In Search of Aluminum Hexathiohypodiphosphate: Synthesis and Structures of ht-AlPS<sub>4</sub>, lt-AlPS<sub>4</sub>, and Al<sub>4</sub>(P<sub>2</sub>S<sub>6</sub>)<sub>3</sub>
作者:Alexander Kuhn、Roland Eger、Pirmin Ganter、Viola Duppel、Jürgen Nuss、Bettina V. Lotsch
DOI:10.1002/zaac.201400385
日期:2014.11
We report the high-pressure synthesis and the structure of aluminum hexathiohypodiphosphate, Al4(P2S6)3, along with the redetermination of the structures of two modifications of AlPS4. Al4(P2S6)3 crystallizes in the monoclinic space group C2 with a = 17.584(3), b = 10.156(2), c = 6.698(1) A, β = 106.93(1)° in a superstructure of the layered FePS3 structure type with tripled a axis. Hereby, Al3+ occupies
我们报告了高压合成和六硫代二磷酸铝 Al4(P2S6)3 的结构,以及对 AlPS4 的两种修饰结构的重新确定。Al4(P2S6)3 在单斜空间群 C2 中结晶,a = 17.584(3), b = 10.156(2), c = 6.698(1) A, β = 106.93(1)° 在层状 FePS3 结构的超结构中带有三重轴的类型。因此,Al3+ 以有序的方式占据 Fe2+ 位点的 2/3。从单晶 X 射线衍射获得的结构模型由 TEM-PED 证实。具有片状形态的 AlPS4 的低温改性显示出四方对称性 [空间群 P2c, a = b = 5.6572(9), c = 9.220(2) A]。具有纤维针状形态的 AlPS4 的正交高温改性与 BPS4 等温 [空间群 I222, a = 5.660(2), b = 5.759(2),