The ternary silicide ErNi4.04Si0.96 was synthesized by arc-melting of stoichiometric quantities of the elements, and its crystal structure has been determined using single-crystal X-ray diffraction data. The compound crystallizes in the CaCu5 structure type: hexagonal space group P6/mmm, Pearson code hP6, Z = 1; a = 4.874(3), c = 3.959(2) Å, V = 81.5(1) Å3; R1 = 0.0239, wR2 = 0.0503, for 67 independent reflections with I > 2σ(I) and eight variables. The erbium and nickel atoms occupy the crystallographic positions 1a and 2c, respectively. The position 3g is occupied by a mixture of Ni and Si atoms. The structure of this silicide represents a packing of bipyramidal units built from nickel and Ni/Si atoms.

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三元硅化物ErNi4.04Si0.96的晶体结构

三元硅化物ErNi4.04硅0.96通过电弧熔化元素的化学计量合成，其晶体结构已使用单晶 X 射线衍射数据确定。该化合物在 CaCu 中结晶5个结构类型：六方空间群P6/嗯, 皮尔逊码生命值6、Z= 1;A= 4.874(3),C= 3.959(2) Å,V= 81.5(1) Å3个;R1 = 0.0239, wR2 = 0.0503，对于 67 次独立反射我> 2σ(我) 和八个变量。铒和镍原子占据晶体位置 1A和 2C， 分别。位置 3G被Ni和Si原子的混合物占据。这种硅化物的结构代表了由镍和 Ni/Si 原子构成的双锥体单元堆积。