Abstract The scandium-rich indide Sc50Pt13.47In2.53 was obtained by induction melting of the elements and subsequent annealing. The structure of Sc50Pt13.47In2.53 has been refined from single-crystal X-ray diffractometer data: Fm 3 ¯ $\overline{3}$ , a = 1774.61(3) pm, wR2 = 0.0443, 1047 F2 values and 35 variables. Sc50Pt13.47In2.53 is isopointal with the intermetallic phases Sc50Co12.5In3.5, Sc50Rh13.3In2.7, Sc50Ir13.6In2.4, Ag7+xMg26−x and Ga4.55Mg21.85Pd6.6 (Pearson code cF264 and Wyckoff sequence ih 2 fecba). Two of the eight crystallographic sites in the structure show mixed occupancies: M1 (≡Pt20.70In10.30) and M2 (≡Pt30.76In20.24). The structure contains four basic polyhedra: M2@Sc8 cubes, Pt1@Sc10 sphenocorona and slightly distorted M1@Sc12 and In3@Sc12 icosahedra. The polyhedra are condensed via common scandium corners and edges. The various Sc–Sc distances range from 302–334 pm and are indicative of substantial Sc–Sc bonding, stabilizing the Sc50Pt13.47In2.53 structure.

中文翻译：

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富含钪的铟元素 Sc50Pt13.47In2.53

摘要 通过元素的感应熔炼和后续的退火获得了富含钪的铟元素Sc50Pt13.47In2.53。Sc50Pt13.47In2.53 的结构已经从单晶 X 射线衍射仪的数据中得到细化：Fm 3 ¯ $\overline{3}$ , a = 1774.61(3) pm, wR2 = 0.0443, 1047 F2 值和 35 个变量. Sc50Pt13.47In2.53 与金属间相 Sc50Co12.5In3.5、Sc50Rh13.3In2.7、Sc50Ir13.6In2.4、Ag7+xMg26−x 和 Ga4.55Mg21.85Pd6.6 和 iFc6.6 2 粪）。结构中八个晶体学位点中的两个显示混合占据：M1 (≡Pt20.70In10.30) 和 M2 (≡Pt30.76In20.24)。该结构包含四个基本多面体：M2@Sc8 立方体、Pt1@Sc10 sphenocorona 和略微扭曲的 M1@Sc12 和 In3@Sc12 二十面体。多面体通过常见的钪角和边缘凝聚。