EuTiO3 crystallizes in the tetragonal I4/mcm space group. Eu(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. Ti(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TiO6 octahedra that share corners with six equivalent Ti(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-19°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Eu(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and two equivalent Ti(1) atoms.
EuTiO3 crystallizes in the tetragonal I4/mcm space group. Eu(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. All Eu(1)-O(1) bond lengths are 2.74 Å. There are four shorter (2.54 Å) and four longer (3.00 Å) Eu(1)-O(2) bond lengths. Ti(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TiO6 octahedra that share corners with six equivalent Ti(1)O6 octahedra and faces with eight equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-19°. Both Ti(1)-O(1) bond lengths are 1.97 Å. All Ti(1)-O(2) bond lengths are 1.97 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Eu(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to four equivalent Eu(1) and two equivalent Ti(1) atoms.