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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A two-dimensional anionic CdII polymer constructed through dicyanamide coordination bridges
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A two-dimensional anionic CdII polymer constructed through dicyanamide coordination bridges

机译:通过二氰胺的配位桥构造的二维阴离子CDII聚合物

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In the search for potential ferroelectric materials, molecular-based one-, two-and three-dimensional cadmium(II) organic-inorganic compounds have been of interest as they often display solid-solid phase transitions induced by a variation in temperature. A new cadmium dicyanamide complex, poly[4-dimethylamino-1-ethylpyridin-1-ium [tri-/M-dicyanamido-/c N :N5 -cadmium(II)]], {(C9H15N2)-[Cd(C2N3)3]}n, was synthesized by the reaction of 4-dimethylamino-1-ethyl-pyridin-1-ium bromide, cadmium nitrate tetrahydrate and sodium dicyanamide in aqueous solution. In the crystal structure, each CdII cation is octahedrally coordinated by six terminal N atoms from six anionic dicyanamide (dca) ligands. Neighbouring CdII cations are linked together by dicyanamide bridges to form a two-dimensional coordination polymer. The organic cations are not involved in the formation of the supramolecular network.
机译:在寻找潜在的铁电材料中,基于分子的单,双和三维镉(II)有机 - 无机化合物具有感兴趣的,因为它们通常会显示通过温度变化诱导的固体固相转变。 一种新的二氰胺络合物,聚[4-二甲基氨基-1-乙基吡啶-1-Ium [三-/ M-二氰基氨基-/ C N:N5-镉(II)]],{(C9H15N2) - [CD(C2N3) 通过4-二甲基氨基-1-乙基 - 吡啶-1-Ium溴化物,硝酸镉四水合物和二氰胺在水溶液中的反应合成。 在晶体结构中,每种CDII阳离子由来自六个阴离子二氰胺(DCA)配体的六个末端N原子的八烯次阳离子。 相邻的CDII阳离子通过二氰胺桥梁连接在一起,形成二维配位聚合物。 有机阳离子不参与超分子网络的形成。

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