Syntheses, structures and magnetic properties of three dinuclear, one-dimensional and two-dimensional dysprosium(iii) complexes based on naphthalene diimide salicylic acid†
Jia-Ting Chen, Xiao-Man Kuang, You-Hong Li, Yun-Jing Zhong, Hui Zhang, Jia-Yin Su, Wen-Bin Chen and Wen Dong
{"title":"Syntheses, structures and magnetic properties of three dinuclear, one-dimensional and two-dimensional dysprosium(iii) complexes based on naphthalene diimide salicylic acid†","authors":"Jia-Ting Chen, Xiao-Man Kuang, You-Hong Li, Yun-Jing Zhong, Hui Zhang, Jia-Yin Su, Wen-Bin Chen and Wen Dong","doi":"10.1039/D4CE00751D","DOIUrl":null,"url":null,"abstract":"<p >Regulation of the complex structure is greatly significant for the preparation of single-molecule magnets (SMMs). In this work, a multidentate ligand of <em>N</em>,<em>N</em>′-bis(3-carboxy-4-hydroxyphenyl)-1,4,5,8-naphthalenetetradicarboximide (H<small><sub>4</sub></small>NDISA) has been synthesized and reacted with dysprosium(<small>III</small>) salt. By controlling the ratio of metal ions to the ligand and reaction temperature, three new dysprosium(<small>III</small>) complexes are obtained, namely, [Dy<small><sub>2</sub></small>(H<small><sub>2</sub></small>NDISA)<small><sub>3</sub></small>(DMF)<small><sub>3</sub></small>(H<small><sub>2</sub></small>O)<small><sub>10</sub></small>]·1.4DMF·2.6H<small><sub>2</sub></small>O (<strong>1</strong>), {[Dy(H<small><sub>2</sub></small>NDISA)<small><sub>1.5</sub></small>(DMF)(H<small><sub>2</sub></small>O)<small><sub>4</sub></small>]·3DMF·4H<small><sub>2</sub></small>O}<small><sub><em>n</em></sub></small> (<strong>2</strong>), and {[Dy(HNDISA)(H<small><sub>2</sub></small>O)<small><sub>2</sub></small>]·4H<small><sub>2</sub></small>O}<small><sub><em>n</em></sub></small> (<strong>3</strong>). Their structures are determined by single crystal X-ray diffraction. Crystallographic data demonstrate that complex <strong>1</strong> is a dinuclear dysprosium(<small>III</small>) complex linked by the bidentate ligand of H<small><sub>4</sub></small>NDISA. The intramolecular Dy(<small>III</small>)⋯Dy(<small>III</small>) distance is 23.0861(7) Å. In complex <strong>2</strong>, the carboxyl group in one of the ligands adopts a μ-η<small><sub>2</sub></small>:η<small><sub>1</sub></small> bridging mode to connect two Dy(<small>III</small>) ions, resulting in a Dy(<small>III</small>)⋯Dy(<small>III</small>) distance of 5.2611(5) Å. The other ligand adopts a tetradentate coordination mode to bridge two Dy(<small>III</small>) ions, forming an infinite one-dimensional chain structure along the <em>c</em> axis. Complex <strong>3</strong> displays a two-dimensional network structure. One carboxyl group in the ligand adopts a μ-η<small><sub>1</sub></small>:η<small><sub>1</sub></small> bridging mode growing along the <em>c</em> axis. Another carboxyl group in the ligand adopts a μ-η<small><sub>2</sub></small>:η<small><sub>1</sub></small> bridging mode. The shortest distance of Dy(<small>III</small>)⋯Dy(<small>III</small>) is 4.6138(5) Å. DC and alternating current (AC) magnetic susceptibilities of complexes <strong>1–3</strong> were measured. AC magnetic susceptibility measurements show that complexes <strong>1–3</strong> exhibit frequency-dependent ac susceptibilities.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CrystEngComm","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ce/d4ce00751d","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Regulation of the complex structure is greatly significant for the preparation of single-molecule magnets (SMMs). In this work, a multidentate ligand of N,N′-bis(3-carboxy-4-hydroxyphenyl)-1,4,5,8-naphthalenetetradicarboximide (H4NDISA) has been synthesized and reacted with dysprosium(III) salt. By controlling the ratio of metal ions to the ligand and reaction temperature, three new dysprosium(III) complexes are obtained, namely, [Dy2(H2NDISA)3(DMF)3(H2O)10]·1.4DMF·2.6H2O (1), {[Dy(H2NDISA)1.5(DMF)(H2O)4]·3DMF·4H2O}n (2), and {[Dy(HNDISA)(H2O)2]·4H2O}n (3). Their structures are determined by single crystal X-ray diffraction. Crystallographic data demonstrate that complex 1 is a dinuclear dysprosium(III) complex linked by the bidentate ligand of H4NDISA. The intramolecular Dy(III)⋯Dy(III) distance is 23.0861(7) Å. In complex 2, the carboxyl group in one of the ligands adopts a μ-η2:η1 bridging mode to connect two Dy(III) ions, resulting in a Dy(III)⋯Dy(III) distance of 5.2611(5) Å. The other ligand adopts a tetradentate coordination mode to bridge two Dy(III) ions, forming an infinite one-dimensional chain structure along the c axis. Complex 3 displays a two-dimensional network structure. One carboxyl group in the ligand adopts a μ-η1:η1 bridging mode growing along the c axis. Another carboxyl group in the ligand adopts a μ-η2:η1 bridging mode. The shortest distance of Dy(III)⋯Dy(III) is 4.6138(5) Å. DC and alternating current (AC) magnetic susceptibilities of complexes 1–3 were measured. AC magnetic susceptibility measurements show that complexes 1–3 exhibit frequency-dependent ac susceptibilities.