SnAlO3 crystallizes in the hexagonal P6_3cm space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 6-coordinate geometry to three equivalent O(3) and three equivalent O(4) atoms. In the second Al site, Al(2) is bonded to one O(2) and three equivalent O(4) atoms to form AlO4 tetrahedra that share corners with six equivalent Sn(1)O5 trigonal bipyramids. Sn(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted SnO5 trigonal bipyramids that share corners with two equivalent Al(2)O4 tetrahedra and corners with six equivalent Sn(1)O5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to three equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Al(2) and three equivalent Sn(1) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Al(1) and one Sn(1) atom. In the fourth O site, O(4) is bonded to one Al(2), two equivalent Al(1), and one Sn(1) atom to form corner-sharing OAl3Sn tetrahedra.
SnAlO3 crystallizes in the hexagonal P6_3cm space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 6-coordinate geometry to three equivalent O(3) and three equivalent O(4) atoms. All Al(1)-O(3) bond lengths are 1.90 Å. All Al(1)-O(4) bond lengths are 2.30 Å. In the second Al site, Al(2) is bonded to one O(2) and three equivalent O(4) atoms to form AlO4 tetrahedra that share corners with six equivalent Sn(1)O5 trigonal bipyramids. The Al(2)-O(2) bond length is 1.81 Å. All Al(2)-O(4) bond lengths are 1.83 Å. Sn(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted SnO5 trigonal bipyramids that share corners with two equivalent Al(2)O4 tetrahedra and corners with six equivalent Sn(1)O5 trigonal bipyramids. The Sn(1)-O(2) bond length is 2.27 Å. The Sn(1)-O(3) bond length is 2.12 Å. The Sn(1)-O(4) bond length is 2.30 Å. Both Sn(1)-O(1) bond lengths are 2.06 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to three equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Al(2) and three equivalent Sn(1) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Al(1) and one Sn(1) atom. In the fourth O site, O(4) is bonded to one Al(2), two equivalent Al(1), and one Sn(1) atom to form corner-sharing OAl3Sn tetrahedra.