KPO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing PO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one P(1) atom.
KPO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. There are a spread of K(1)-O(2) bond distances ranging from 2.74-2.89 Å. P(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing PO4 tetrahedra. Both P(1)-O(1) bond lengths are 1.61 Å. Both P(1)-O(2) bond lengths are 1.48 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one P(1) atom.