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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Ternary hydroxides II. synthesis and crystal structure of the layered barium hexahydroxidostannate(IV) pentahydrate, Ba[Sn(OH)_6] ·5H_2O
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Ternary hydroxides II. synthesis and crystal structure of the layered barium hexahydroxidostannate(IV) pentahydrate, Ba[Sn(OH)_6] ·5H_2O

机译：三元氢氧化物II。五水合Ba [Sn（OH）_6]·5H_2O的层状六水氧化锡锡酸钡（IV）的合成及晶体结构

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摘要

Single crystals of Ba[Sn(OH)_6]·H_2O (1) were grown by three different methods and the crystal structure was determined by X-ray diffraction (monoclinic, P2_1/c, a = 10.3119(2) ?, b = 8.6079(2) ?, c = 23.4906(4) ?, β = 90.774(1)°, V = 2084.93(7) ?3, Z = 8). The fundamental primary building units (PBU's) consist of two octahedral [Sn(OH)_6]~(2-) ions and two monocapped square antiprisms of (Ba(OH)_4(H_2O) _5). The latter and one of the two {Sn(OH)_6) octahedra are linked together through common edges resulting in the formation of layers, the secondary building units (SBU's). These layers can be described in terms of two {BaO_9} Zweier single chains parallel to the b axis which are linked together every second antiprism through common edges with one of its two adjacent chains. The holes between these chains are filled from the {Sn(OH) _6} octahedra. In contrast, the second {Sn(OH)_6} octahedron has the function of a spacer separating the SBU's from each other. Furthermore, the interlayer space is filled by five additional water molecules which are not part of any coordination sphere. All building units are held together by an extended network of hydrogen bonds with structural data that indicate medium strong to weak interactions.
机译：通过三种不同的方法生长Ba [Sn（OH）_6]·H_2O（1）的单晶，并通过X射线衍射确定晶体结构（单斜晶系，P2_1 / c，a = 10.3119（2）α，b = 8.6079（2）θ，c ＝ 23.4906（4）θ，β＝ 90.774（1）°，V ＝ 2084.93（7）θ3，Z ＝ 8）。基本的基本建筑单元（PBU）由两个八面体[Sn（OH）_6]〜（2-）离子和两个（Ba（OH）_4（H_2O）_5）的单峰方形反棱镜组成。后者和两个{Sn（OH）_6）八面体中的一个通过共同的边缘连接在一起，从而形成了第二建筑单元（SBU）的层。这些层可以用两条平行于b轴的{BaO_9} Zweier单链来描述，这两条链通过其两个相邻链中的一条通过共同的边缘每隔一秒就被反棱镜连接在一起。这些链之间的孔从{Sn（OH）_6}八面体填充。相反，第二{Sn（OH）_6}八面体具有将SBU彼此分开的间隔物的功能。此外，层间空间由五个其他水分子填充，这些分子不属于任何配位球。所有建筑单元通过扩展的氢键网络结合在一起，氢键的结构数据表明中等强度的相互作用。

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