KMnO4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 11-coordinate geometry to two equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms. Mn(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent K(1) and one Mn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Mn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to three equivalent K(1) and one Mn(1) atom.
KMnO4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 11-coordinate geometry to two equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms. There is one shorter (2.92 Å) and one longer (3.23 Å) K(1)-O(1) bond length. There are two shorter (3.18 Å) and one longer (3.30 Å) K(1)-O(3) bond length. There are a spread of K(1)-O(2) bond distances ranging from 2.86-3.23 Å. Mn(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(2) atoms. The Mn(1)-O(1) bond length is 1.62 Å. The Mn(1)-O(3) bond length is 1.62 Å. Both Mn(1)-O(2) bond lengths are 1.62 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to two equivalent K(1) and one Mn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Mn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to three equivalent K(1) and one Mn(1) atom.