NaMgRuO3 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 1-coordinate geometry to three equivalent O(2) atoms. Mg(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. Ru(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted corner-sharing RuO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Na(1), one Mg(1), and one Ru(1) atom.
NaMgRuO3 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 1-coordinate geometry to three equivalent O(2) atoms. There is one shorter (2.37 Å) and two longer (2.81 Å) Na(1)-O(2) bond lengths. Mg(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. The Mg(1)-O(2) bond length is 1.94 Å. There are two shorter (2.09 Å) and two longer (2.11 Å) Mg(1)-O(1) bond lengths. Ru(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted corner-sharing RuO5 trigonal bipyramids. The Ru(1)-O(2) bond length is 1.97 Å. There are two shorter (2.00 Å) and two longer (2.08 Å) Ru(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Ru(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Na(1), one Mg(1), and one Ru(1) atom.