MgV2P2(HO5)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form MgO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form VO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent V(2)O6 octahedra, and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. In the second V site, V(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent V(1)O6 octahedra, and corners with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-47°. H(1) is bonded in a single-bond geometry to one O(1) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mg(1), one V(1), one V(2), and one H(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one V(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one P(1) atom.
MgV2P2(HO5)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form MgO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. Both Mg(1)-O(1) bond lengths are 2.13 Å. Both Mg(1)-O(4) bond lengths are 2.10 Å. Both Mg(1)-O(5) bond lengths are 2.04 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form VO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent V(2)O6 octahedra, and corners with four equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. Both V(1)-O(1) bond lengths are 2.13 Å. Both V(1)-O(2) bond lengths are 2.03 Å. Both V(1)-O(3) bond lengths are 2.03 Å. In the second V site, V(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with four equivalent P(1)O4 tetrahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. Both V(2)-O(1) bond lengths are 2.08 Å. Both V(2)-O(4) bond lengths are 2.01 Å. Both V(2)-O(5) bond lengths are 2.02 Å. P(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent V(1)O6 octahedra, and corners with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-47°. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.53 Å. The P(1)-O(4) bond length is 1.57 Å. The P(1)-O(5) bond length is 1.57 Å. H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.98 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mg(1), one V(1), one V(2), and one H(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one V(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one P(1) atom.