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New Highly Charged Iron(III) Metal–Organic Cube Stabilized by a Bulky Amine
[Image: see text] In this work, we report a new octanuclear cluster based on Fe(III) and the ligand 1H-imidazole-4,5-dicarboxylic acid, [Et(3)NH](12)[Fe(8)(IDC)(12)]·10DMF·13H(2)O (1), with a metal core containing eight Fe(III) connected by only one type of organic ligand. A peak at 573 m/z in the m...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7482229/ https://www.ncbi.nlm.nih.gov/pubmed/32923781 http://dx.doi.org/10.1021/acsomega.0c02420 |
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author | Cruz, Carlos Vega Carvallo, Andrés Igor Spodine, Evgenia Escuer, Albert Marco, José F. Menéndez, Nieves Venegas-Yazigi, Diego Paredes-García, Verónica |
author_facet | Cruz, Carlos Vega Carvallo, Andrés Igor Spodine, Evgenia Escuer, Albert Marco, José F. Menéndez, Nieves Venegas-Yazigi, Diego Paredes-García, Verónica |
author_sort | Cruz, Carlos |
collection | PubMed |
description | [Image: see text] In this work, we report a new octanuclear cluster based on Fe(III) and the ligand 1H-imidazole-4,5-dicarboxylic acid, [Et(3)NH](12)[Fe(8)(IDC)(12)]·10DMF·13H(2)O (1), with a metal core containing eight Fe(III) 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 {[Fe(8)(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 [Fe(8)(IDC)(12)](12–). Mössbauer spectra recorded at different temperatures show an isomer shift and quadrupole splitting parameters that confirm the existence of only Fe(III)-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 Fe(III) atoms located at the corners of the cube and connected by μ-1κ(2)N,O:2κ(2)N′,O‴-IDC(3–) bridges. Additionally, the magnetic measurements reveal a weak antiferromagnetic coupling in the Fe(8)(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 Fe(III) 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. |
format | Online Article Text |
id | pubmed-7482229 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-74822292020-09-11 New Highly Charged Iron(III) Metal–Organic Cube Stabilized by a Bulky Amine Cruz, Carlos Vega Carvallo, Andrés Igor Spodine, Evgenia Escuer, Albert Marco, José F. Menéndez, Nieves Venegas-Yazigi, Diego Paredes-García, Verónica ACS Omega [Image: see text] In this work, we report a new octanuclear cluster based on Fe(III) and the ligand 1H-imidazole-4,5-dicarboxylic acid, [Et(3)NH](12)[Fe(8)(IDC)(12)]·10DMF·13H(2)O (1), with a metal core containing eight Fe(III) 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 {[Fe(8)(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 [Fe(8)(IDC)(12)](12–). Mössbauer spectra recorded at different temperatures show an isomer shift and quadrupole splitting parameters that confirm the existence of only Fe(III)-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 Fe(III) atoms located at the corners of the cube and connected by μ-1κ(2)N,O:2κ(2)N′,O‴-IDC(3–) bridges. Additionally, the magnetic measurements reveal a weak antiferromagnetic coupling in the Fe(8)(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 Fe(III) 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. American Chemical Society 2020-08-14 /pmc/articles/PMC7482229/ /pubmed/32923781 http://dx.doi.org/10.1021/acsomega.0c02420 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Cruz, Carlos Vega Carvallo, Andrés Igor Spodine, Evgenia Escuer, Albert Marco, José F. Menéndez, Nieves Venegas-Yazigi, Diego Paredes-García, Verónica New Highly Charged Iron(III) Metal–Organic Cube Stabilized by a Bulky Amine |
title | New Highly Charged Iron(III) Metal–Organic
Cube Stabilized by a Bulky Amine |
title_full | New Highly Charged Iron(III) Metal–Organic
Cube Stabilized by a Bulky Amine |
title_fullStr | New Highly Charged Iron(III) Metal–Organic
Cube Stabilized by a Bulky Amine |
title_full_unstemmed | New Highly Charged Iron(III) Metal–Organic
Cube Stabilized by a Bulky Amine |
title_short | New Highly Charged Iron(III) Metal–Organic
Cube Stabilized by a Bulky Amine |
title_sort | new highly charged iron(iii) metal–organic
cube stabilized by a bulky amine |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7482229/ https://www.ncbi.nlm.nih.gov/pubmed/32923781 http://dx.doi.org/10.1021/acsomega.0c02420 |
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