Ca2MnP2(H2O5)2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. 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 Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Ca(1), one Mn(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ca(1), one P(1), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Ca(1), one P(1), and one H(2) atom.
Ca2MnP2(H2O5)2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. The Ca(1)-O(1) bond length is 2.45 Å. The Ca(1)-O(4) bond length is 2.36 Å. There is one shorter (2.50 Å) and one longer (2.75 Å) Ca(1)-O(2) bond length. There is one shorter (2.52 Å) and one longer (2.53 Å) Ca(1)-O(3) bond length. There is one shorter (2.48 Å) and one longer (2.51 Å) Ca(1)-O(5) bond length. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. Both Mn(1)-O(1) bond lengths are 2.22 Å. Both Mn(1)-O(2) bond lengths are 2.16 Å. Both Mn(1)-O(3) bond lengths are 2.31 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 Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. The P(1)-O(2) bond length is 1.57 Å. The P(1)-O(3) bond length is 1.57 Å. The P(1)-O(4) bond length is 1.53 Å. The P(1)-O(5) bond length is 1.57 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(1) and one O(4) atom. The H(1)-O(1) bond length is 1.01 Å. The H(1)-O(4) bond length is 1.65 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) and one O(5) atom. The H(2)-O(1) bond length is 1.00 Å. The H(2)-O(5) bond length is 1.71 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Ca(1), one Mn(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ca(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ca(1), one P(1), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Ca(1), one P(1), and one H(2) atom.