Y2O3 is Corundum-like structured and crystallizes in the cubic Ia-3 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. In the second Y site, Y(2) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles are 56°. O(1) is bonded to one Y(2) and three equivalent Y(1) atoms to form a mixture of corner and edge-sharing OY4 trigonal pyramids.
Y2O3 is Corundum-like structured and crystallizes in the cubic Ia-3 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. There are a spread of Y(1)-O(1) bond distances ranging from 2.25-2.33 Å. In the second Y site, Y(2) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Y(2)-O(1) bond lengths are 2.28 Å. O(1) is bonded to one Y(2) and three equivalent Y(1) atoms to form a mixture of corner and edge-sharing OY4 trigonal pyramids.