首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Synthesis and single-crystal structure of the pseudo-ternary compounds LiA[N(CN)(2)](2) (A = K or Rb)
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Synthesis and single-crystal structure of the pseudo-ternary compounds LiA[N(CN)(2)](2) (A = K or Rb)

机译:假三元化合物LiA [N(CN)(2)](2)(A = K或Rb)的合成和单晶结构

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Crystals of LiA[N(CN)(2)](2) were obtained from the reaction of LiCl and ACl (A = K or Rb) with Ag[N(CN)(2)] in water and subsequent evaporation of the filtered solution at 80 degrees C under normal atmospheric conditions. Crystals of the title compound form thin rectangular plates that are transparent, colorless, and very fragile. Single-crystal structure analyses have shown that both compounds are isotypic and adopt the tetragonal space group I4/mcm (no. 140, Z = 4) with the cell parameters a = 701.53(12) and c = 1413.7(5) pm for LiK[N(CN)(2)](2) and a = 730.34(10) and c = 1414.4(4) pm for LiRb[N(CN)(2)](2). The crystal structure is described and compared to that of the pseudo-binary alkali metal dicyanamides.
机译:LiA [N(CN)(2)](2)的晶体是通过LiCl和ACl(A = K或Rb)与Ag [N(CN)(2)]在水中的反应得到的,然后蒸发过滤得到在正常大气条件下于80摄氏度下溶解。标题化合物的晶体形成透明,无色且非常易碎的矩形薄板。单晶结构分析表明,这两种化合物都是同型的,并且对于LiK采用单元参数a = 701.53(12)和c = 1413.7(5)pm的四边形空间群I4 / mcm(编号140,Z = 4)。对于LiRb [N(CN)(2)](2),[N(CN)(2)](2)且a = 730.34(10)和c = 1414.4(4)pm。描述了晶体结构并将其与拟二元碱金属双氰胺的晶体结构进行了比较。

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