RbMgV4O10 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(2) and four equivalent O(5) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(5) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(3), and three equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 26-31°. In the second V site, V(2) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 26-28°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(1) and two equivalent V(2) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one V(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one V(1) and two equivalent V(2) atoms. In the fourth O site, O(4) is bonded to one V(2) and three equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one V(2) atom.
RbMgV4O10 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(2) and four equivalent O(5) atoms. All Rb(1)-O(2) bond lengths are 3.00 Å. There are two shorter (2.93 Å) and two longer (3.01 Å) Rb(1)-O(5) bond lengths. Mg(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(5) atoms. Both Mg(1)-O(2) bond lengths are 2.03 Å. Both Mg(1)-O(5) bond lengths are 2.01 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(3), and three equivalent O(4) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 26-31°. The V(1)-O(1) bond length is 2.01 Å. The V(1)-O(2) bond length is 1.73 Å. The V(1)-O(3) bond length is 1.96 Å. There are two shorter (1.98 Å) and one longer (2.21 Å) V(1)-O(4) bond length. In the second V site, V(2) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 26-28°. The V(2)-O(4) bond length is 2.10 Å. The V(2)-O(5) bond length is 1.74 Å. There is one shorter (1.82 Å) and one longer (2.20 Å) V(2)-O(1) bond length. There is one shorter (1.96 Å) and one longer (1.97 Å) V(2)-O(3) bond length. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one V(1) and two equivalent V(2) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one V(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one V(1) and two equivalent V(2) atoms. In the fourth O site, O(4) is bonded to one V(2) and three equivalent V(1) atoms to form a mixture of distorted corner and edge-sharing OV4 trigonal pyramids. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one Mg(1), and one V(2) atom.