REPtX compounds with structures related to AIB2- and MgAgAs-type (RE=Y, Rare earth element;Χ = Ρ, As, Sb)
REPtX compounds with structures related to AIB2- and MgAgAs-type (RE=Y, Rare earth element;Χ = Ρ, As, Sb)
复制标题
具有与 AIB2 和 MgAgAs 型相关结构的 REPtX 化合物（RE=Y，稀土元素；X = P、As、Sb）
DOI：
10.1524/zkri.1986.176.12.125
复制
发表时间：
1986
期刊：
影响因子：
--
通讯作者：
A. Mewis
中科院分区：
文献类型：
--
作者：
G. Wenski;A. Mewis
几种新化合物REPtX（RE = Y，除Eu外的稀土元素；X = P，As，Sb）已被合成并通过X射线方法检测。磷化物结晶具有AlB2型结构。砷化物具有新的 AlB2 型衍生结构，具有褶皱 PtAs 层和 cREPtA，» 4CAJB2。对于化合物 ΔPtSb，我们在轻稀土元素的情况下发现了修改后的 Caln2 型结构，而 MgAgAs 型结构被指定为 YPtSb。结构已通过 YbPtP (PEm2; a = 407.7 pm, c = 377.7 pm)、Y PtAs (P63/mmc; a = 425.0 pm, c = 1516.5 pm)、NdPtSb (/>63mc; a = 453.4 pm, c = 786.6 pm) 和YPtSb (F43m; a = 653.8 pm)。在所有结构中，Pt 和磷元素均按有序位置排列。
Several new compounds REPtX (RE = Y, rare earth element except Eu; X = Ρ, As, Sb) have been synthesized and examined by Xray methods. The phosphides crystallize with AlB2-type structure. The arsenides possess a new AlB2-type derivative structure with puckered PtAs layers and cREPtA, » 4CAJB2. For the compounds Ä£PtSb we found a modified Caln2-type structure in case of the light rare earth elements, whereas the MgAgAs-type structure was assigned to YPtSb. The structures have been determined by single-crystal diffraction data for YbPtP (PEm2; a = 407.7 pm, c = 377.7 pm), Y PtAs (P63/mmc; a = 425.0 pm, c = 1516.5 pm), NdPtSb (/>63mc; a = 453.4 pm, c = 786.6 pm) and YPtSb (F43m; a = 653.8 pm). In all structures Pt and the pnicogen are arranged in ordered positions.