K2V2Mn3(HO5)2 crystallizes in the monoclinic C2 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one H(2), one O(3), one O(6), one O(7), one O(9), and three equivalent O(5) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one H(1), one O(10), one O(4), one O(5), one O(8), and three equivalent O(6) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(4), 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,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra, and corners with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. In the second V site, V(2) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra, and corners with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(10), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. In the third Mn site, Mn(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra, and  an edgeedge with one Mn(5)O6 octahedra. In the fifth Mn site, Mn(5) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one K(2) and one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one K(1) and one O(2) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mn(2), one Mn(4), one Mn(5), and one H(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Mn(1), one Mn(3), one Mn(4), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one V(2), one Mn(2), and one Mn(5) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(2), one V(1), one Mn(1), and one Mn(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one V(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), three equivalent K(2), and one V(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one K(1), one V(1), one Mn(2), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(2), one V(2), one Mn(3), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one V(1), one Mn(4), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one K(2), one V(2), one Mn(1), and one Mn(4) atom.
K2V2Mn3(HO5)2 crystallizes in the monoclinic C2 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one H(2), one O(3), one O(6), one O(7), one O(9), and three equivalent O(5) atoms. The K(1)-H(2) bond length is 2.88 Å. The K(1)-O(3) bond length is 2.78 Å. The K(1)-O(6) bond length is 2.69 Å. The K(1)-O(7) bond length is 2.76 Å. The K(1)-O(9) bond length is 2.77 Å. There are a spread of K(1)-O(5) bond distances ranging from 2.71-3.12 Å. In the second K site, K(2) is bonded in a 8-coordinate geometry to one H(1), one O(10), one O(4), one O(5), one O(8), and three equivalent O(6) atoms. The K(2)-H(1) bond length is 2.89 Å. The K(2)-O(10) bond length is 2.76 Å. The K(2)-O(4) bond length is 2.79 Å. The K(2)-O(5) bond length is 2.68 Å. The K(2)-O(8) bond length is 2.76 Å. There is one shorter (2.72 Å) and two longer (3.11 Å) K(2)-O(6) bond lengths. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(4), 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,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra, and corners with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. The V(1)-O(4) bond length is 1.76 Å. The V(1)-O(5) bond length is 1.70 Å. The V(1)-O(7) bond length is 1.75 Å. The V(1)-O(9) bond length is 1.75 Å. In the second V site, V(2) is bonded to one O(10), one O(3), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra, and corners with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-55°. The V(2)-O(10) bond length is 1.75 Å. The V(2)-O(3) bond length is 1.76 Å. The V(2)-O(6) bond length is 1.70 Å. The V(2)-O(8) bond length is 1.75 Å. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(10), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. Both Mn(1)-O(10) bond lengths are 2.19 Å. Both Mn(1)-O(2) bond lengths are 2.11 Å. Both Mn(1)-O(4) bond lengths are 2.14 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. Both Mn(2)-O(1) bond lengths are 2.12 Å. Both Mn(2)-O(3) bond lengths are 2.14 Å. Both Mn(2)-O(7) bond lengths are 2.18 Å. In the third Mn site, Mn(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. Both Mn(3)-O(2) bond lengths are 2.11 Å. Both Mn(3)-O(4) bond lengths are 2.14 Å. Both Mn(3)-O(8) bond lengths are 2.19 Å. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra, and  an edgeedge with one Mn(5)O6 octahedra. The Mn(4)-O(1) bond length is 2.09 Å. The Mn(4)-O(10) bond length is 2.20 Å. The Mn(4)-O(2) bond length is 2.09 Å. The Mn(4)-O(7) bond length is 2.20 Å. The Mn(4)-O(8) bond length is 2.19 Å. The Mn(4)-O(9) bond length is 2.19 Å. In the fifth Mn site, Mn(5) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. Both Mn(5)-O(1) bond lengths are 2.13 Å. Both Mn(5)-O(3) bond lengths are 2.14 Å. Both Mn(5)-O(9) bond lengths are 2.17 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one K(2) and one O(1) atom. The H(1)-O(1) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one K(1) and one O(2) atom. The H(2)-O(2) bond length is 0.98 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mn(2), one Mn(4), one Mn(5), and one H(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Mn(1), one Mn(3), one Mn(4), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one V(2), one Mn(2), and one Mn(5) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(2), one V(1), one Mn(1), and one Mn(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one V(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), three equivalent K(2), and one V(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one K(1), one V(1), one Mn(2), and one Mn(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(2), one V(2), one Mn(3), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one V(1), one Mn(4), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one K(2), one V(2), one Mn(1), and one Mn(4) atom.