Materials Data on Yb3Eu by Materials Project

Yb3Eu is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Yb is bonded to eight equivalent Yb and four equivalent Eu atoms to form YbYb8Eu4 cuboctahedra that share corners with four equivalent EuYb12 cuboctahedra, corners with fourteen equivalent YbYb8Eu4 cuboctahedra, edges with six equivalent EuYb12 cuboctahedra, edges with twelve equivalent YbYb8Eu4 cuboctahedra, faces with four equivalent EuYb12 cuboctahedra, and faces with sixteen equivalent YbYb8Eu4 cuboctahedra. There are four shorter (3.85 Å) and four longer (3.87 Å) Yb–Yb bond lengths. There are two shorter (3.85 Å) and two longer (3.87 Å) Yb–Eu bond lengths. Eu is bonded to twelve equivalent Yb atoms to form EuYb12 cuboctahedra that share corners with six equivalent EuYb12 cuboctahedra, corners with twelve equivalent YbYb8Eu4 cuboctahedra, edges with eighteen equivalent YbYb8Eu4 cuboctahedra, faces with eight equivalent EuYb12 cuboctahedra, and faces with twelve equivalent YbYb8Eu4 cuboctahedra.

Yb₃Eu 具有β-Cu₃Ti型晶体结构，结晶于六方晶系P6₃/mmc空间群(space group)。该结构为三维空间骨架。Yb原子与8个等价的Yb原子及4个等价的Eu原子成键，形成YbYb₈Eu₄立方八面体(cuboctahedron)配位多面体；该配位多面体分别与4个等价的EuYb₁₂立方八面体、14个等价的YbYb₈Eu₄立方八面体共享顶点，与6个等价的EuYb₁₂立方八面体、12个等价的YbYb₈Eu₄立方八面体共享棱，与4个等价的EuYb₁₂立方八面体、16个等价的YbYb₈Eu₄立方八面体共享面。Yb-Yb键存在4条较短键长（3.85 Å）与4条较长键长（3.87 Å）；Yb-Eu键则存在2条较短键长（3.85 Å）与2条较长键长（3.87 Å）。Eu原子与12个等价的Yb原子成键，形成EuYb₁₂立方八面体配位多面体；该配位多面体分别与6个等价的EuYb₁₂立方八面体、12个等价的YbYb₈Eu₄立方八面体共享顶点，与18个等价的YbYb₈Eu₄立方八面体共享棱，与8个等价的EuYb₁₂立方八面体、12个等价的YbYb₈Eu₄立方八面体共享面。