TbAsO2 crystallizes in the tetragonal I4_1/amd space group. Tb(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. As(1) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded to three equivalent Tb(1) and one As(1) atom to form a mixture of corner and edge-sharing OTb3As tetrahedra.
TbAsO2 crystallizes in the tetragonal I4_1/amd space group. Tb(1) is bonded in a distorted hexagonal planar geometry to six equivalent O(1) atoms. There are two shorter (2.25 Å) and four longer (2.40 Å) Tb(1)-O(1) bond lengths. As(1) is bonded in a linear geometry to two equivalent O(1) atoms. Both As(1)-O(1) bond lengths are 2.08 Å. O(1) is bonded to three equivalent Tb(1) and one As(1) atom to form a mixture of corner and edge-sharing OTb3As tetrahedra.