CsMgMnP3HO10 crystallizes in the triclinic P1 space group. Cs(1) is bonded in a 8-coordinate geometry to one Mg(1), one O(1), one O(10), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. Mg(1) is bonded in a 4-coordinate geometry to one Cs(1), one O(3), one O(4), one O(8), and one O(9) atom. Mn(1) is bonded to one O(1), one O(10), one O(2), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 37-40°. In the second P site, P(2) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 23-50°. In the third P site, P(3) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 19-50°. H(1) is bonded in a linear geometry to one O(3) and one O(4) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mg(1), one P(2), and one H(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one P(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Mn(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one Mg(1), one P(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(1), one P(1), and one P(3) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(2) atom.
CsMgMnP3HO10 crystallizes in the triclinic P1 space group. Cs(1) is bonded in a 8-coordinate geometry to one Mg(1), one O(1), one O(10), one O(2), one O(5), one O(6), one O(7), and one O(8) atom. The Cs(1)-Mg(1) bond length is 3.65 Å. The Cs(1)-O(1) bond length is 3.14 Å. The Cs(1)-O(10) bond length is 3.29 Å. The Cs(1)-O(2) bond length is 3.14 Å. The Cs(1)-O(5) bond length is 3.38 Å. The Cs(1)-O(6) bond length is 3.30 Å. The Cs(1)-O(7) bond length is 3.40 Å. The Cs(1)-O(8) bond length is 3.76 Å. Mg(1) is bonded in a 4-coordinate geometry to one Cs(1), one O(3), one O(4), one O(8), and one O(9) atom. The Mg(1)-O(3) bond length is 2.05 Å. The Mg(1)-O(4) bond length is 2.28 Å. The Mg(1)-O(8) bond length is 2.49 Å. The Mg(1)-O(9) bond length is 2.36 Å. Mn(1) is bonded to one O(1), one O(10), one O(2), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The Mn(1)-O(1) bond length is 2.16 Å. The Mn(1)-O(10) bond length is 2.24 Å. The Mn(1)-O(2) bond length is 2.15 Å. The Mn(1)-O(5) bond length is 2.26 Å. The Mn(1)-O(6) bond length is 2.20 Å. The Mn(1)-O(7) bond length is 2.29 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 37-40°. The P(1)-O(1) bond length is 1.50 Å. The P(1)-O(2) bond length is 1.50 Å. The P(1)-O(8) bond length is 1.63 Å. The P(1)-O(9) bond length is 1.66 Å. In the second P site, P(2) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 23-50°. The P(2)-O(10) bond length is 1.51 Å. The P(2)-O(3) bond length is 1.57 Å. The P(2)-O(6) bond length is 1.51 Å. The P(2)-O(8) bond length is 1.71 Å. In the third P site, P(3) is bonded to one O(4), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 19-50°. The P(3)-O(4) bond length is 1.61 Å. The P(3)-O(5) bond length is 1.50 Å. The P(3)-O(7) bond length is 1.50 Å. The P(3)-O(9) bond length is 1.69 Å. H(1) is bonded in a linear geometry to one O(3) and one O(4) atom. The H(1)-O(3) bond length is 1.49 Å. The H(1)-O(4) bond length is 1.05 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Mg(1), one P(2), and one H(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one P(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Mn(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Cs(1), one Mg(1), one P(1), and one P(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(1), one P(1), and one P(3) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one Cs(1), one Mn(1), and one P(2) atom.