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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Synthesis, structure and properties of lanthanide-Organic frameworks with imidazolylmethylisophthalate ligands
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Synthesis, structure and properties of lanthanide-Organic frameworks with imidazolylmethylisophthalate ligands

机译:咪唑基甲基间苯二甲酸甲酯配体的镧系元素-有机骨架的合成,结构和性能

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摘要

Three new lanthanide-organic frameworks {[Ln(L)(OClO~3)(H ~2O)].0.5H~2O}~n [Ln=Sm (1), Eu (2), Er (3)] have been prepared by hydrothermal reactions of the corresponding lanthanide oxide (Ln~2O~3), silver perchlorate (AgClO~4) and 5-(imidazol-1-ylmethyl)isophthalic acid. The complexes have been characterized by single-crystal and powder X-ray diffraction, IR spectroscopy, and elemental analyses. In 1-3, the metal centers are eight-coordinated to show polyhedral coordination geometries with an LnO~8 donor set. The imidazolyl groups are free of coordination, and the perchlorate and carboxylate groups bridge the Ln~(3+) cations leading to the formation of wave-like layer structures containing metal-chains. The fluorescence properties of complex 2 were investigated.
机译:三个新的镧系元素有机框架{[Ln(L)(OC10〜3)(H〜2O).0.5H〜2O}〜n [Ln = Sm(1),Eu(2),Er(3)]具有通过相应的镧系元素氧化物(Ln〜2O〜3),高氯酸银(AgClO〜4)和5-(咪唑-1-基甲基)间苯二甲酸的水热反应制备了氯丁酸酯。该复合物已通过单晶和粉末X射线衍射,红外光谱和元素分析进行​​了表征。在1-3中,金属中心是八坐标的,以显示具有LnO〜8供体组的多面体配位几何。咪唑基没有配位,高氯酸根和羧酸根桥连Ln〜(3+)阳离子,导致形成包含金属链的波状层结构。研究了配合物2的荧光性质。

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