TbNbO4 crystallizes in the tetragonal P4/nbm space group. Tb(1) is bonded in a distorted body-centered cubic geometry to eight equivalent O(1) atoms. Nb(1) is bonded in a distorted tetrahedral geometry to four equivalent O(1) atoms. O(1) is bonded in a 3-coordinate geometry to two equivalent Tb(1) and one Nb(1) atom.
TbNbO4 crystallizes in the tetragonal P4/nbm space group. Tb(1) is bonded in a distorted body-centered cubic geometry to eight equivalent O(1) atoms. All Tb(1)-O(1) bond lengths are 2.36 Å. Nb(1) is bonded in a distorted tetrahedral geometry to four equivalent O(1) atoms. All Nb(1)-O(1) bond lengths are 1.91 Å. O(1) is bonded in a 3-coordinate geometry to two equivalent Tb(1) and one Nb(1) atom.