-bidentate-tridentate phenolato-oxamato ligand. The reaction of the N-(2-hydoxyphenyl)oxamic acid (ohpma) with acetate salts of transition metal ions at 80 °C has yielded the heterobimetallic [Cu(ohpma)M(OAc)(DMF)2] (M = Co (1); Mn (2)) and the heterotrimetallic [Cu(ohpma)Co0.57Mn0.43(OAc)(DMF)2] (3) chain compounds. Single-crystal and powder diffraction studies show that the polymers are isostructural. Magnetic studies suggest the existence of an inter-chain two-dimensional antiferromagnetic interaction taking place in compounds 1-3.
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Affiliation(s)
- Ang Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75252, Paris, France.
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da Cunha TT, da Silveira COC, Barbosa VMM, Oliveira WXC, da Silva Júnior EN, Ferreira FF, Pedroso EF, Pereira CLM. Ferromagnetic coupling in a dicopper( ii) oxamate complex bridged by carboxylate groups. CrystEngComm 2021. [DOI: 10.1039/d0ce01742f] [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
The self-assembly of N-(4-hydroxyphenyl)oxamate ligands and copper(ii) ions result in a dinuclear copper complex bridged by carboxylate moieties of the oxamate ligands exhibiting a ferromagnetic coupling.
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Affiliation(s)
- Tamyris T. da Cunha
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Vitor M. M. Barbosa
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Willian X. C. Oliveira
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Fabio F. Ferreira
- Centro de Ciências Naturais e Humanas (CCNH)
- Universidade Federal do ABC (UFABC)
- Santo André
- Brazil
| | - Emerson F. Pedroso
- Centro Federal de Educação Tecnológica de Minas Gerais
- Belo Horizonte
- Brazil
| | - Cynthia L. M. Pereira
- Departamento de Química
- Instituto de Ciências Exatas
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
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Li A, Li Y, Chamoreau L, Desmarets C, Lisnard L, Journaux Y. A Bis‐Polydentate Oxamate‐Based Achiral Ligand That Can Stabilize a Macrocyclic Mixed Valence Compound or Induce a 1D Helical Chain. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ang Li
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
| | - Yanling Li
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
| | - Lise‐Marie Chamoreau
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
| | - Christophe Desmarets
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
| | - Laurent Lisnard
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
| | - Yves Journaux
- CNRS Institut Parisien de Chimie Moléculaire, IPCM Sorbonne Université 75252 Paris France
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Mocanu MI, Patrascu AA, Hillebrand M, Shova S, Lloret F, Julve M, Andruh M. Trinuclear Nickel(II) and Cobalt(II) Complexes Constructed from Mannich–Schiff‐Base Ligands: Synthesis, Crystal Structures, and Magnetic Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mihaela I. Mocanu
- Inorganic Chemistry Laboratory Faculty of Chemistry University of Bucharest Str. Dumbrava Rosie 23 020464 Bucharest Romania
| | - Andrei A. Patrascu
- Inorganic Chemistry Laboratory Faculty of Chemistry University of Bucharest Str. Dumbrava Rosie 23 020464 Bucharest Romania
| | - Mihaela Hillebrand
- Department of Physical Chemistry Faculty of Chemistry University of Bucharest Bucharest Romania
| | - Sergiu Shova
- Laboratory of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Faculty of Chemistry Romanian Academy Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol) Faculty of Chemistry Facultat de Química de la Universitat de València C/ Catedrático José Beltrán 2 46980 Paterna València Spain
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol) Faculty of Chemistry Facultat de Química de la Universitat de València C/ Catedrático José Beltrán 2 46980 Paterna València Spain
| | - Marius Andruh
- Inorganic Chemistry Laboratory Faculty of Chemistry University of Bucharest Str. Dumbrava Rosie 23 020464 Bucharest Romania
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Li H, Zhang N, Liu J, Su M, Zeng S, Xu Z. Synthesis and magnetic properties of chiral molecular magnet regulated by terminal coordination groups. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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