Tb2RuO5 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(2), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted TbO7 hexagonal pyramids that share corners with three equivalent Ru(1)O5 trigonal bipyramids, edges with two equivalent Tb(1)O7 hexagonal pyramids, and edges with two equivalent Ru(1)O5 trigonal bipyramids. In the second Tb site, Tb(2) is bonded in a distorted body-centered cubic geometry to one O(3), one O(4), one O(5), two equivalent O(2), and three equivalent O(1) atoms. Ru(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(5) atoms to form distorted RuO5 trigonal bipyramids that share corners with three equivalent Tb(1)O7 hexagonal pyramids, corners with two equivalent Ru(1)O5 trigonal bipyramids, and edges with two equivalent Tb(1)O7 hexagonal pyramids. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Tb(1) and three equivalent Tb(2) atoms to form OTb4 tetrahedra that share corners with two equivalent O(5)Tb2Ru2 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(2)Tb3Ru tetrahedra, corners with five equivalent O(3)Tb3Ru tetrahedra,  a cornercorner with one O(4)Tb3Ru trigonal pyramid,  an edgeedge with one O(5)Tb2Ru2 tetrahedra,  an edgeedge with one O(2)Tb3Ru tetrahedra, edges with two equivalent O(1)Tb4 tetrahedra, and edges with two equivalent O(4)Tb3Ru trigonal pyramids. In the second O site, O(2) is bonded to one Tb(1), two equivalent Tb(2), and one Ru(1) atom to form OTb3Ru tetrahedra that share  a cornercorner with one O(5)Tb2Ru2 tetrahedra,  a cornercorner with one O(3)Tb3Ru tetrahedra, corners with two equivalent O(2)Tb3Ru tetrahedra, corners with five equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(4)Tb3Ru trigonal pyramids,  an edgeedge with one O(1)Tb4 tetrahedra, edges with two equivalent O(5)Tb2Ru2 tetrahedra, and edges with two equivalent O(3)Tb3Ru tetrahedra. In the third O site, O(3) is bonded to one Tb(2), two equivalent Tb(1), and one Ru(1) atom to form OTb3Ru tetrahedra that share  a cornercorner with one O(5)Tb2Ru2 tetrahedra,  a cornercorner with one O(2)Tb3Ru tetrahedra, corners with two equivalent O(3)Tb3Ru tetrahedra, corners with five equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(4)Tb3Ru trigonal pyramids, edges with two equivalent O(5)Tb2Ru2 tetrahedra, edges with two equivalent O(2)Tb3Ru tetrahedra, and edges with two equivalent O(4)Tb3Ru trigonal pyramids. In the fourth O site, O(4) is bonded to one Tb(2), two equivalent Tb(1), and one Ru(1) atom to form distorted OTb3Ru trigonal pyramids that share  a cornercorner with one O(1)Tb4 tetrahedra, corners with two equivalent O(3)Tb3Ru tetrahedra, corners with five equivalent O(5)Tb2Ru2 tetrahedra, corners with five equivalent O(2)Tb3Ru tetrahedra, corners with two equivalent O(4)Tb3Ru trigonal pyramids, edges with two equivalent O(3)Tb3Ru tetrahedra, and edges with two equivalent O(1)Tb4 tetrahedra. In the fifth O site, O(5) is bonded to one Tb(1), one Tb(2), and two equivalent Ru(1) atoms to form distorted OTb2Ru2 tetrahedra that share  a cornercorner with one O(2)Tb3Ru tetrahedra,  a cornercorner with one O(3)Tb3Ru tetrahedra, corners with two equivalent O(5)Tb2Ru2 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(4)Tb3Ru trigonal pyramids,  an edgeedge with one O(1)Tb4 tetrahedra, edges with two equivalent O(2)Tb3Ru tetrahedra, and edges with two equivalent O(3)Tb3Ru tetrahedra.
Tb2RuO5 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(2), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form distorted TbO7 hexagonal pyramids that share corners with three equivalent Ru(1)O5 trigonal bipyramids, edges with two equivalent Tb(1)O7 hexagonal pyramids, and edges with two equivalent Ru(1)O5 trigonal bipyramids. The Tb(1)-O(1) bond length is 2.27 Å. The Tb(1)-O(2) bond length is 2.37 Å. The Tb(1)-O(5) bond length is 2.39 Å. Both Tb(1)-O(3) bond lengths are 2.32 Å. Both Tb(1)-O(4) bond lengths are 2.40 Å. In the second Tb site, Tb(2) is bonded in a distorted body-centered cubic geometry to one O(3), one O(4), one O(5), two equivalent O(2), and three equivalent O(1) atoms. The Tb(2)-O(3) bond length is 2.34 Å. The Tb(2)-O(4) bond length is 2.87 Å. The Tb(2)-O(5) bond length is 2.44 Å. Both Tb(2)-O(2) bond lengths are 2.48 Å. All Tb(2)-O(1) bond lengths are 2.34 Å. Ru(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(5) atoms to form distorted RuO5 trigonal bipyramids that share corners with three equivalent Tb(1)O7 hexagonal pyramids, corners with two equivalent Ru(1)O5 trigonal bipyramids, and edges with two equivalent Tb(1)O7 hexagonal pyramids. The Ru(1)-O(2) bond length is 1.92 Å. The Ru(1)-O(3) bond length is 1.98 Å. The Ru(1)-O(4) bond length is 1.90 Å. Both Ru(1)-O(5) bond lengths are 2.02 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Tb(1) and three equivalent Tb(2) atoms to form OTb4 tetrahedra that share corners with two equivalent O(5)Tb2Ru2 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(2)Tb3Ru tetrahedra, corners with five equivalent O(3)Tb3Ru tetrahedra,  a cornercorner with one O(4)Tb3Ru trigonal pyramid,  an edgeedge with one O(5)Tb2Ru2 tetrahedra,  an edgeedge with one O(2)Tb3Ru tetrahedra, edges with two equivalent O(1)Tb4 tetrahedra, and edges with two equivalent O(4)Tb3Ru trigonal pyramids. In the second O site, O(2) is bonded to one Tb(1), two equivalent Tb(2), and one Ru(1) atom to form OTb3Ru tetrahedra that share  a cornercorner with one O(5)Tb2Ru2 tetrahedra,  a cornercorner with one O(3)Tb3Ru tetrahedra, corners with two equivalent O(2)Tb3Ru tetrahedra, corners with five equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(4)Tb3Ru trigonal pyramids,  an edgeedge with one O(1)Tb4 tetrahedra, edges with two equivalent O(5)Tb2Ru2 tetrahedra, and edges with two equivalent O(3)Tb3Ru tetrahedra. In the third O site, O(3) is bonded to one Tb(2), two equivalent Tb(1), and one Ru(1) atom to form OTb3Ru tetrahedra that share  a cornercorner with one O(5)Tb2Ru2 tetrahedra,  a cornercorner with one O(2)Tb3Ru tetrahedra, corners with two equivalent O(3)Tb3Ru tetrahedra, corners with five equivalent O(1)Tb4 tetrahedra, corners with two equivalent O(4)Tb3Ru trigonal pyramids, edges with two equivalent O(5)Tb2Ru2 tetrahedra, edges with two equivalent O(2)Tb3Ru tetrahedra, and edges with two equivalent O(4)Tb3Ru trigonal pyramids. In the fourth O site, O(4) is bonded to one Tb(2), two equivalent Tb(1), and one Ru(1) atom to form distorted OTb3Ru trigonal pyramids that share  a cornercorner with one O(1)Tb4 tetrahedra, corners with two equivalent O(3)Tb3Ru tetrahedra, corners with five equivalent O(5)Tb2Ru2 tetrahedra, corners with five equivalent O(2)Tb3Ru tetrahedra, corners with two equivalent O(4)Tb3Ru trigonal pyramids, edges with two equivalent O(3)Tb3Ru tetrahedra, and edges with two equivalent O(1)Tb4 tetrahedra. In the fifth O site, O(5) is bonded to one Tb(1), one Tb(2), and two equivalent Ru(1) atoms to form distorted OTb2Ru2 tetrahedra that share  a cornercorner with one O(2)Tb3Ru tetrahedra,  a cornercorner with one O(3)Tb3Ru tetrahedra, corners with two equivalent O(5)Tb2Ru2 tetrahedra, corners with two equivalent O(1)Tb4 tetrahedra, corners with five equivalent O(4)Tb3Ru trigonal pyramids,  an edgeedge with one O(1)Tb4 tetrahedra, edges with two equivalent O(2)Tb3Ru tetrahedra, and edges with two equivalent O(3)Tb3Ru tetrahedra.