MgCo4(PO3)12 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(13), one O(16), one O(19), one O(22), one O(30), and one O(36) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(33), one O(34), one O(4), and one O(8) atom to form CoO6 octahedra that share  a cornercorner with one P(11)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(19), one O(24), one O(25), one O(29), and one O(30) atom to form distorted CoO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. In the third Co site, Co(3) is bonded to one O(15), one O(16), one O(20), one O(21), one O(26), and one O(9) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(11)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. In the fourth Co site, Co(4) is bonded to one O(11), one O(12), one O(18), one O(27), one O(6), and one O(7) atom to form CoO6 octahedra that share  a cornercorner with one P(10)O4 tetrahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. There are twelve inequivalent P sites. In the first P site, P(1) is bonded to one O(25), one O(26), one O(31), and one O(35) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 42°. In the second P site, P(2) is bonded to one O(23), one O(29), one O(32), and one O(33) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(10)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 42°. In the third P site, P(3) is bonded to one O(2), one O(30), one O(31), and one O(34) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 14°. In the fourth P site, P(4) is bonded to one O(27), one O(28), one O(32), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(11)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-49°. In the fifth P site, P(5) is bonded to one O(10), one O(2), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-48°. In the sixth P site, P(6) is bonded to one O(13), one O(17), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(10)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the seventh P site, P(7) is bonded to one O(11), one O(14), one O(15), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(12)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 14-45°. In the eighth P site, P(8) is bonded to one O(12), one O(13), one O(16), and one O(22) atom to form distorted PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(11)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-30°. In the ninth P site, P(9) is bonded to one O(10), one O(14), one O(19), and one O(20) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 47°. In the tenth P site, P(10) is bonded to one O(17), one O(18), one O(23), and one O(36) atom to form PO4 tetrahedra that share  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. In the eleventh P site, P(11) is bonded to one O(1), one O(21), one O(22), and one O(28) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles are 45°. In the twelfth P site, P(12) is bonded to one O(24), one O(35), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 45°. There are thirty-six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(11) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(3) and one P(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(12) and one P(7) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Co(4) and one P(12) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(6) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Co(1) and one P(6) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(5) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one P(5) and one P(9) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Co(4) and one P(7) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Co(4) and one P(8) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one P(6), and one P(8) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one P(7) and one P(9) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(7) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mg(1), one Co(3), and one P(8) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one P(10) and one P(6) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(10) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(9) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Co(3) and one P(9) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(11) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Mg(1), one P(11), and one P(8) atom. In the twenty-third O site, O(23) is bonded in a bent 150 degrees geometry to one P(10) and one P(2) atom. In the twenty-fourth O site, O(24) is bonded in a bent 120 degrees geometry to one Co(2) and one P(12) atom. In the twenty-fifth O site, O(25) is bonded in a bent 120 degrees geometry to one Co(2) and one P(1) atom. In the twenty-sixth O site, O(26) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(1) atom. In the twenty-seventh O site, O(27) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(4) atom. In the twenty-eighth O site, O(28) is bonded in a bent 120 degrees geometry to one P(11) and one P(4) atom. In the twenty-ninth O site, O(29) is bonded in a linear geometry to one Co(2) and one P(2) atom. In the thirtieth O site, O(30) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(3) atom. In the thirty-first O site, O(31) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(3) atom. In the thirty-second O site, O(32) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the thirty-third O site, O(33) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(2) atom. In the thirty-fourth O site, O(34) is bonded in a distorted linear geometry to one Co(1) and one P(3) atom. In the thirty-fifth O site, O(35) is bonded in a bent 120 degrees geometry to one P(1) and one P(12) atom. In the thirty-sixth O site, O(36) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one P(10) atom.
MgCo4(PO3)12 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(13), one O(16), one O(19), one O(22), one O(30), and one O(36) atom. The Mg(1)-O(13) bond length is 2.62 Å. The Mg(1)-O(16) bond length is 2.09 Å. The Mg(1)-O(19) bond length is 2.00 Å. The Mg(1)-O(22) bond length is 2.34 Å. The Mg(1)-O(30) bond length is 1.97 Å. The Mg(1)-O(36) bond length is 1.97 Å. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(33), one O(34), one O(4), and one O(8) atom to form CoO6 octahedra that share  a cornercorner with one P(11)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Co(1)-O(1) bond length is 1.98 Å. The Co(1)-O(3) bond length is 2.01 Å. The Co(1)-O(33) bond length is 1.99 Å. The Co(1)-O(34) bond length is 2.26 Å. The Co(1)-O(4) bond length is 1.97 Å. The Co(1)-O(8) bond length is 1.97 Å. In the second Co site, Co(2) is bonded to one O(19), one O(24), one O(25), one O(29), and one O(30) atom to form distorted CoO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The Co(2)-O(19) bond length is 2.22 Å. The Co(2)-O(24) bond length is 2.01 Å. The Co(2)-O(25) bond length is 2.01 Å. The Co(2)-O(29) bond length is 2.02 Å. The Co(2)-O(30) bond length is 2.20 Å. In the third Co site, Co(3) is bonded to one O(15), one O(16), one O(20), one O(21), one O(26), and one O(9) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(11)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The Co(3)-O(15) bond length is 1.96 Å. The Co(3)-O(16) bond length is 2.61 Å. The Co(3)-O(20) bond length is 2.01 Å. The Co(3)-O(21) bond length is 2.02 Å. The Co(3)-O(26) bond length is 2.05 Å. The Co(3)-O(9) bond length is 2.04 Å. In the fourth Co site, Co(4) is bonded to one O(11), one O(12), one O(18), one O(27), one O(6), and one O(7) atom to form CoO6 octahedra that share  a cornercorner with one P(10)O4 tetrahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The Co(4)-O(11) bond length is 2.20 Å. The Co(4)-O(12) bond length is 2.06 Å. The Co(4)-O(18) bond length is 2.00 Å. The Co(4)-O(27) bond length is 2.01 Å. The Co(4)-O(6) bond length is 2.06 Å. The Co(4)-O(7) bond length is 2.02 Å. There are twelve inequivalent P sites. In the first P site, P(1) is bonded to one O(25), one O(26), one O(31), and one O(35) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(12)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 42°. The P(1)-O(25) bond length is 1.50 Å. The P(1)-O(26) bond length is 1.50 Å. The P(1)-O(31) bond length is 1.63 Å. The P(1)-O(35) bond length is 1.61 Å. In the second P site, P(2) is bonded to one O(23), one O(29), one O(32), and one O(33) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(10)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 42°. The P(2)-O(23) bond length is 1.61 Å. The P(2)-O(29) bond length is 1.49 Å. The P(2)-O(32) bond length is 1.62 Å. The P(2)-O(33) bond length is 1.51 Å. In the third P site, P(3) is bonded to one O(2), one O(30), one O(31), and one O(34) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 14°. The P(3)-O(2) bond length is 1.60 Å. The P(3)-O(30) bond length is 1.53 Å. The P(3)-O(31) bond length is 1.61 Å. The P(3)-O(34) bond length is 1.49 Å. In the fourth P site, P(4) is bonded to one O(27), one O(28), one O(32), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(11)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 46-49°. The P(4)-O(27) bond length is 1.50 Å. The P(4)-O(28) bond length is 1.62 Å. The P(4)-O(32) bond length is 1.61 Å. The P(4)-O(4) bond length is 1.51 Å. In the fifth P site, P(5) is bonded to one O(10), one O(2), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-48°. The P(5)-O(10) bond length is 1.63 Å. The P(5)-O(2) bond length is 1.61 Å. The P(5)-O(3) bond length is 1.51 Å. The P(5)-O(9) bond length is 1.50 Å. In the sixth P site, P(6) is bonded to one O(13), one O(17), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(10)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-50°. The P(6)-O(13) bond length is 1.63 Å. The P(6)-O(17) bond length is 1.61 Å. The P(6)-O(7) bond length is 1.49 Å. The P(6)-O(8) bond length is 1.51 Å. In the seventh P site, P(7) is bonded to one O(11), one O(14), one O(15), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(12)O4 tetrahedra, and  a cornercorner with one P(9)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 14-45°. The P(7)-O(11) bond length is 1.49 Å. The P(7)-O(14) bond length is 1.63 Å. The P(7)-O(15) bond length is 1.51 Å. The P(7)-O(5) bond length is 1.60 Å. In the eighth P site, P(8) is bonded to one O(12), one O(13), one O(16), and one O(22) atom to form distorted PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(11)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-30°. The P(8)-O(12) bond length is 1.47 Å. The P(8)-O(13) bond length is 1.63 Å. The P(8)-O(16) bond length is 1.52 Å. The P(8)-O(22) bond length is 1.65 Å. In the ninth P site, P(9) is bonded to one O(10), one O(14), one O(19), and one O(20) atom to form PO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 47°. The P(9)-O(10) bond length is 1.61 Å. The P(9)-O(14) bond length is 1.57 Å. The P(9)-O(19) bond length is 1.53 Å. The P(9)-O(20) bond length is 1.50 Å. In the tenth P site, P(10) is bonded to one O(17), one O(18), one O(23), and one O(36) atom to form PO4 tetrahedra that share  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. The P(10)-O(17) bond length is 1.63 Å. The P(10)-O(18) bond length is 1.50 Å. The P(10)-O(23) bond length is 1.58 Å. The P(10)-O(36) bond length is 1.51 Å. In the eleventh P site, P(11) is bonded to one O(1), one O(21), one O(22), and one O(28) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles are 45°. The P(11)-O(1) bond length is 1.50 Å. The P(11)-O(21) bond length is 1.49 Å. The P(11)-O(22) bond length is 1.63 Å. The P(11)-O(28) bond length is 1.62 Å. In the twelfth P site, P(12) is bonded to one O(24), one O(35), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Co(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 45°. The P(12)-O(24) bond length is 1.50 Å. The P(12)-O(35) bond length is 1.64 Å. The P(12)-O(5) bond length is 1.61 Å. The P(12)-O(6) bond length is 1.50 Å. There are thirty-six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(11) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(3) and one P(5) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(5) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(12) and one P(7) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Co(4) and one P(12) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(6) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Co(1) and one P(6) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(5) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one P(5) and one P(9) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to one Co(4) and one P(7) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Co(4) and one P(8) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Mg(1), one P(6), and one P(8) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one P(7) and one P(9) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(7) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mg(1), one Co(3), and one P(8) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one P(10) and one P(6) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(10) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(9) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Co(3) and one P(9) atom. In the twenty-first O site, O(21) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(11) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Mg(1), one P(11), and one P(8) atom. In the twenty-third O site, O(23) is bonded in a bent 150 degrees geometry to one P(10) and one P(2) atom. In the twenty-fourth O site, O(24) is bonded in a bent 120 degrees geometry to one Co(2) and one P(12) atom. In the twenty-fifth O site, O(25) is bonded in a bent 120 degrees geometry to one Co(2) and one P(1) atom. In the twenty-sixth O site, O(26) is bonded in a distorted bent 150 degrees geometry to one Co(3) and one P(1) atom. In the twenty-seventh O site, O(27) is bonded in a distorted bent 120 degrees geometry to one Co(4) and one P(4) atom. In the twenty-eighth O site, O(28) is bonded in a bent 120 degrees geometry to one P(11) and one P(4) atom. In the twenty-ninth O site, O(29) is bonded in a linear geometry to one Co(2) and one P(2) atom. In the thirtieth O site, O(30) is bonded in a 3-coordinate geometry to one Mg(1), one Co(2), and one P(3) atom. In the thirty-first O site, O(31) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(3) atom. In the thirty-second O site, O(32) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the thirty-third O site, O(33) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(2) atom. In the thirty-fourth O site, O(34) is bonded in a distorted linear geometry to one Co(1) and one P(3) atom. In the thirty-fifth O site, O(35) is bonded in a bent 120 degrees geometry to one P(1) and one P(12) atom. In the thirty-sixth O site, O(36) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one P(10) atom.