Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains
Four new cyano-bridged Dy<sup>III</sup>-Cr<sup>III</sup>, Dy<sup>III</sup>-Fe<sup>III</sup>, Ho<sup>III</sup>-Cr<sup>III</sup> and Ho<sup>III</sup>-Fe<sup>III</sup> bimetallic coordination polymers were s...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/10/4/41 |
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| author | Valentina D. Sasnovskaya Leokadiya V. Zorina Sergey V. Simonov Artem D. Talantsev Eduard B. Yagubskii |
| author_facet | Valentina D. Sasnovskaya Leokadiya V. Zorina Sergey V. Simonov Artem D. Talantsev Eduard B. Yagubskii |
| author_sort | Valentina D. Sasnovskaya |
| collection | DOAJ |
| description | Four new cyano-bridged Dy<sup>III</sup>-Cr<sup>III</sup>, Dy<sup>III</sup>-Fe<sup>III</sup>, Ho<sup>III</sup>-Cr<sup>III</sup> and Ho<sup>III</sup>-Fe<sup>III</sup> bimetallic coordination polymers were synthesized by the reaction of [Ln(H<sub>2</sub>dapsc)(H<sub>2</sub>O)<sub>4</sub>](NO<sub>3</sub>)<sub>3</sub> (Ln = Dy, Ho); H<sub>2</sub>dapsc = 2,6-diacetylpyridinebis(semicarbazone)) with K<sub>3</sub>[M(CN)<sub>6</sub>] (M = Cr, Fe) in H<sub>2</sub>O, resulting in the substitution of two water molecules in the coordination sphere of rare earth by paramagnetic tricharged hexacyanides of Fe and Cr. The complexes are isostructural and consist of alternating [Ln(H<sub>2</sub>dapsc)(H<sub>2</sub>O)<sub>2</sub>]<sup>3+</sup> and [M(CN)<sub>6</sub>]<sup>3−</sup> units linked by bridges of two <i>cis</i>-cyano ligands of the anion to form square-wave chains. The ac magnetic measurements revealed that the DyCr and DyFe complexes are field-induced single molecule magnets, while their Ho analogs do not exhibit slow magnetic relaxation. |
| first_indexed | 2024-03-09T04:33:37Z |
| format | Article |
| id | doaj.art-1cdb31cec083410090bd331419c30247 |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-09T04:33:37Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-1cdb31cec083410090bd331419c302472023-12-03T13:31:26ZengMDPI AGInorganics2304-67402022-03-011044110.3390/inorganics10040041Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the ChainsValentina D. Sasnovskaya0Leokadiya V. Zorina1Sergey V. Simonov2Artem D. Talantsev3Eduard B. Yagubskii4Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, RussiaInstitute of Solid State Physics RAS, 142432 Chernogolovka, RussiaInstitute of Solid State Physics RAS, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics RAS, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics RAS, 142432 Chernogolovka, RussiaFour new cyano-bridged Dy<sup>III</sup>-Cr<sup>III</sup>, Dy<sup>III</sup>-Fe<sup>III</sup>, Ho<sup>III</sup>-Cr<sup>III</sup> and Ho<sup>III</sup>-Fe<sup>III</sup> bimetallic coordination polymers were synthesized by the reaction of [Ln(H<sub>2</sub>dapsc)(H<sub>2</sub>O)<sub>4</sub>](NO<sub>3</sub>)<sub>3</sub> (Ln = Dy, Ho); H<sub>2</sub>dapsc = 2,6-diacetylpyridinebis(semicarbazone)) with K<sub>3</sub>[M(CN)<sub>6</sub>] (M = Cr, Fe) in H<sub>2</sub>O, resulting in the substitution of two water molecules in the coordination sphere of rare earth by paramagnetic tricharged hexacyanides of Fe and Cr. The complexes are isostructural and consist of alternating [Ln(H<sub>2</sub>dapsc)(H<sub>2</sub>O)<sub>2</sub>]<sup>3+</sup> and [M(CN)<sub>6</sub>]<sup>3−</sup> units linked by bridges of two <i>cis</i>-cyano ligands of the anion to form square-wave chains. The ac magnetic measurements revealed that the DyCr and DyFe complexes are field-induced single molecule magnets, while their Ho analogs do not exhibit slow magnetic relaxation.https://www.mdpi.com/2304-6740/10/4/41field-induced single-molecular magnetsnine-coordinate complexesLn(III) complexesH<sub>2</sub>dapsc ligandcrystal structuredc and ac magnetic properties |
| spellingShingle | Valentina D. Sasnovskaya Leokadiya V. Zorina Sergey V. Simonov Artem D. Talantsev Eduard B. Yagubskii Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains Inorganics field-induced single-molecular magnets nine-coordinate complexes Ln(III) complexes H<sub>2</sub>dapsc ligand crystal structure dc and ac magnetic properties |
| title | Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains |
| title_full | Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains |
| title_fullStr | Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains |
| title_full_unstemmed | Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains |
| title_short | Cyano-Bridged Dy(III) and Ho(III) Complexes with Square-Wave Structure of the Chains |
| title_sort | cyano bridged dy iii and ho iii complexes with square wave structure of the chains |
| topic | field-induced single-molecular magnets nine-coordinate complexes Ln(III) complexes H<sub>2</sub>dapsc ligand crystal structure dc and ac magnetic properties |
| url | https://www.mdpi.com/2304-6740/10/4/41 |
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