MgFe3Co2Sb(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(12), one O(23), one O(4), one O(6), and one O(7) atom to form distorted MgO6 pentagonal pyramids that share  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,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  a faceface with one Fe(2)O6 octahedra. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 6-coordinate geometry to one O(10), one O(22), one O(23), one O(24), one O(6), and one O(8) atom. In the second Fe site, Fe(2) is bonded to one O(12), one O(14), one O(20), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. In the third Fe site, Fe(3) is bonded to one O(1), one O(15), one O(17), one O(19), one O(2), and one O(3) atom to form FeO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(21), one O(4), and one O(7) atom. In the second Co site, Co(2) is bonded to one O(10), one O(15), one O(17), one O(19), one O(6), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra,  an edgeedge with one Mg(1)O6 pentagonal pyramid, and  a faceface with one Fe(3)O6 octahedra. Sb(1) is bonded to one O(11), one O(13), one O(16), one O(18), one O(21), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one P(1)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. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 25-49°. In the second P site, P(2) is bonded to one O(1), one O(13), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 18-46°. In the third P site, P(3) is bonded to one O(10), one O(14), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 27-48°. In the fourth P site, P(4) is bonded to one O(11), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 9-55°. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(24) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 38-49°. In the sixth P site, P(6) is bonded to one O(19), one O(20), one O(21), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-56°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(3) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(2), one Co(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Co(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(2), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a linear geometry to one Fe(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Fe(1), one Co(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Mg(1), one Fe(2), and one P(5) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(3) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(6) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(6) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(6) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(1), and one P(4) atom. In the twenty-fourth O site, O(24) is bonded in a linear geometry to one Fe(1) and one P(5) atom.
MgFe3Co2Sb(PO4)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(12), one O(23), one O(4), one O(6), and one O(7) atom to form distorted MgO6 pentagonal pyramids that share  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,  an edgeedge with one Co(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  a faceface with one Fe(2)O6 octahedra. The Mg(1)-O(10) bond length is 2.17 Å. The Mg(1)-O(12) bond length is 2.09 Å. The Mg(1)-O(23) bond length is 2.02 Å. The Mg(1)-O(4) bond length is 2.17 Å. The Mg(1)-O(6) bond length is 2.11 Å. The Mg(1)-O(7) bond length is 2.41 Å. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 6-coordinate geometry to one O(10), one O(22), one O(23), one O(24), one O(6), and one O(8) atom. The Fe(1)-O(10) bond length is 2.41 Å. The Fe(1)-O(22) bond length is 2.04 Å. The Fe(1)-O(23) bond length is 2.33 Å. The Fe(1)-O(24) bond length is 1.98 Å. The Fe(1)-O(6) bond length is 2.16 Å. The Fe(1)-O(8) bond length is 2.22 Å. In the second Fe site, Fe(2) is bonded to one O(12), one O(14), one O(20), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Mg(1)O6 pentagonal pyramid. The Fe(2)-O(12) bond length is 2.07 Å. The Fe(2)-O(14) bond length is 2.11 Å. The Fe(2)-O(20) bond length is 1.90 Å. The Fe(2)-O(4) bond length is 2.11 Å. The Fe(2)-O(7) bond length is 2.19 Å. The Fe(2)-O(9) bond length is 1.90 Å. In the third Fe site, Fe(3) is bonded to one O(1), one O(15), one O(17), one O(19), one O(2), and one O(3) atom to form FeO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra, and  a faceface with one Co(2)O6 octahedra. The Fe(3)-O(1) bond length is 2.03 Å. The Fe(3)-O(15) bond length is 2.19 Å. The Fe(3)-O(17) bond length is 2.17 Å. The Fe(3)-O(19) bond length is 2.13 Å. The Fe(3)-O(2) bond length is 2.06 Å. The Fe(3)-O(3) bond length is 2.06 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(18), one O(21), one O(4), and one O(7) atom. The Co(1)-O(11) bond length is 2.21 Å. The Co(1)-O(14) bond length is 2.08 Å. The Co(1)-O(18) bond length is 2.41 Å. The Co(1)-O(21) bond length is 2.21 Å. The Co(1)-O(4) bond length is 2.27 Å. The Co(1)-O(7) bond length is 2.19 Å. In the second Co site, Co(2) is bonded to one O(10), one O(15), one O(17), one O(19), one O(6), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one P(1)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,  a cornercorner with one P(6)O4 tetrahedra,  an edgeedge with one Mg(1)O6 pentagonal pyramid, and  a faceface with one Fe(3)O6 octahedra. The Co(2)-O(10) bond length is 2.32 Å. The Co(2)-O(15) bond length is 2.14 Å. The Co(2)-O(17) bond length is 2.11 Å. The Co(2)-O(19) bond length is 2.12 Å. The Co(2)-O(6) bond length is 2.30 Å. The Co(2)-O(8) bond length is 2.08 Å. Sb(1) is bonded to one O(11), one O(13), one O(16), one O(18), one O(21), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one P(1)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 Sb(1)-O(11) bond length is 2.04 Å. The Sb(1)-O(13) bond length is 1.97 Å. The Sb(1)-O(16) bond length is 1.95 Å. The Sb(1)-O(18) bond length is 2.01 Å. The Sb(1)-O(21) bond length is 2.00 Å. The Sb(1)-O(5) bond length is 1.96 Å. There are six inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  an edgeedge with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 25-49°. The P(1)-O(3) bond length is 1.48 Å. The P(1)-O(4) bond length is 1.60 Å. The P(1)-O(5) bond length is 1.57 Å. The P(1)-O(6) bond length is 1.57 Å. In the second P site, P(2) is bonded to one O(1), one O(13), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 18-46°. The P(2)-O(1) bond length is 1.50 Å. The P(2)-O(13) bond length is 1.59 Å. The P(2)-O(7) bond length is 1.60 Å. The P(2)-O(8) bond length is 1.54 Å. In the third P site, P(3) is bonded to one O(10), one O(14), one O(16), and one O(2) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 27-48°. The P(3)-O(10) bond length is 1.57 Å. The P(3)-O(14) bond length is 1.57 Å. The P(3)-O(16) bond length is 1.58 Å. The P(3)-O(2) bond length is 1.49 Å. In the fourth P site, P(4) is bonded to one O(11), one O(15), one O(23), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 9-55°. The P(4)-O(11) bond length is 1.63 Å. The P(4)-O(15) bond length is 1.52 Å. The P(4)-O(23) bond length is 1.54 Å. The P(4)-O(9) bond length is 1.53 Å. In the fifth P site, P(5) is bonded to one O(12), one O(17), one O(18), and one O(24) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra, and  a cornercorner with one Mg(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 38-49°. The P(5)-O(12) bond length is 1.56 Å. The P(5)-O(17) bond length is 1.53 Å. The P(5)-O(18) bond length is 1.62 Å. The P(5)-O(24) bond length is 1.50 Å. In the sixth P site, P(6) is bonded to one O(19), one O(20), one O(21), and one O(22) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  a cornercorner with one Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-56°. The P(6)-O(19) bond length is 1.53 Å. The P(6)-O(20) bond length is 1.53 Å. The P(6)-O(21) bond length is 1.64 Å. The P(6)-O(22) bond length is 1.50 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(3) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Fe(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(2), one Co(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(1), one Co(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Fe(2), one Co(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Fe(1), one Co(2), and one P(2) atom. In the ninth O site, O(9) is bonded in a linear geometry to one Fe(2) and one P(4) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Fe(1), one Co(2), and one P(3) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Mg(1), one Fe(2), and one P(5) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Fe(2), one Co(1), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(4) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Sb(1) and one P(3) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(5) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(5) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Fe(3), one Co(2), and one P(6) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one Fe(2) and one P(6) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Co(1), one Sb(1), and one P(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(6) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Mg(1), one Fe(1), and one P(4) atom. In the twenty-fourth O site, O(24) is bonded in a linear geometry to one Fe(1) and one P(5) atom.