Co3Cd(PO3)8 crystallizes in the monoclinic C2 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(11), one O(12), one O(3), one O(4), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Cd(1)O6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. Cd(1) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(3), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 19-57°. In the second P site, P(2) is bonded to one O(12), one O(4), one O(5), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-59°. In the third P site, P(3) is bonded to one O(1), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-56°. In the fourth P site, P(4) is bonded to one O(10), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-58°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cd(1) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Co(2) and one P(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Cd(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one P(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Co(1), one Cd(1), and one P(4) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Co(1) and one P(2) atom.
Co3Cd(PO3)8 crystallizes in the monoclinic C2 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(11), one O(12), one O(3), one O(4), and one O(9) atom to form CoO6 octahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Cd(1)O6 octahedra. The Co(1)-O(10) bond length is 2.12 Å. The Co(1)-O(11) bond length is 2.06 Å. The Co(1)-O(12) bond length is 2.04 Å. The Co(1)-O(3) bond length is 2.16 Å. The Co(1)-O(4) bond length is 2.15 Å. The Co(1)-O(9) bond length is 2.12 Å. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms to form CoO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. Both Co(2)-O(2) bond lengths are 2.05 Å. Both Co(2)-O(4) bond lengths are 2.21 Å. Both Co(2)-O(9) bond lengths are 2.25 Å. Cd(1) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. Both Cd(1)-O(1) bond lengths are 2.20 Å. Both Cd(1)-O(10) bond lengths are 2.34 Å. Both Cd(1)-O(3) bond lengths are 2.30 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(3), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 19-57°. The P(1)-O(11) bond length is 1.48 Å. The P(1)-O(3) bond length is 1.51 Å. The P(1)-O(6) bond length is 1.62 Å. The P(1)-O(7) bond length is 1.61 Å. In the second P site, P(2) is bonded to one O(12), one O(4), one O(5), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-59°. The P(2)-O(12) bond length is 1.48 Å. The P(2)-O(4) bond length is 1.52 Å. The P(2)-O(5) bond length is 1.61 Å. The P(2)-O(8) bond length is 1.62 Å. In the third P site, P(3) is bonded to one O(1), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-56°. The P(3)-O(1) bond length is 1.48 Å. The P(3)-O(5) bond length is 1.60 Å. The P(3)-O(7) bond length is 1.62 Å. The P(3)-O(9) bond length is 1.53 Å. In the fourth P site, P(4) is bonded to one O(10), one O(2), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 27-58°. The P(4)-O(10) bond length is 1.53 Å. The P(4)-O(2) bond length is 1.49 Å. The P(4)-O(6) bond length is 1.61 Å. The P(4)-O(8) bond length is 1.61 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cd(1) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Co(2) and one P(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Cd(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one P(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Co(1), one Cd(1), and one P(4) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Co(1) and one P(2) atom.