Tb2O2Se crystallizes in the orthorhombic Pnnm 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 edge and corner-sharing OTb4 tetrahedra.
Tb2O2Se crystallizes in the orthorhombic Pnnm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. There are two shorter (3.19 Å) and two longer (3.50 Å) Tb(1)-Se(1) bond lengths. There are a spread of Tb(1)-O(1) bond distances ranging from 2.23-2.26 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 edge and corner-sharing OTb4 tetrahedra.