NaMgTi2BiO6 crystallizes in the trigonal R3 space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Mg(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 17-41°. In the second Ti site, Ti(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 17-41°. Bi(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Mg(1), one Ti(1), one Ti(2), and one Bi(1) atom to form a mixture of distorted corner and edge-sharing ONaMgTi2Bi square pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Mg(1), one Ti(1), and one Ti(2) atom.
NaMgTi2BiO6 crystallizes in the trigonal R3 space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. All Na(1)-O(1) bond lengths are 2.17 Å. All Na(1)-O(2) bond lengths are 2.34 Å. Mg(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. All Mg(1)-O(1) bond lengths are 2.01 Å. All Mg(1)-O(2) bond lengths are 2.26 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 17-41°. All Ti(1)-O(1) bond lengths are 2.21 Å. All Ti(1)-O(2) bond lengths are 2.03 Å. In the second Ti site, Ti(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 17-41°. All Ti(2)-O(1) bond lengths are 2.09 Å. All Ti(2)-O(2) bond lengths are 2.04 Å. Bi(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. All Bi(1)-O(1) bond lengths are 2.37 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Mg(1), one Ti(1), one Ti(2), and one Bi(1) atom to form a mixture of distorted corner and edge-sharing ONaMgTi2Bi square pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Mg(1), one Ti(1), and one Ti(2) atom.