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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A new three-dimensional anionic cadmium(II) dicyanamide network
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A new three-dimensional anionic cadmium(II) dicyanamide network

机译:一个新的三维阴离子镉(II)双氰胺网络

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摘要

A new cadmium dicyanamide complex, poly[tetramethylphosphonium [μ-chlorido-di-μ-dicyanamido-κ4N1:N5-cadmium(II)]], [(CH3)4P][Cd(NCNCN)2Cl], was synthesized by the reaction of tetramethylphosphonium chloride, cadmium nitrate tetrahydrate and sodium dicyanamide in aqueous solution. In the crystal structure, each CdII atom is octahedrally coordinated by four terminal N atoms from four anionic dicyanamide (dca) ligands and by two chloride ligands. The dicyanamide ligands play two different roles in the building up of the structure; one role results in the formation of [Cd(dca)Cl]2 building blocks, while the other links the building blocks into a three-dimensional structure. The anionic framework exhibits a solvent-accessible void of 673.8??3, amounting to 47.44% of the total unit-cell volume. The cavities in the network are occupied by pairs of tetramethylphosphonium cations.
机译:通过反应合成了一种新型的双氰胺镉络合物聚[四甲基phosph [μ-氯代-二-μ-二氰基氨基-κ4N1:N5-镉(II)]] [[CH3)4P] [Cd(NCNCN)2Cl]。水溶液中加入四甲基氯化chloride,硝酸镉四水合物和双氰胺钠。在晶体结构中,每个CdII原子由来自四个阴离子双氰胺(dca)配体的四个末端N原子和两个氯化物配体八面体配位。双氰胺配体在结构的建立中起着两种不同的作用。一种作用导致形成[Cd(dca)Cl] 2结构单元,而另一种则将结构单元链接成三维结构。阴离子骨架的溶剂可及孔隙为673.8?3 3,占单位晶胞总体积的47.44%。网络中的空腔被成对的四甲基phosph阳离子占据。

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