[Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps
A cubane-like complex dianion [Tb<sub>4</sub>(OH)<sub>4</sub>(tfa)<sub>6</sub>(hfac)<sub>4</sub>]<sup>2−</sup> was synthesized, accompanied by two counter cations of [Ni(hfac)(2pyIN)<sub>2</sub>]<sup>+</sup>, where H...
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MDPI AG
2022-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/3/402 |
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| author | Yoshiki Yamaguchi Takayuki Ishida |
| author_facet | Yoshiki Yamaguchi Takayuki Ishida |
| author_sort | Yoshiki Yamaguchi |
| collection | DOAJ |
| description | A cubane-like complex dianion [Tb<sub>4</sub>(OH)<sub>4</sub>(tfa)<sub>6</sub>(hfac)<sub>4</sub>]<sup>2−</sup> was synthesized, accompanied by two counter cations of [Ni(hfac)(2pyIN)<sub>2</sub>]<sup>+</sup>, where Htfa, Hhfac, and 2pyIN stand for trifluoroacetic acid, 1,1,1,5,5,5-hexafluoropentane-2,4-dione, and 4,4,5,5-tetramethyl-2-pyridylimidazolin-1-oxyl, respectively. In the complex anion, each Tb ion was capped with hfac, and each Tb···Tb diagonal was bridged with tfa, thus forming an approximate <i>Td</i> symmetry, though the whole molecular formula was crystallographically independent in an orthorhombic <i>Pbca</i> space group. The ionic charge was −2 in total. The magnetic study revealed that the complex ions were magnetically isolated from each other. Practically no 4f–4f superexchange interaction was operative, while the 2p–3d ferromagnetic coupling seemed to be appreciable, as anticipated from the proposed magnetostructural relationship. |
| first_indexed | 2024-03-09T19:58:13Z |
| format | Article |
| id | doaj.art-9a712a0b693c46b5b874f5cce3708693 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T19:58:13Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-9a712a0b693c46b5b874f5cce37086932023-11-24T00:52:13ZengMDPI AGCrystals2073-43522022-03-0112340210.3390/cryst12030402[Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate CapsYoshiki Yamaguchi0Takayuki Ishida1Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, JapanDepartment of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, JapanA cubane-like complex dianion [Tb<sub>4</sub>(OH)<sub>4</sub>(tfa)<sub>6</sub>(hfac)<sub>4</sub>]<sup>2−</sup> was synthesized, accompanied by two counter cations of [Ni(hfac)(2pyIN)<sub>2</sub>]<sup>+</sup>, where Htfa, Hhfac, and 2pyIN stand for trifluoroacetic acid, 1,1,1,5,5,5-hexafluoropentane-2,4-dione, and 4,4,5,5-tetramethyl-2-pyridylimidazolin-1-oxyl, respectively. In the complex anion, each Tb ion was capped with hfac, and each Tb···Tb diagonal was bridged with tfa, thus forming an approximate <i>Td</i> symmetry, though the whole molecular formula was crystallographically independent in an orthorhombic <i>Pbca</i> space group. The ionic charge was −2 in total. The magnetic study revealed that the complex ions were magnetically isolated from each other. Practically no 4f–4f superexchange interaction was operative, while the 2p–3d ferromagnetic coupling seemed to be appreciable, as anticipated from the proposed magnetostructural relationship.https://www.mdpi.com/2073-4352/12/3/402rare earth metallanthanidelanthanoidmolecular magnetismmagnetic propertiesferromagnetic coupling |
| spellingShingle | Yoshiki Yamaguchi Takayuki Ishida [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps Crystals rare earth metal lanthanide lanthanoid molecular magnetism magnetic properties ferromagnetic coupling |
| title | [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps |
| title_full | [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps |
| title_fullStr | [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps |
| title_full_unstemmed | [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps |
| title_short | [Tb<sub>4</sub>(OH)<sub>4</sub>]-Cuboid Complex Dianion Stabilized with Six Carboxylate Bridges and Four Diketonate Caps |
| title_sort | tb sub 4 sub oh sub 4 sub cuboid complex dianion stabilized with six carboxylate bridges and four diketonate caps |
| topic | rare earth metal lanthanide lanthanoid molecular magnetism magnetic properties ferromagnetic coupling |
| url | https://www.mdpi.com/2073-4352/12/3/402 |
| work_keys_str_mv | AT yoshikiyamaguchi tbsub4subohsub4subcuboidcomplexdianionstabilizedwithsixcarboxylatebridgesandfourdiketonatecaps AT takayukiishida tbsub4subohsub4subcuboidcomplexdianionstabilizedwithsixcarboxylatebridgesandfourdiketonatecaps |