The intermetallic scandium compounds Sc 1.024 Ir 2 In 0.976 and Sc 3 Ir 1.467 In 4 were synthesized by reactions of the elements in sealed tantalum ampoules at high temperature followed by annealing for crystal growth. Both structures were refined from single-crystal X-ray diffractometer data: MnCu 2 Al type, Fm3‾m$Fm‾{3}m$, a = 639.97(19) pm, wR 2 = 0.0376, 41 F 2 values, seven variables for Sc 1.024 Ir 2 In 0.976 and P6‾$P‾{6}$, a = 769.99(5), c = 684.71(4) pm, wR 2 = 0.0371, 967 F 2 values, 33 variables for Sc 3 Ir 1.467 In 4 . Sc 1.024 Ir 2 In 0.976 is a new Heusler phase with a small homogeneity range due to Sc/In and In/Sc mixing. The structure of Sc 3 Ir 1.467 In 4 is closely related to that of Sc 3 Rh 1.594 In 4 and belongs to the large family of ZrNiAl superstructures. The striking structural motif is the ordered stacking of empty In 6 and filled Ir@In 6 prisms with Ir–In distances of 269 pm.

中文翻译：

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Sc-Ir-In 系统中的金属间相——Sc1.024Ir2In0.976 和 Sc3Ir1.467In4 的合成和结构

金属间钪化合物Sc 1.024 Ir 2 In 0.976 和Sc 3 Ir 1.467 In 4 是通过元素在密封的钽安瓿中在高温下反应，然后进行晶体生长退火合成的。两种结构均由单晶 X 射线衍射仪数据精修：MnCu 2 Al 型，Fm3‾m$Fm‾{3}m$，a = 639.97(19) pm，wR 2 = 0.0376，41 F 2 值, Sc 1.024 Ir 2 In 0.976 和 P6‾$P‾{6}$, a = 769.99(5), c = 684.71(4) pm, wR 2 = 0.0371, 967 F 2 变量的七个变量, 33对于 Sc 3 Ir 1.467 In 4 。Sc 1.024 Ir 2 In 0.976 是一种新的 Heusler 相，由于 Sc/In 和 In/Sc 混合，其均匀性范围很小。Sc 3 Ir 1.467 In 4 的结构与Sc 3 Rh 1.594 In 4 的结构密切相关，属于ZrNiAl 超结构大家族。