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以2,5-二羟基-1,4-对苯二甲酸为配体的稀土配合物的合成、晶体结构和磁学性质 预览

Synthesis, crystal structures and magnetic properties of rare earth polymers with 2, 5-dihydroxy-1, 4-terephthalic acid as ligand
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摘要 以2,5-二羟基-1,4-对苯二甲酸(H4DHBDC)和Ln(NO3)3·6H2O(Ln=Dy,Tb)为原料,通过溶剂热反应得到了两个新的配合物{[Ln2(H2-DHBDC)3(DMF)4]}n(Ln=Dy(1),Tb(2))。通过单晶X射线衍射、红外光谱、热重分析和粉末X射线衍射对配合物进行了表征。结果表明,配合物1和2是完全同构的化合物,结晶于三斜空间群P-1中。配合物的次级结构单元中含有2个中心离子、6个去质子的配体和4个N,N-二甲基甲酰胺分子,并进一步通过周围的羧酸根基团以两种不同的桥连模式,形成了三维框架结构。磁性测试结果表明,配合物1在80 kA/m外加直流场条件下具有慢磁弛豫性质。 Two new types of complexes, {[Ln2(H2-DHBDC)3(DMF)4]}n(Ln=Dy(1),Tb(2)) were obtained by solvothermal reaction using 2,5-dihydroxy-1,4-terephthalic acid(H4DHBDC) and Ln(NO3)3·6 H2O(Ln=Dy, Tb) as raw materials. The complexes were characterized by single crystal X-ray diffraction method, Fourier transform infrared spectroscopy, thermogravimetric analysis and powder X-ray diffraction method. The results show that the two complexes were completely isomorphous compound and crystallized in the triclinic system, space group P-1. The secondary building unit of the two compounds consist of two metal ions, three deprotonated ligands and four N, N-Dimethylformamide molecules. And three dimensional frame structure was further formed through the surrounding carboxylic acid groups with two different carboxylic bridging modes. Studies on the magnetic properties show that the complex exhibited slow magnetic relaxation behaviors.
作者 谷兴业 崔瑞琪 吕薇 杨燕 佘世雄 GU Xingye;CUI Ruiqi;LYU Wei;YANG Yan;SHE Shixiong(College of Chemical Engineering,Qinghai University,Xining 810016,China)
出处 《功能材料》 EI CAS CSCD 北大核心 2019年第3期3101-3106,共6页 Journal of Functional Materials
基金 国家自然科学基金资助项目(21461021) 青海省自然科学基金青年基金资助项目(2014-ZJ-940Q).
关键词 2 5-二羟基-1 4-对苯二甲酸 溶剂热反应 晶体结构 磁性 慢磁豫现象 2,5-dihydroxy-1,4-terephthalic acid solvothermal reaction crystal structure magnetic properties slow magnetic relaxation
作者简介 通讯作者:佘世雄,E-mail:shesx217@163.com;谷兴业(1993-),男,山东济宁人,在读硕士,师承佘世雄副教授,从事金属有机框架材料研究。
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  • 1王继业 宋会花 杨芳 石士考.均苯三甲酸铕及铕镧配合物的合成及荧光性质.发光学报,2009,30(2):1-1. 被引量:2
  • 2Wang C G, Xing Y H, Li Z P, et al. A series of three Dimensional Lanthanide Rigid Flexible Frameworks:Synthesis, Structure and Fluorescent Properties of Coordination Polymers with 2,5-Pyridine Dicarboxylic Acid and Adipic Acid[ J ]. Cryst. Growth Des,2009,9:1525. 被引量:1
  • 3Tian L, Ren N, Zhang J J, et al. Synthesis, Crystal Structure, Luminescence and Thermal Decomposition Kinetics of Eu(IIl) Complex with 2,4-Dichloro- benzoic acid and 2,2"-Bipyridine. Inorg[ J ]. Chim. Acta ,2009,362 (9) :3388. 被引量:1
  • 4Wang Z W, Ji C C, Li J, ct al. Synthesis, X-ray Structures, and Fluorescent Properties of Coordination Networks Constructed from 2-(2- Pyridinyl-benzimidazolyl) Acetic Anion[ J]. Cryst. Growth Des ,2009,9 ( 1 ) :475. 被引量:1
  • 5Ling J X, Li B, Jiang S, et al. Luminescent Properties of Organic-inorganic Hybrid Monoliths Containing Rare-earth Complexes [ J ]. J. Non- Cryst Solids ,2000,275( 1 ) :52. 被引量:1
  • 6Shen Z H, Xu D F, Cheng N N, et al. Synthesis and Biological Activity of some Lanthanide Ternary Complexes [ J ]. Journal of Coordination Chemistry, 2011,44 ( 13 ) : 2342. 被引量:1
  • 7Wang Z W, Ji C C, Li J, et al. Synthesis, X-ray Structures and Fluorescent Properties of Coordination Networks Constructed from 2-(2-Pyridinyl- benzimidazolyl) Acetic Anion[ J]. Cryst. Growth Des,2009,9( 1 ) :475-482. 被引量:1
  • 8Sheldrick G M. SHELX-97[CP].Gttingen:University of G~ttingen. 1997. 被引量:1
  • 9Jiang Z Q, Jiang J Y, Hou D C, et al. Urothermal Synthesis of Photoluminescent Lanthanide-organic Frameworks with Unusual Topologies[ J ]. Cryst. Eng. Comm. ,2013,15:315. 被引量:1
  • 10Leuenberger, M. N.; Loss, D. Nature 2001, 410, 789. 被引量:1

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