Na2MgLa2Ti3O10 crystallizes in the tetragonal I4/mmm space group. Na(1) is bonded to five equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing NaO5 square pyramids. Mg(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. La(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(4) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 5-coordinate geometry to one O(2), one O(4), and four equivalent O(1) atoms. In the second Ti site, Ti(2) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded to five equivalent Na(1) and one Ti(1) atom to form a mixture of distorted corner and edge-sharing ONa5Ti octahedra. The corner-sharing octahedral tilt angles are 5°. In the third O site, O(3) is bonded in a square co-planar geometry to two equivalent Mg(1) and two equivalent Ti(2) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to four equivalent La(1), one Ti(1), and one Ti(2) atom.
Na2MgLa2Ti3O10 crystallizes in the tetragonal I4/mmm space group. Na(1) is bonded to five equivalent O(2) atoms to form a mixture of distorted corner and edge-sharing NaO5 square pyramids. There is one shorter (2.30 Å) and four longer (2.78 Å) Na(1)-O(2) bond lengths. Mg(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. All Mg(1)-O(3) bond lengths are 1.96 Å. La(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(4) atoms. All La(1)-O(1) bond lengths are 2.44 Å. All La(1)-O(4) bond lengths are 2.91 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded in a 5-coordinate geometry to one O(2), one O(4), and four equivalent O(1) atoms. The Ti(1)-O(2) bond length is 1.76 Å. The Ti(1)-O(4) bond length is 2.81 Å. All Ti(1)-O(1) bond lengths are 2.02 Å. In the second Ti site, Ti(2) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedra are not tilted. Both Ti(2)-O(4) bond lengths are 2.17 Å. All Ti(2)-O(3) bond lengths are 1.96 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded to five equivalent Na(1) and one Ti(1) atom to form a mixture of distorted corner and edge-sharing ONa5Ti octahedra. The corner-sharing octahedral tilt angles are 5°. In the third O site, O(3) is bonded in a square co-planar geometry to two equivalent Mg(1) and two equivalent Ti(2) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to four equivalent La(1), one Ti(1), and one Ti(2) atom.