MgV4MnCuO12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(11), one O(4), one O(7), and one O(8) atom to form distorted MgO6 pentagonal pyramids that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra,  an edgeedge with one Cu(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra,  an edgeedge with one V(2)O4 tetrahedra, and  an edgeedge with one V(4)O4 tetrahedra. There are four inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-64°. In the second V site, V(2) is bonded to one O(3), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent V(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 31-60°. In the third V site, V(3) is bonded to one O(10), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and corners with two equivalent V(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-63°. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent V(3)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 30-60°. Mn(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one V(1)O4 tetrahedra,  a cornercorner with one V(3)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with two equivalent Mg(1)O6 pentagonal pyramids. Cu(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(5) atom to form distorted CuO6 octahedra that share  a cornercorner with one V(2)O4 tetrahedra,  a cornercorner with one V(4)O4 tetrahedra, corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted tetrahedral geometry to one Mg(1), one V(1), one Mn(1), and one Cu(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cu(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Mn(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(3) and one Cu(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(3), and one V(4) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one V(2), and one Mn(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one V(3) and one V(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one V(3), one Mn(1), and one Cu(1) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Mg(1), one V(4), and one Mn(1) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one V(4), one Mn(1), and one Cu(1) atom.
MgV4MnCuO12 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(10), one O(11), one O(4), one O(7), and one O(8) atom to form distorted MgO6 pentagonal pyramids that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra,  an edgeedge with one Cu(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra,  an edgeedge with one V(2)O4 tetrahedra, and  an edgeedge with one V(4)O4 tetrahedra. The Mg(1)-O(1) bond length is 2.05 Å. The Mg(1)-O(10) bond length is 2.06 Å. The Mg(1)-O(11) bond length is 2.37 Å. The Mg(1)-O(4) bond length is 2.17 Å. The Mg(1)-O(7) bond length is 2.30 Å. The Mg(1)-O(8) bond length is 2.31 Å. There are four inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-64°. The V(1)-O(1) bond length is 1.85 Å. The V(1)-O(2) bond length is 1.70 Å. The V(1)-O(4) bond length is 1.94 Å. The V(1)-O(6) bond length is 1.89 Å. In the second V site, V(2) is bonded to one O(3), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent V(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 31-60°. The V(2)-O(3) bond length is 1.71 Å. The V(2)-O(4) bond length is 1.82 Å. The V(2)-O(6) bond length is 1.76 Å. The V(2)-O(8) bond length is 1.73 Å. In the third V site, V(3) is bonded to one O(10), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and corners with two equivalent V(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-63°. The V(3)-O(10) bond length is 1.75 Å. The V(3)-O(5) bond length is 1.66 Å. The V(3)-O(7) bond length is 1.85 Å. The V(3)-O(9) bond length is 1.80 Å. In the fourth V site, V(4) is bonded to one O(11), one O(12), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent V(3)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 30-60°. The V(4)-O(11) bond length is 1.71 Å. The V(4)-O(12) bond length is 1.69 Å. The V(4)-O(7) bond length is 1.83 Å. The V(4)-O(9) bond length is 1.80 Å. Mn(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one V(1)O4 tetrahedra,  a cornercorner with one V(3)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with two equivalent Mg(1)O6 pentagonal pyramids. The Mn(1)-O(1) bond length is 2.22 Å. The Mn(1)-O(10) bond length is 2.33 Å. The Mn(1)-O(11) bond length is 2.16 Å. The Mn(1)-O(12) bond length is 2.15 Å. The Mn(1)-O(3) bond length is 2.13 Å. The Mn(1)-O(8) bond length is 2.14 Å. Cu(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(3), and one O(5) atom to form distorted CuO6 octahedra that share  a cornercorner with one V(2)O4 tetrahedra,  a cornercorner with one V(4)O4 tetrahedra, corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The Cu(1)-O(1) bond length is 2.20 Å. The Cu(1)-O(10) bond length is 2.41 Å. The Cu(1)-O(12) bond length is 2.45 Å. The Cu(1)-O(2) bond length is 1.96 Å. The Cu(1)-O(3) bond length is 2.30 Å. The Cu(1)-O(5) bond length is 1.96 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted tetrahedral geometry to one Mg(1), one V(1), one Mn(1), and one Cu(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one V(1) and one Cu(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one V(2), one Mn(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(1), and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(3) and one Cu(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1), one V(3), and one V(4) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Mg(1), one V(2), and one Mn(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one V(3) and one V(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one V(3), one Mn(1), and one Cu(1) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Mg(1), one V(4), and one Mn(1) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one V(4), one Mn(1), and one Cu(1) atom.