P2S2O3 is alpha Po structured and crystallizes in the tetragonal I-4c2 space group. The structure is zero-dimensional and consists of four P2S2O3 clusters. P(1) is bonded to one S(1), one O(1), and two equivalent O(2) atoms to form distorted corner-sharing PSO3 tetrahedra. S(1) is bonded in a single-bond geometry to one P(1) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms.
P2S2O3 is alpha Po structured and crystallizes in the tetragonal I-4c2 space group. The structure is zero-dimensional and consists of four P2S2O3 clusters. P(1) is bonded to one S(1), one O(1), and two equivalent O(2) atoms to form distorted corner-sharing PSO3 tetrahedra. The P(1)-S(1) bond length is 1.86 Å. The P(1)-O(1) bond length is 1.62 Å. Both P(1)-O(2) bond lengths are 1.61 Å. S(1) is bonded in a single-bond geometry to one P(1) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms.