SrCo2(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(6), one O(7), two equivalent O(2), and two equivalent O(8) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), and two equivalent O(5) atoms. 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(4) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one Co(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Co(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom.
SrCo2(PO4)2 crystallizes in the triclinic P-1 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(6), one O(7), two equivalent O(2), and two equivalent O(8) atoms. The Sr(1)-O(1) bond length is 2.68 Å. The Sr(1)-O(3) bond length is 2.77 Å. The Sr(1)-O(6) bond length is 2.56 Å. The Sr(1)-O(7) bond length is 2.65 Å. There is one shorter (2.59 Å) and one longer (2.69 Å) Sr(1)-O(2) bond length. There is one shorter (2.55 Å) and one longer (2.93 Å) Sr(1)-O(8) bond length. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The Co(1)-O(1) bond length is 1.95 Å. The Co(1)-O(4) bond length is 2.01 Å. The Co(1)-O(6) bond length is 1.96 Å. The Co(1)-O(7) bond length is 1.98 Å. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), and two equivalent O(5) atoms. The Co(2)-O(2) bond length is 2.63 Å. The Co(2)-O(3) bond length is 1.98 Å. The Co(2)-O(4) bond length is 2.02 Å. There is one shorter (1.98 Å) and one longer (2.04 Å) Co(2)-O(5) bond length. 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(4) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.55 Å. The P(1)-O(4) bond length is 1.59 Å. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra. The P(2)-O(5) bond length is 1.59 Å. The P(2)-O(6) bond length is 1.56 Å. The P(2)-O(7) bond length is 1.56 Å. The P(2)-O(8) bond length is 1.52 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Co(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Sr(1), one Co(2), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Co(1), one Co(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Co(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Sr(1), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one P(2) atom.