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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Functionalized phosphonates as building units for multi-dimensional homo- and heterometallic 3d-4f inorganic-organic hybrid-materials
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Functionalized phosphonates as building units for multi-dimensional homo- and heterometallic 3d-4f inorganic-organic hybrid-materials

机译：功能化膦酸酯作为多维均质和杂金属3d-4f无机-有机杂化材料的构建单元

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摘要

Using the multifunctional ligand H4L (2,2'-bipyridinyl-5,5'-diphosphonic acid), a new family of inorganicorganic hybrid-materials was prepared. The ligand shows a very high flexibility regarding the coordination mode, leading to a large structural diversity. The compounds 1a, 1b ([M(H2L)(H2O)(4)]center dot 2.5H(2)O; M = Co2+ (a), Ni2+ (b)), 2 ([Gd-2(H2H'L)(2)(H2H'L-2)(H2O)(6)]Cl-4 center dot 14H(2)O), 3a, 3b, 3c ([MCo(III)(H2L)(3)(H2O)(2)]center dot 6.5H(2)O; M = Gd3+ (a), Dy3+ (b) and Tb3+ (c)), and 4 ([GdNi(II)(H2L)(3)(H2O)(3)] NaCl center dot 6H(2)O) were isolated and characterized with single crystal X-ray diffraction. Depending on the used metal ions and on the stoichiometry, either discrete entities (0D), extended 2D layers or 3D frameworks were obtained. In contrast to the general approach in phosphonate chemistry, the compounds were prepared without hydrothermal synthesis, but under ambient pressure. Variable temperature magnetic measurements were carried out to determine the magnetic properties.
机译：使用多功能配体H4L（2,2'-联吡啶基-5,5'-二膦酸），制备了新的无机有机杂化材料家族。配体在配位方式上显示出很高的灵活性，从而导致很大的结构多样性。化合物1a，1b（[M（H2L）（H2O）（4）]中心点2.5H（2）O; M = Co2 +（a），Ni2 +（b）），2（[Gd-2（H2H'L ）（2）（H2H'L-2）（H2O）（6）] Cl-4中心点14H（2）O），3a，3b，3c（[MCo（III）（H2L）（3）（H2O） （2）]中心点6.5H（2）O; M = Gd3 +（a），Dy3 +（b）和Tb3 +（c））和4（[GdNi（II）（H2L）（3）（H2O）（3 ）]分离NaCl中心点6H（2）O）并通过单晶X射线衍射进行表征。根据所使用的金属离子和化学计量，可以获得离散实体（0D），扩展的2D层或3D骨架。与膦酸酯化学中的常规方法相比，该化合物无需水热合成，而是在环境压力下制备。进行可变温度的磁性测量以确定磁性。

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