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http://hdl.handle.net/2445/177733
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DC Field | Value | Language |
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dc.contributor.author | Cruz, Carlos | - |
dc.contributor.author | Vega Carvallo, Andrés Igor | - |
dc.contributor.author | Spodine, Evgenia | - |
dc.contributor.author | Escuer Fité, Albert | - |
dc.contributor.author | Marco, José F. | - |
dc.contributor.author | Menéndez, Nieves | - |
dc.contributor.author | Venegas-Yazigi, Diego | - |
dc.contributor.author | Paredes García, Verónica | - |
dc.date.accessioned | 2021-05-27T10:32:10Z | - |
dc.date.available | 2021-05-27T10:32:10Z | - |
dc.date.issued | 2020-08-14 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.uri | http://hdl.handle.net/2445/177733 | - |
dc.description.abstract | In this work, we report a new octanuclear cluster based on FeIII and the ligand 1H-imidazole-4,5-dicarboxylic acid, [Et3NH]12[Fe8(IDC)12]·10DMF·13H2O (1), with a metal core containing eight FeIII connected by only one type of organic ligand. A peak at 573 m/z in the mass spectra of the compound suggests the adduct species {[Fe8(IDC)12]+8H}4-. By X-ray photoelectron spectroscopy, the oxidation state of the iron cation was confirmed to be 3+, also identifying the presence of a quaternary nitrogen species, which act as a countercation of the anionic metal core [Fe8(IDC)12]12-. Mössbauer spectra recorded at different temperatures show an isomer shift and quadrupole splitting parameters that confirm the existence of only FeIII-HS in the structure of 1. X-ray analysis reveals that compound 1 crystallizes in the orthorhombic system space group Ibam, confirming a molecular cluster structure with an almost regular cube as geometry, with the FeIII atoms located at the corners of the cube and connected by μ-1κ2 N,O:2κ2 N',O‴-IDC3- bridges. Additionally, the magnetic measurements reveal a weak antiferromagnetic coupling in the Fe8 III coordination cluster (J = -3.8 cm-1). To the best of our knowledge, 1 is the first member of the family of cubes assembled with 1H-imidazole-4,5-dicarboxylic acid and FeIII cation, exhibiting high pH stability over a broad pH range, making it an ideal candidate for the design of supramolecular structures and metal-organic frameworks. | - |
dc.format.extent | 10 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Chemical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1021/acsomega.0c02420 | - |
dc.relation.ispartof | ACS Omega , 2020, vol. 5, num. 35, p. 22238-22247 | - |
dc.relation.uri | https://doi.org/10.1021/acsomega.0c02420 | - |
dc.rights | (c) American Chemical Society, 2020 | - |
dc.rights.uri | http://pubs.acs.org/page/policy/authorchoice_termsofuse.html | - |
dc.source | Articles publicats en revistes (Química Inorgànica i Orgànica) | - |
dc.subject.classification | Espectrometria de masses | - |
dc.subject.classification | Espectroscòpia de raigs X | - |
dc.subject.other | Mass spectrometry | - |
dc.subject.other | X-ray spectroscopy | - |
dc.title | New highly charged iron(III) metal-organic cube stabilized by a bulky amine. | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 712071 | - |
dc.date.updated | 2021-05-27T10:32:10Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 32923781 | - |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
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712071.pdf | 2.28 MB | Adobe PDF | View/Open |
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