SrCo(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(1), and two equivalent O(6) atoms. Co(1) is bonded to one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O5 trigonal bipyramid and  an edgeedge with one Co(1)O5 trigonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Sr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(2) atom. In the fifth O site, O(5) is bonded in an L-shaped geometry to one Co(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Co(1), and one P(2) atom.
SrCo(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(8), two equivalent O(1), and two equivalent O(6) atoms. The Sr(1)-O(2) bond length is 2.45 Å. The Sr(1)-O(3) bond length is 2.93 Å. The Sr(1)-O(4) bond length is 2.82 Å. The Sr(1)-O(8) bond length is 3.04 Å. There is one shorter (2.53 Å) and one longer (2.72 Å) Sr(1)-O(1) bond length. There is one shorter (2.55 Å) and one longer (2.74 Å) Sr(1)-O(6) bond length. Co(1) is bonded to one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The Co(1)-O(3) bond length is 1.90 Å. The Co(1)-O(4) bond length is 1.93 Å. The Co(1)-O(5) bond length is 1.91 Å. The Co(1)-O(7) bond length is 1.81 Å. The Co(1)-O(8) bond length is 1.96 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O5 trigonal bipyramids. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.51 Å. The P(1)-O(3) bond length is 1.59 Å. The P(1)-O(7) bond length is 1.59 Å. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O5 trigonal bipyramid and  an edgeedge with one Co(1)O5 trigonal bipyramid. The P(2)-O(4) bond length is 1.59 Å. The P(2)-O(5) bond length is 1.58 Å. The P(2)-O(6) bond length is 1.52 Å. The P(2)-O(8) bond length is 1.56 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Sr(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Co(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(2) atom. In the fifth O site, O(5) is bonded in an L-shaped geometry to one Co(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one Co(1), and one P(2) atom.