CrPO4 crystallizes in the trigonal P31c space group. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted CrO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Cr(1)O5 trigonal bipyramids. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1) and three equivalent O(2) atoms to form PO4 tetrahedra that share corners with three equivalent Cr(1)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(6) and three equivalent O(4) atoms to form PO4 tetrahedra that share corners with six equivalent Cr(1)O5 trigonal bipyramids. In the third P site, P(3) is bonded to one O(5) and three equivalent O(3) atoms to form PO4 tetrahedra that share corners with six equivalent Cr(1)O5 trigonal bipyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cr(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to three equivalent Cr(1) and one P(2) atom.
CrPO4 crystallizes in the trigonal P31c space group. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted CrO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent Cr(1)O5 trigonal bipyramids. The Cr(1)-O(2) bond length is 1.90 Å. The Cr(1)-O(3) bond length is 1.92 Å. The Cr(1)-O(4) bond length is 1.89 Å. The Cr(1)-O(5) bond length is 2.19 Å. The Cr(1)-O(6) bond length is 2.22 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1) and three equivalent O(2) atoms to form PO4 tetrahedra that share corners with three equivalent Cr(1)O5 trigonal bipyramids. The P(1)-O(1) bond length is 1.47 Å. All P(1)-O(2) bond lengths are 1.61 Å. In the second P site, P(2) is bonded to one O(6) and three equivalent O(4) atoms to form PO4 tetrahedra that share corners with six equivalent Cr(1)O5 trigonal bipyramids. The P(2)-O(6) bond length is 1.62 Å. All P(2)-O(4) bond lengths are 1.52 Å. In the third P site, P(3) is bonded to one O(5) and three equivalent O(3) atoms to form PO4 tetrahedra that share corners with six equivalent Cr(1)O5 trigonal bipyramids. The P(3)-O(5) bond length is 1.65 Å. All P(3)-O(3) bond lengths are 1.53 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Cr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cr(1) and one P(3) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to three equivalent Cr(1) and one P(2) atom.