Ting-Hung Chu , Wen-Qi Zeng , Li-Wei Cheng , Jason D. Braun , David E. Herbert , Po-Heng Lin
{"title":"探索三种六核镝(III)配合物的结构变化和磁性能，展示单分子磁学行为","authors":"Ting-Hung Chu , Wen-Qi Zeng , Li-Wei Cheng , Jason D. Braun , David E. Herbert , Po-Heng Lin","doi":"10.1016/j.poly.2024.117189","DOIUrl":null,"url":null,"abstract":"<div><p>Three novel hexanuclear Dy<sup>III</sup> complexes supported by polyhydroxy Schiff-base ligands, [Dy<sub>6</sub>(hmc)<sub>3</sub>(<em>μ</em>-acac)<sub>2</sub>(acac)<sub>3</sub>(<em>μ</em><sub>3</sub>-OH)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>]·2MeCN (<strong>1</strong>·2MeCN), [Dy<sub>6</sub>K<sub>2</sub>(hmc)<sub>3</sub>(<em>μ</em>-CO<sub>3</sub>)<sub>6</sub>(<em>μ</em><sub>3</sub>-CO<sub>3</sub>)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>]·8MeOH (<strong>2</strong>·8MeOH) and [Dy<sub>6</sub>(hmc)<sub>3</sub>(<em>μ</em>-OAc)<sub>6</sub>(<em>μ</em><sub>3</sub>-OH)<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>] (<strong>3</strong>) (H<sub>3</sub>hmc: 1,5-bis(2-hydroxy-3-methoxybenzylidene)carbonhydrazide), have been prepared and structurally characterized by single-crystal X-ray diffraction, elemental analysis, and IR spectroscopy. Each of the hexanuclear complexes is constructed from triangular Dy<sub>3</sub> building blocks, with the six Dy<sup>III</sup> ions are arranged in three different conformations. The magnetic properties of three dinuclear Dy<sup>III</sup> complexes have also been investigated (Fig. S2). The frequency-dependent ac susceptibility is indicative of Single-Molecule Magnet behavior without and/or with optimum dc field for complexes <strong>2</strong> and <strong>3</strong>.</p></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"263 ","pages":"Article 117189"},"PeriodicalIF":2.4000,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring the structural variations and magnetic properties of three hexanuclear dysprosium(III) complexes exhibiting single-molecule magnetism behavior\",\"authors\":\"Ting-Hung Chu , Wen-Qi Zeng , Li-Wei Cheng , Jason D. Braun , David E. Herbert , Po-Heng Lin\",\"doi\":\"10.1016/j.poly.2024.117189\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Three novel hexanuclear Dy<sup>III</sup> complexes supported by polyhydroxy Schiff-base ligands, [Dy<sub>6</sub>(hmc)<sub>3</sub>(<em>μ</em>-acac)<sub>2</sub>(acac)<sub>3</sub>(<em>μ</em><sub>3</sub>-OH)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>]·2MeCN (<strong>1</strong>·2MeCN), [Dy<sub>6</sub>K<sub>2</sub>(hmc)<sub>3</sub>(<em>μ</em>-CO<sub>3</sub>)<sub>6</sub>(<em>μ</em><sub>3</sub>-CO<sub>3</sub>)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>]·8MeOH (<strong>2</strong>·8MeOH) and [Dy<sub>6</sub>(hmc)<sub>3</sub>(<em>μ</em>-OAc)<sub>6</sub>(<em>μ</em><sub>3</sub>-OH)<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>] (<strong>3</strong>) (H<sub>3</sub>hmc: 1,5-bis(2-hydroxy-3-methoxybenzylidene)carbonhydrazide), have been prepared and structurally characterized by single-crystal X-ray diffraction, elemental analysis, and IR spectroscopy. Each of the hexanuclear complexes is constructed from triangular Dy<sub>3</sub> building blocks, with the six Dy<sup>III</sup> ions are arranged in three different conformations. The magnetic properties of three dinuclear Dy<sup>III</sup> complexes have also been investigated (Fig. S2). The frequency-dependent ac susceptibility is indicative of Single-Molecule Magnet behavior without and/or with optimum dc field for complexes <strong>2</strong> and <strong>3</strong>.</p></div>\",\"PeriodicalId\":20278,\"journal\":{\"name\":\"Polyhedron\",\"volume\":\"263 \",\"pages\":\"Article 117189\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-08-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polyhedron\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0277538724003656\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polyhedron","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0277538724003656","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Exploring the structural variations and magnetic properties of three hexanuclear dysprosium(III) complexes exhibiting single-molecule magnetism behavior
Three novel hexanuclear DyIII complexes supported by polyhydroxy Schiff-base ligands, [Dy6(hmc)3(μ-acac)2(acac)3(μ3-OH)4(H2O)2]·2MeCN (1·2MeCN), [Dy6K2(hmc)3(μ-CO3)6(μ3-CO3)4(H2O)2]·8MeOH (2·8MeOH) and [Dy6(hmc)3(μ-OAc)6(μ3-OH)3(H2O)3] (3) (H3hmc: 1,5-bis(2-hydroxy-3-methoxybenzylidene)carbonhydrazide), have been prepared and structurally characterized by single-crystal X-ray diffraction, elemental analysis, and IR spectroscopy. Each of the hexanuclear complexes is constructed from triangular Dy3 building blocks, with the six DyIII ions are arranged in three different conformations. The magnetic properties of three dinuclear DyIII complexes have also been investigated (Fig. S2). The frequency-dependent ac susceptibility is indicative of Single-Molecule Magnet behavior without and/or with optimum dc field for complexes 2 and 3.
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Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry.
Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.
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