KMn(PO3)3 crystallizes in the hexagonal P-6c2 space group. K(1) is bonded to six equivalent O(1) atoms to form distorted KO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with three equivalent Mn(1)O6 octahedra. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with three equivalent K(1)O6 octahedra. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent K(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-60°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms.
KMn(PO3)3 crystallizes in the hexagonal P-6c2 space group. K(1) is bonded to six equivalent O(1) atoms to form distorted KO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with three equivalent Mn(1)O6 octahedra. All K(1)-O(1) bond lengths are 2.81 Å. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent P(1)O4 tetrahedra and edges with three equivalent K(1)O6 octahedra. All Mn(1)-O(1) bond lengths are 2.20 Å. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form PO4 tetrahedra that share corners with two equivalent K(1)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-60°. Both P(1)-O(1) bond lengths are 1.50 Å. Both P(1)-O(2) bond lengths are 1.62 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent P(1) atoms.