NaMgV4O10 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), and three equivalent O(5) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(2) and two equivalent V(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Mg(1), and one V(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Mg(1), and one V(2) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one V(2) and two equivalent V(1) atoms. In the fifth O site, O(5) is bonded to one V(1) and three equivalent V(2) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids.
NaMgV4O10 crystallizes in the triclinic P-1 space group. Na(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. There are two shorter (2.75 Å) and two longer (2.93 Å) Na(1)-O(2) bond lengths. There are two shorter (2.85 Å) and two longer (2.96 Å) Na(1)-O(3) bond lengths. Mg(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Mg(1)-O(2) bond lengths are 2.02 Å. Both Mg(1)-O(3) bond lengths are 2.03 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms. The V(1)-O(2) bond length is 1.75 Å. The V(1)-O(5) bond length is 2.09 Å. There is one shorter (1.81 Å) and one longer (2.23 Å) V(1)-O(1) bond length. Both V(1)-O(4) bond lengths are 1.94 Å. In the second V site, V(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), and three equivalent O(5) atoms. The V(2)-O(1) bond length is 1.96 Å. The V(2)-O(3) bond length is 1.73 Å. The V(2)-O(4) bond length is 1.96 Å. There are a spread of V(2)-O(5) bond distances ranging from 1.95-2.28 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(2) and two equivalent V(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Mg(1), and one V(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Mg(1), and one V(2) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one V(2) and two equivalent V(1) atoms. In the fifth O site, O(5) is bonded to one V(1) and three equivalent V(2) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids.