Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand
The reaction between the ((<i>E</i>)-<i>N</i>′-(2-hydroxy-3-methoxybenzylidene)pyrazine-2-carbohydrazide) (H<sub>2</sub>opch) ligand and the metallo-precursor [Dy(hfac)<sub>3</sub>]·2H<sub>2</sub>O led to the formation of an homometallic co...
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MDPI AG
2023-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/17/6359 |
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| author | Bertrand Lefeuvre Thierry Guizouarn Vincent Dorcet Marie Cordier Fabrice Pointillart |
| author_facet | Bertrand Lefeuvre Thierry Guizouarn Vincent Dorcet Marie Cordier Fabrice Pointillart |
| author_sort | Bertrand Lefeuvre |
| collection | DOAJ |
| description | The reaction between the ((<i>E</i>)-<i>N</i>′-(2-hydroxy-3-methoxybenzylidene)pyrazine-2-carbohydrazide) (H<sub>2</sub>opch) ligand and the metallo-precursor [Dy(hfac)<sub>3</sub>]·2H<sub>2</sub>O led to the formation of an homometallic coordination complex with the formula [Dy<sub>2</sub>(hfac)<sub>3</sub>(H<sub>2</sub>O)(Hopch)<sub>2</sub>][Dy(hfac)<sub>4</sub>] (<b>1</b>). In presence of both [Dy(hfac)<sub>3</sub>] 2H<sub>2</sub>O and the Fe(II) salt, the heterobimetallic tetranuclear [FeDy<sub>3</sub>(hfac)<sub>8</sub>(H<sub>2</sub>O)<sub>2</sub>(opch)<sub>2</sub>] (<b>2</b>) was isolated, while the addition of the co-ligand 1,2-Bis(2-hydroxy-3-methoxybenzylidene) hydrazine (H<sub>2</sub>bmh) led to the formation of two heterobimetallic tetranuclear complexes with the formula [Fe<sub>3</sub>Dy(hfac)<sub>6</sub>(opch)<sub>2</sub>(H<sub>2</sub>bmh)] C<sub>6</sub>H<sub>14</sub> (<b>3</b>) <b>C<sub>6</sub>H<sub>14</sub></b> and [Fe<sub>2</sub>Dy<sub>2</sub>(hfac)<sub>7</sub>(opch)<sub>2</sub>(H<sub>2</sub>bmh)] 0.5C<sub>7</sub>H<sub>16</sub> (<b>4</b>) <b>0.5C<sub>7</sub>H<sub>16</sub></b>. Single crystal X-ray diffraction and dc magnetic investigation demonstrated that <b>3</b> and <b>4</b> involved the iron center in the +II and +III oxidation states. Dynamic magnetic measurements highlighted the single-molecule magnet behavior of <b>1</b> and <b>2</b> in a zero applied dc field primarily due to the ferromagnetic interactions taking place in these compounds. |
| first_indexed | 2024-03-10T23:15:58Z |
| format | Article |
| id | doaj.art-00ac2c301ad6457db169431ce2d9615f |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T23:15:58Z |
| publishDate | 2023-08-01 |
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| spelling | doaj.art-00ac2c301ad6457db169431ce2d9615f2023-11-19T08:34:52ZengMDPI AGMolecules1420-30492023-08-012817635910.3390/molecules28176359Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone LigandBertrand Lefeuvre0Thierry Guizouarn1Vincent Dorcet2Marie Cordier3Fabrice Pointillart4CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, University of Rennes, 35000 Rennes, FranceCNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, University of Rennes, 35000 Rennes, FranceCNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, University of Rennes, 35000 Rennes, FranceCNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, University of Rennes, 35000 Rennes, FranceCNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, University of Rennes, 35000 Rennes, FranceThe reaction between the ((<i>E</i>)-<i>N</i>′-(2-hydroxy-3-methoxybenzylidene)pyrazine-2-carbohydrazide) (H<sub>2</sub>opch) ligand and the metallo-precursor [Dy(hfac)<sub>3</sub>]·2H<sub>2</sub>O led to the formation of an homometallic coordination complex with the formula [Dy<sub>2</sub>(hfac)<sub>3</sub>(H<sub>2</sub>O)(Hopch)<sub>2</sub>][Dy(hfac)<sub>4</sub>] (<b>1</b>). In presence of both [Dy(hfac)<sub>3</sub>] 2H<sub>2</sub>O and the Fe(II) salt, the heterobimetallic tetranuclear [FeDy<sub>3</sub>(hfac)<sub>8</sub>(H<sub>2</sub>O)<sub>2</sub>(opch)<sub>2</sub>] (<b>2</b>) was isolated, while the addition of the co-ligand 1,2-Bis(2-hydroxy-3-methoxybenzylidene) hydrazine (H<sub>2</sub>bmh) led to the formation of two heterobimetallic tetranuclear complexes with the formula [Fe<sub>3</sub>Dy(hfac)<sub>6</sub>(opch)<sub>2</sub>(H<sub>2</sub>bmh)] C<sub>6</sub>H<sub>14</sub> (<b>3</b>) <b>C<sub>6</sub>H<sub>14</sub></b> and [Fe<sub>2</sub>Dy<sub>2</sub>(hfac)<sub>7</sub>(opch)<sub>2</sub>(H<sub>2</sub>bmh)] 0.5C<sub>7</sub>H<sub>16</sub> (<b>4</b>) <b>0.5C<sub>7</sub>H<sub>16</sub></b>. Single crystal X-ray diffraction and dc magnetic investigation demonstrated that <b>3</b> and <b>4</b> involved the iron center in the +II and +III oxidation states. Dynamic magnetic measurements highlighted the single-molecule magnet behavior of <b>1</b> and <b>2</b> in a zero applied dc field primarily due to the ferromagnetic interactions taking place in these compounds.https://www.mdpi.com/1420-3049/28/17/6359dysprosiumironhydrazonehydrazinesingle-molecule magnet |
| spellingShingle | Bertrand Lefeuvre Thierry Guizouarn Vincent Dorcet Marie Cordier Fabrice Pointillart Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand Molecules dysprosium iron hydrazone hydrazine single-molecule magnet |
| title | Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand |
| title_full | Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand |
| title_fullStr | Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand |
| title_full_unstemmed | Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand |
| title_short | Single-Molecule Magnet Properties in 3<i>d</i>4<i>f</i> Heterobimetallic Iron and Dysprosium Complexes Involving Hydrazone Ligand |
| title_sort | single molecule magnet properties in 3 i d i 4 i f i heterobimetallic iron and dysprosium complexes involving hydrazone ligand |
| topic | dysprosium iron hydrazone hydrazine single-molecule magnet |
| url | https://www.mdpi.com/1420-3049/28/17/6359 |
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