Tb2O2Se is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. Se(1) is bonded in a body-centered cubic geometry to eight equivalent Tb(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of corner and edge-sharing OTb4 tetrahedra.
Tb2O2Se is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. All Tb(1)-Se(1) bond lengths are 3.33 Å. All Tb(1)-O(1) bond lengths are 2.24 Å. Se(1) is bonded in a body-centered cubic geometry to eight equivalent Tb(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of corner and edge-sharing OTb4 tetrahedra.