Sc2P3(HO3)3 crystallizes in the hexagonal P6_3/m space group. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form ScO6 octahedra that share corners with six equivalent P(1)HO3 tetrahedra and  a faceface with one Sc(1)O6 octahedra. P(1) is bonded to one H(1), one O(2), and two equivalent O(1) atoms to form distorted PHO3 tetrahedra that share corners with four equivalent Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-47°. H(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(1) is bonded in a bent 150 degrees geometry to one Sc(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Sc(1) and one P(1) atom.
Sc2P3(HO3)3 crystallizes in the hexagonal P6_3/m space group. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form ScO6 octahedra that share corners with six equivalent P(1)HO3 tetrahedra and  a faceface with one Sc(1)O6 octahedra. All Sc(1)-O(1) bond lengths are 2.03 Å. All Sc(1)-O(2) bond lengths are 2.22 Å. P(1) is bonded to one H(1), one O(2), and two equivalent O(1) atoms to form distorted PHO3 tetrahedra that share corners with four equivalent Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-47°. The P(1)-H(1) bond length is 1.41 Å. The P(1)-O(2) bond length is 1.55 Å. Both P(1)-O(1) bond lengths are 1.53 Å. H(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(1) is bonded in a bent 150 degrees geometry to one Sc(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Sc(1) and one P(1) atom.