MgP2H10O11H2O crystallizes in the triclinic P-1 space group. The structure consists of two water molecules inside a MgP2H10O11 framework. In the MgP2H10O11 framework, Mg(1) is bonded to one O(1), one O(3), one O(5), one O(7), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), one O(4), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. In the second P site, P(2) is bonded to one O(11), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-48°. There are ten inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(3) is bonded in a single-bond geometry to one O(4) atom. In the third H site, H(4) is bonded in a single-bond geometry to one O(8) atom. In the fourth H site, H(6) is bonded in a distorted linear geometry to one O(10) and one O(5) atom. In the fifth H site, H(7) is bonded in a linear geometry to one O(11) and one O(9) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one O(12) and one O(7) atom. In the seventh H site, H(9) is bonded in a single-bond geometry to one O(3) atom. In the eighth H site, H(10) is bonded in a distorted linear geometry to one O(12) and one O(2) atom. In the ninth H site, H(11) is bonded in a single-bond geometry to one O(8) atom. In the tenth H site, H(12) is bonded in a single-bond geometry to one O(12) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mg(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(2) and one H(10) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Mg(1), one H(2), and one H(9) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one P(1) and one H(3) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mg(1), one P(2), and one H(6) atom. In the sixth O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1), one P(2), and one H(8) atom. In the seventh O site, O(8) is bonded in a distorted trigonal planar geometry to one Mg(1), one H(11), and one H(4) atom. In the eighth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one P(1), and one H(7) atom. In the ninth O site, O(10) is bonded in a bent 120 degrees geometry to one P(1) and one H(6) atom. In the tenth O site, O(11) is bonded in a water-like geometry to one P(2) and one H(7) atom. In the eleventh O site, O(12) is bonded in a distorted water-like geometry to one H(10), one H(12), and one H(8) atom.
MgP2H10O11H2O crystallizes in the triclinic P-1 space group. The structure consists of two water molecules inside a MgP2H10O11 framework. In the MgP2H10O11 framework, Mg(1) is bonded to one O(1), one O(3), one O(5), one O(7), one O(8), and one O(9) atom to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The Mg(1)-O(1) bond length is 2.07 Å. The Mg(1)-O(3) bond length is 2.13 Å. The Mg(1)-O(5) bond length is 2.17 Å. The Mg(1)-O(7) bond length is 2.13 Å. The Mg(1)-O(8) bond length is 2.08 Å. The Mg(1)-O(9) bond length is 2.07 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), one O(4), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. The P(1)-O(1) bond length is 1.51 Å. The P(1)-O(10) bond length is 1.60 Å. The P(1)-O(4) bond length is 1.60 Å. The P(1)-O(9) bond length is 1.52 Å. In the second P site, P(2) is bonded to one O(11), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-48°. The P(2)-O(11) bond length is 1.58 Å. The P(2)-O(2) bond length is 1.60 Å. The P(2)-O(5) bond length is 1.53 Å. The P(2)-O(7) bond length is 1.52 Å. There are ten inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.99 Å. In the second H site, H(3) is bonded in a single-bond geometry to one O(4) atom. The H(3)-O(4) bond length is 1.01 Å. In the third H site, H(4) is bonded in a single-bond geometry to one O(8) atom. The H(4)-O(8) bond length is 0.97 Å. In the fourth H site, H(6) is bonded in a distorted linear geometry to one O(10) and one O(5) atom. The H(6)-O(10) bond length is 1.02 Å. The H(6)-O(5) bond length is 1.60 Å. In the fifth H site, H(7) is bonded in a linear geometry to one O(11) and one O(9) atom. The H(7)-O(11) bond length is 1.03 Å. The H(7)-O(9) bond length is 1.54 Å. In the sixth H site, H(8) is bonded in a single-bond geometry to one O(12) and one O(7) atom. The H(8)-O(12) bond length is 1.01 Å. The H(8)-O(7) bond length is 1.68 Å. In the seventh H site, H(9) is bonded in a single-bond geometry to one O(3) atom. The H(9)-O(3) bond length is 0.98 Å. In the eighth H site, H(10) is bonded in a distorted linear geometry to one O(12) and one O(2) atom. The H(10)-O(12) bond length is 1.62 Å. The H(10)-O(2) bond length is 1.02 Å. In the ninth H site, H(11) is bonded in a single-bond geometry to one O(8) atom. The H(11)-O(8) bond length is 1.00 Å. In the tenth H site, H(12) is bonded in a single-bond geometry to one O(12) atom. The H(12)-O(12) bond length is 0.99 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mg(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(2) and one H(10) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Mg(1), one H(2), and one H(9) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one P(1) and one H(3) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mg(1), one P(2), and one H(6) atom. In the sixth O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1), one P(2), and one H(8) atom. In the seventh O site, O(8) is bonded in a distorted trigonal planar geometry to one Mg(1), one H(11), and one H(4) atom. In the eighth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one P(1), and one H(7) atom. In the ninth O site, O(10) is bonded in a bent 120 degrees geometry to one P(1) and one H(6) atom. In the tenth O site, O(11) is bonded in a water-like geometry to one P(2) and one H(7) atom. In the eleventh O site, O(12) is bonded in a distorted water-like geometry to one H(10), one H(12), and one H(8) atom.