Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores
The two achiral ligands tris(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)methanol ((mim)<sub>3</sub>COH) and bis(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)(3-methylpyridin-<i>2</i>-yl)methanol ((mim)<sub>2</sub>(mpy)COH) f...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/8/9/95 |
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| author | Marco Seifried Frieda M. Kapsamer Michael Reissner Jan M. Welch Gerald Giester Danny Müller Peter Weinberger |
| author_facet | Marco Seifried Frieda M. Kapsamer Michael Reissner Jan M. Welch Gerald Giester Danny Müller Peter Weinberger |
| author_sort | Marco Seifried |
| collection | DOAJ |
| description | The two achiral ligands tris(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)methanol ((mim)<sub>3</sub>COH) and bis(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)(3-methylpyridin-<i>2</i>-yl)methanol ((mim)<sub>2</sub>(mpy)COH) form on reaction with Fe(BF<sub>4</sub>)<sub>2</sub>∙6H<sub>2</sub>O, the octahedral low-spin complexes [Fe((mim)<sub>3</sub>COH)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>∙MeCN (<b>1</b>) and [Fe((mim)<sub>2</sub>(mpy)COH)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>∙0.5MeCN (<b>2</b>). Both octahedral complexes immediately rearrange to the chiral [Fe<sub>4</sub>O<sub>4</sub>]-cubane clusters [Fe<sub>4</sub>(mim)<sub>3</sub>CO)<sub>4</sub>](BF<sub>4</sub>)<sub>4</sub> (<b>3</b>) and [Fe<sub>4</sub>(mim)<sub>3</sub>CO)<sub>4</sub>](BF<sub>4</sub>)<sub>4</sub>∙CHCl<sub>3</sub> (<b>4</b>), whereas the highly symmetrical <b>3</b> crystallizes as racemate, <b>4</b> resolves based on the asymmetry introduced by the 2-methylpyridine moiety and crystallizes as an enantiomerically pure sample. Both clusters feature redox active [Fe<sub>4</sub>O<sub>4</sub>]-cubane cores with up to four individual accessible states, which directs towards a potential application as electron-shuttle. |
| first_indexed | 2024-03-09T23:20:56Z |
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| id | doaj.art-e04ddaff7eed4a9c89dae5801a3e5208 |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-09T23:20:56Z |
| publishDate | 2022-08-01 |
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| series | Magnetochemistry |
| spelling | doaj.art-e04ddaff7eed4a9c89dae5801a3e52082023-11-23T17:27:47ZengMDPI AGMagnetochemistry2312-74812022-08-01899510.3390/magnetochemistry8090095Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active CoresMarco Seifried0Frieda M. Kapsamer1Michael Reissner2Jan M. Welch3Gerald Giester4Danny Müller5Peter Weinberger6Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-01-3, 1060 Vienna, AustriaInstitute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-01-3, 1060 Vienna, AustriaInstitute of Solid State Physics, TU Wien, Wiedner Hauptstraße 8-10/050, 1040 Vienna, AustriaCenter for Labelling and Isotope Production, TRIGA Center Atominstitut, TU Wien, Stadionallee 2, 1020 Vienna, AustriaDepartment of Mineralogy and Crystallography, University of Vienna, Josef-Holaubek-Platz 2 (UZA 2), 1090 Vienna, AustriaInstitute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-01-3, 1060 Vienna, AustriaInstitute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-01-3, 1060 Vienna, AustriaThe two achiral ligands tris(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)methanol ((mim)<sub>3</sub>COH) and bis(1-methyl-<i>1H</i>-imidazol-<i>2</i>-yl)(3-methylpyridin-<i>2</i>-yl)methanol ((mim)<sub>2</sub>(mpy)COH) form on reaction with Fe(BF<sub>4</sub>)<sub>2</sub>∙6H<sub>2</sub>O, the octahedral low-spin complexes [Fe((mim)<sub>3</sub>COH)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>∙MeCN (<b>1</b>) and [Fe((mim)<sub>2</sub>(mpy)COH)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>∙0.5MeCN (<b>2</b>). Both octahedral complexes immediately rearrange to the chiral [Fe<sub>4</sub>O<sub>4</sub>]-cubane clusters [Fe<sub>4</sub>(mim)<sub>3</sub>CO)<sub>4</sub>](BF<sub>4</sub>)<sub>4</sub> (<b>3</b>) and [Fe<sub>4</sub>(mim)<sub>3</sub>CO)<sub>4</sub>](BF<sub>4</sub>)<sub>4</sub>∙CHCl<sub>3</sub> (<b>4</b>), whereas the highly symmetrical <b>3</b> crystallizes as racemate, <b>4</b> resolves based on the asymmetry introduced by the 2-methylpyridine moiety and crystallizes as an enantiomerically pure sample. Both clusters feature redox active [Fe<sub>4</sub>O<sub>4</sub>]-cubane cores with up to four individual accessible states, which directs towards a potential application as electron-shuttle.https://www.mdpi.com/2312-7481/8/9/95[Fe<sub>4</sub>O<sub>4</sub>]-cubane core clustermagnetic propertieselectrochemistryimidazoles |
| spellingShingle | Marco Seifried Frieda M. Kapsamer Michael Reissner Jan M. Welch Gerald Giester Danny Müller Peter Weinberger Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores Magnetochemistry [Fe<sub>4</sub>O<sub>4</sub>]-cubane core cluster magnetic properties electrochemistry imidazoles |
| title | Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores |
| title_full | Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores |
| title_fullStr | Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores |
| title_full_unstemmed | Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores |
| title_short | Solvothermal One-Pot Synthesis of a New Family of Chiral [Fe<sub>4</sub>O<sub>4</sub>]-Cubane Clusters with Redox Active Cores |
| title_sort | solvothermal one pot synthesis of a new family of chiral fe sub 4 sub o sub 4 sub cubane clusters with redox active cores |
| topic | [Fe<sub>4</sub>O<sub>4</sub>]-cubane core cluster magnetic properties electrochemistry imidazoles |
| url | https://www.mdpi.com/2312-7481/8/9/95 |
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