YInO3 crystallizes in the hexagonal P6_3cm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(3), three equivalent O(1), and three equivalent O(2) atoms to form distorted YO7 pentagonal bipyramids that share corners with three equivalent In(1)O5 trigonal bipyramids and edges with three equivalent In(1)O5 trigonal bipyramids. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(4), three equivalent O(1), and three equivalent O(2) atoms. In(1) is bonded to one O(1), one O(2), one O(3), and two equivalent O(4) atoms to form InO5 trigonal bipyramids that share  a cornercorner with one Y(1)O7 pentagonal bipyramid, corners with six equivalent In(1)O5 trigonal bipyramids, and  an edgeedge with one Y(1)O7 pentagonal bipyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Y(1), two equivalent Y(2), and one In(1) atom to form OY3In tetrahedra that share corners with two equivalent O(3)YIn3 tetrahedra, corners with four equivalent O(2)Y3In tetrahedra, corners with six equivalent O(1)Y3In tetrahedra, edges with three equivalent O(2)Y3In tetrahedra, and edges with two equivalent O(4)YIn3 trigonal pyramids. In the second O site, O(2) is bonded to one Y(1), two equivalent Y(2), and one In(1) atom to form OY3In tetrahedra that share corners with four equivalent O(1)Y3In tetrahedra, corners with six equivalent O(2)Y3In tetrahedra, corners with four equivalent O(4)YIn3 trigonal pyramids,  an edgeedge with one O(3)YIn3 tetrahedra, and edges with three equivalent O(1)Y3In tetrahedra. In the third O site, O(3) is bonded to one Y(1) and three equivalent In(1) atoms to form OYIn3 tetrahedra that share corners with six equivalent O(1)Y3In tetrahedra, corners with six equivalent O(4)YIn3 trigonal pyramids, and edges with three equivalent O(2)Y3In tetrahedra. In the fourth O site, O(4) is bonded to one Y(2) and three equivalent In(1) atoms to form distorted OYIn3 trigonal pyramids that share corners with three equivalent O(3)YIn3 tetrahedra, corners with six equivalent O(2)Y3In tetrahedra, corners with three equivalent O(4)YIn3 trigonal pyramids, and edges with three equivalent O(1)Y3In tetrahedra.
YInO3 crystallizes in the hexagonal P6_3cm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(3), three equivalent O(1), and three equivalent O(2) atoms to form distorted YO7 pentagonal bipyramids that share corners with three equivalent In(1)O5 trigonal bipyramids and edges with three equivalent In(1)O5 trigonal bipyramids. The Y(1)-O(3) bond length is 2.43 Å. All Y(1)-O(1) bond lengths are 2.27 Å. All Y(1)-O(2) bond lengths are 2.40 Å. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(4), three equivalent O(1), and three equivalent O(2) atoms. The Y(2)-O(4) bond length is 2.53 Å. All Y(2)-O(1) bond lengths are 2.32 Å. All Y(2)-O(2) bond lengths are 2.33 Å. In(1) is bonded to one O(1), one O(2), one O(3), and two equivalent O(4) atoms to form InO5 trigonal bipyramids that share  a cornercorner with one Y(1)O7 pentagonal bipyramid, corners with six equivalent In(1)O5 trigonal bipyramids, and  an edgeedge with one Y(1)O7 pentagonal bipyramid. The In(1)-O(1) bond length is 2.11 Å. The In(1)-O(2) bond length is 2.09 Å. The In(1)-O(3) bond length is 2.13 Å. Both In(1)-O(4) bond lengths are 2.13 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Y(1), two equivalent Y(2), and one In(1) atom to form OY3In tetrahedra that share corners with two equivalent O(3)YIn3 tetrahedra, corners with four equivalent O(2)Y3In tetrahedra, corners with six equivalent O(1)Y3In tetrahedra, edges with three equivalent O(2)Y3In tetrahedra, and edges with two equivalent O(4)YIn3 trigonal pyramids. In the second O site, O(2) is bonded to one Y(1), two equivalent Y(2), and one In(1) atom to form OY3In tetrahedra that share corners with four equivalent O(1)Y3In tetrahedra, corners with six equivalent O(2)Y3In tetrahedra, corners with four equivalent O(4)YIn3 trigonal pyramids,  an edgeedge with one O(3)YIn3 tetrahedra, and edges with three equivalent O(1)Y3In tetrahedra. In the third O site, O(3) is bonded to one Y(1) and three equivalent In(1) atoms to form OYIn3 tetrahedra that share corners with six equivalent O(1)Y3In tetrahedra, corners with six equivalent O(4)YIn3 trigonal pyramids, and edges with three equivalent O(2)Y3In tetrahedra. In the fourth O site, O(4) is bonded to one Y(2) and three equivalent In(1) atoms to form distorted OYIn3 trigonal pyramids that share corners with three equivalent O(3)YIn3 tetrahedra, corners with six equivalent O(2)Y3In tetrahedra, corners with three equivalent O(4)YIn3 trigonal pyramids, and edges with three equivalent O(1)Y3In tetrahedra.