Hydrogen bonding mediated magnetic exchange interactions in a Cu(II) complex based on o-phenylenedioxydiacetato ligand: synthesis, crystal structure and magnetic properties
Krešáková, Lenka ; Stolárová, Monika Pataky ; Tomás, Milagros ; Titiš, Ján ; Falvello, Larry R. (Universidad de Zaragoza) ; Cernák, Juraj
Resumen: Single crystals of the Cu(II) complex [Cu(PDOA)(H2O)3]n (1) with the O-donor ligand (H2PDOA = o-phenylenedioxydiacetic acid) were synthesized and studied. The crystal structure of 1 is formed by zig-zag chains in which the Cu(II) atoms are linked by bridging PDOA2- ligands in a bis(monodentate) fashion via carboxylate oxygen donor atoms. The Cu(II) central atom is penta-coordinated by five oxygen atoms from two different PDOA2- ligands and three oxygen atoms of the aqua ligands yielding an O2O3 donor set. Hydrogen bonds of the O-H···O type afford a 2D supramolecular structure with short distances of 4.8562(7) and 5.1431(7) Å between the Cu(II) atoms. DC magnetic studies in the temperature range 2 – 300 K revealed antiferromagnetic exchange interactions via hydrogen bonds which were corroborated by theoretical calculations.
Idioma: Inglés
DOI: 10.1016/j.molstruc.2025.143985
Año: 2025
Publicado en: JOURNAL OF MOLECULAR STRUCTURE 1350, Part 1 (2025), 143985 [9 p.]
ISSN: 0022-2860
Financiación: info:eu-repo/grantAgreement/ES/DGA/E11-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-124880NB-I00
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)
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Fecha de embargo : 2027-09-11
Exportado de SIDERAL (2025-10-09-13:25:56)
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Idioma: Inglés
DOI: 10.1016/j.molstruc.2025.143985
Año: 2025
Publicado en: JOURNAL OF MOLECULAR STRUCTURE 1350, Part 1 (2025), 143985 [9 p.]
ISSN: 0022-2860
Financiación: info:eu-repo/grantAgreement/ES/DGA/E11-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-124880NB-I00
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Fecha de embargo : 2027-09-11
Exportado de SIDERAL (2025-10-09-13:25:56)
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Record created 2025-09-26, last modified 2025-10-09