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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >(LiI)(2)Li3SbS3: A mixed Alkali Metal Halide Thioantimonate with a novel Tetrahedron Network
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(LiI)(2)Li3SbS3: A mixed Alkali Metal Halide Thioantimonate with a novel Tetrahedron Network

机译：（LiI）（2）Li3SbS3：具有新型四面体网络的混合碱金属卤化物硫锑酸盐

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摘要

(LiL)(2)Li3SbS3 was prepared by solid-state reaction of stoichiometric amounts of Lil, Li, Sb, and S in the ratio 2 : 3 : I : 3. The product is air and moisture sensitive. The crystal structure was determined from single crystals at room temperature. Colourless to pale yellow (Lil)(2)Li3SbS3 crystallizes in the orthorhombic system, space group Pnnm (no. 58) with a = 10.436(l) Angstrom, b = 13.509(l) Angstrom, c = 7.530(l) Angstrom. V = 1061.6(l) Angstrom(3), and Z = 4 (data at 20 degreesC). The crystal structure of (Lil)(2)Li3SbS3 is closely related to that of (CuI)(2)Cu3SbS3 and (AgI)(2)Ag3SbS3, at least for the positions of 1, Sb, and S. Thus, iodine forms an eutactic arrangement which resembles the structure of hexagonal diamond. [SbS3](3-) units are embedded in this framework in a way that the sulphur atoms of two adjacent trigonal pyramids form distorted octahedral voids. The lithium ions are tetrahedrally coordinated and fully ordered within the anionic framework. The three-dimensional connectivities in (Lil)(2)Li3SbS3 are significantly different from the homologous copper and silver compound due to the bonding necessities of Li and slightly different radii of the monovalent cations. Thus, a novel three-dimensional network of edge sharing tetrahedra is observed in (Lil)(2)Li3SbS3. It exhibits strands of eight-membered rings of edge sharing tetrahedra which are linked by common vertices and cross linked by double tetrahedra.
机译：（LiL）（2）Li3SbS3是通过化学计量的Lil，Li，Sb和S以2：3：I：3的比例进行固相反应制备的。该产品对空气和湿气敏感。在室温下由单晶确定晶体结构。无色至浅黄色（Lil）（2）Li3SbS3在正交晶系系统中结晶，空间群Pnnm（no.58），a = 10.436（l）埃，b = 13.509（l）埃，c = 7.530（l）埃。 V ＝ 1061.6（l）埃（3），Z ＝ 4（20℃下的数据）。 （Lil）（2）Li3SbS3的晶体结构至少在1，Sb和S的位置与（CuI）（2）Cu3SbS3和（AgI）（2）Ag3SbS3的晶体结构密切相关。因此，碘形成一种类似于六角形钻石结构的自律排列。 [SbS3]（3-）单元以两个相邻三角锥的硫原子形成扭曲的八面体空隙的方式嵌入此框架中。锂离子在阴离子框架内四面体配位并完全有序。 （Lil）（2）Li3SbS3中的三维连接性与同源铜和银化合物存在显着差异，这是由于Li的键合必要性和单价阳离子的半径略有不同所致。因此，在（Lil）（2）Li3SbS3中观察到边缘共享四面体的新型三维网络。它显示出共享共有四面体的边的八元环链，这些四面体通过共同的顶点连接，并通过双四面体交叉连接。

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