KMn6O12 crystallizes in the tetragonal I4/m space group. K(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the second O site, O(2) is bonded to one K(1), one Mn(1), and two equivalent Mn(2) atoms to form a mixture of distorted corner and edge-sharing OKMn3 trigonal pyramids. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent K(1), one Mn(1), and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms.
KMn6O12 crystallizes in the tetragonal I4/m space group. K(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. All K(1)-O(2) bond lengths are 2.74 Å. All K(1)-O(3) bond lengths are 3.07 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Mn(1)-O(1) bond length is 1.90 Å. The Mn(1)-O(3) bond length is 1.95 Å. Both Mn(1)-O(2) bond lengths are 1.92 Å. Both Mn(1)-O(4) bond lengths are 1.90 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. The Mn(2)-O(1) bond length is 1.89 Å. The Mn(2)-O(3) bond length is 1.93 Å. There is one shorter (1.93 Å) and one longer (1.94 Å) Mn(2)-O(2) bond length. There is one shorter (1.89 Å) and one longer (1.90 Å) Mn(2)-O(4) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the second O site, O(2) is bonded to one K(1), one Mn(1), and two equivalent Mn(2) atoms to form a mixture of distorted corner and edge-sharing OKMn3 trigonal pyramids. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent K(1), one Mn(1), and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mn(1) and two equivalent Mn(2) atoms.