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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Two hybrid lanthanide complexes exhibiting a large magnetocaloric effect and slow magnetic relaxation
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Two hybrid lanthanide complexes exhibiting a large magnetocaloric effect and slow magnetic relaxation

机译：两种杂种镧系有大量磁热效应和缓慢磁性松弛

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摘要

Two isostructural lanthanide (Ln) hybrid complexes co-bridged by organic oxalate and inorganic hypophosphite, [Ln(oxa)(H2PO2)(H2O)(2)] (oxa = oxalate; Ln = Gd (1), Dy (2)), were solvothermally prepared with the goal of elucidating the role of a hybrid framework in the generation of novel molecular magnetic materials. The title compounds feature a two dimensional (2D) hybrid layer. The Ln(III) ions are octacoordinated with distorted square antiprism geometry. The adjacent LnIII ions are co-bridged by hypophosphite and one type of oxalate ligand to form 1D hybrid chains, which are further linked by a second type of oxalate ligand to generate the resulting 2D framework. Magnetic investigations reveal that compound 1 features a large magnetocaloric effect with -Delta S-m(max) = 46.60 J kg(-1) K-1 (134.39 mJ cm(-3) K-1), due to the combined advantages of organic oxalate and inorganic hypophosphite ligands, while compound 2 displays slow magnetic relaxation.
机译：由有机草酸盐和无机次磷酸酯共桥接的两种硅藻土（LN）杂合络合物，[LN（OXA）（H2PO2）（H 2 O）（2）]（OXA =草酸盐; LN = GD（1），DY（2）） ，在阐明了杂种框架在新型分子磁性材料的产生中的目的的目的是溶于溶剂。 标题化合物具有二维（2D）混合层。 LN（III）离子是八元逆转几何形状的八元化。 相邻的LNIII离子通过次磷酸酯和一种类型的草酸盐配体共桥，以形成1D杂交链，其通过第二种草酸盐配体进一步连接以产生所得的2D框架。 磁性研究表明，由于有机草酸盐的组合优势，化合物1具有较大的磁热效应与-Delta SM（MAX）= 46.60J kg（-1）k-1（-1）k-1），（134.39 mJ（-3）k-1）。 和无机次磷酸盐配体，而化合物2显示缓慢磁性松弛。

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