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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >A Two-dimensional Rare Earth Metal-Organic Polymer [Pr_2 (csph)_2 (H_2 O)_4]6H_2O}_n with 3- Carboxylate-4-sulfonato- phenolate (csph) Ligands
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A Two-dimensional Rare Earth Metal-Organic Polymer [Pr_2 (csph)_2 (H_2 O)_4]6H_2O}_n with 3- Carboxylate-4-sulfonato- phenolate (csph) Ligands

机译:二维稀土金属有机聚合物[Pr_2(csph)_2(H_2 O)_4] 6H_2O} _n与3-羧酸盐-4-磺基苯酚盐(csph)配体

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摘要

A two-dimensional rare earth metal-organic polymer {[Pr_2(csph)_2(H_2O)_4].6H_2O}_n (1) with 3- carboxylate-4-sulfonato-phenolate (csph) ligands was obtained by hydrothermal synthesis and char-acterized by elemental analysis and IR spectroscopy, and also by single-crystal X-ray diffraction. The crystal is orthorhombic, space group Pbcn with a = 15.9113(6), b = 9.3563(4), c = 16.0497(6) A, Z = 4, and V = 2240.46(16) A~3. The praseodymium atom is coordinated to eight oxygen atoms from the csph~(3-) ligands and two water molecules to form a distorted dodecahedron. The csph~(3-)ligands involved in forming a two-dimensional framework are all multiply bridging via the sulfonate (μ_2, η~2) and the carboxylate groups (μ_3, η~2:η~1 ). The thermal stability of complex 1 was studied by thermogravimctric analysis (TGA), and the photoluminescence properties of complex 1 were also investigatcd.
机译:通过水热合成和焦化得到了具有3-羧酸盐-4-磺基酚盐(csph)配体的二维稀土金属有机聚合物{[Pr_2(csph)_2(H_2O)_4] .6H_2O} _n(1)通过元素分析和红外光谱以及单晶X射线衍射表征。晶体是正交晶体,空间群Pbcn具有a = 15.9113(6),b = 9.3563(4),c = 16.0497(6)A,Z = 4,V = 2240.46(16)A〜3。 ody原子与csph〜(3-)配体中的八个氧原子和两个水分子配位,形成扭曲的十二面体。参与形成二维骨架的csph〜(3-)配体均通过磺酸根(μ_2,η〜2)和羧酸根(μ_3,η〜2:η〜1)多重桥接。通过热重分析(TGA)研究了配合物1的热稳定性,并且还研究了配合物1的光致发光性质。

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