Li4Fe3Co5O16 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, and corners with three equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-65°. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with three equivalent Co(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-65°. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra, corners with three equivalent Co(2)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-66°. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and corners with three equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-67°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-53°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form FeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the third Fe site, Fe(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. In the second Co site, Co(2) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the third Co site, Co(3) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the fourth Co site, Co(4) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 49°. In the fifth Co site, Co(5) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(2), one Co(2), and one Co(4) atom. In the second O site, O(2) is bonded to one Li(4), one Co(1), one Co(2), and one Co(3) atom to form a mixture of distorted corner and edge-sharing OLiCo3 trigonal pyramids. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(1), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded to one Li(3), one Fe(1), one Co(1), and one Co(3) atom to form OLiFeCo2 tetrahedra that share corners with two equivalent O(7)LiFeCo2 tetrahedra and corners with two equivalent O(2)LiCo3 trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Fe(2), one Fe(3), and one Co(4) atom to form corner-sharing OLiFe2Co tetrahedra. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(3), one Co(2), and one Co(4) atom. In the seventh O site, O(7) is bonded to one Li(4), one Fe(1), one Co(1), and one Co(2) atom to form distorted OLiFeCo2 tetrahedra that share corners with two equivalent O(4)LiFeCo2 tetrahedra,  a cornercorner with one O(2)LiCo3 trigonal pyramid, and  an edgeedge with one O(2)LiCo3 trigonal pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Co(2), and one Co(3) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Co(1), one Co(3), and one Co(5) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(2), one Fe(3), and one Co(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Co(4), and one Co(5) atom. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(3), one Co(4), and one Co(5) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(2), one Fe(3), and one Co(4) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Co(1), and one Co(5) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Co(5) atom to form distorted corner-sharing OLiFe2Co tetrahedra. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(1), one Co(3), and one Co(5) atom.
Li4Fe3Co5O16 is Spinel-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(12), one O(15), and one O(3) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, and corners with three equivalent Co(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-65°. The Li(1)-O(11) bond length is 1.93 Å. The Li(1)-O(12) bond length is 1.94 Å. The Li(1)-O(15) bond length is 1.93 Å. The Li(1)-O(3) bond length is 1.93 Å. In the second Li site, Li(2) is bonded to one O(14), one O(16), one O(5), and one O(9) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with three equivalent Co(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-65°. The Li(2)-O(14) bond length is 1.92 Å. The Li(2)-O(16) bond length is 1.94 Å. The Li(2)-O(5) bond length is 1.77 Å. The Li(2)-O(9) bond length is 1.89 Å. In the third Li site, Li(3) is bonded to one O(1), one O(10), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(3)O6 octahedra, corners with three equivalent Co(2)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-66°. The Li(3)-O(1) bond length is 1.91 Å. The Li(3)-O(10) bond length is 1.99 Å. The Li(3)-O(4) bond length is 1.75 Å. The Li(3)-O(6) bond length is 1.91 Å. In the fourth Li site, Li(4) is bonded to one O(13), one O(2), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Co(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and corners with three equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-67°. The Li(4)-O(13) bond length is 1.93 Å. The Li(4)-O(2) bond length is 1.95 Å. The Li(4)-O(7) bond length is 1.93 Å. The Li(4)-O(8) bond length is 1.94 Å. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-53°. The Fe(1)-O(14) bond length is 1.99 Å. The Fe(1)-O(16) bond length is 2.00 Å. The Fe(1)-O(3) bond length is 1.97 Å. The Fe(1)-O(4) bond length is 1.96 Å. The Fe(1)-O(7) bond length is 2.02 Å. The Fe(1)-O(8) bond length is 2.05 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form FeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Fe(2)-O(1) bond length is 2.06 Å. The Fe(2)-O(10) bond length is 2.00 Å. The Fe(2)-O(11) bond length is 2.05 Å. The Fe(2)-O(13) bond length is 1.93 Å. The Fe(2)-O(15) bond length is 2.00 Å. The Fe(2)-O(5) bond length is 1.92 Å. In the third Fe site, Fe(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Fe(3)-O(10) bond length is 1.99 Å. The Fe(3)-O(12) bond length is 2.05 Å. The Fe(3)-O(13) bond length is 1.93 Å. The Fe(3)-O(15) bond length is 2.00 Å. The Fe(3)-O(5) bond length is 1.92 Å. The Fe(3)-O(6) bond length is 2.05 Å. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 50°. The Co(1)-O(14) bond length is 1.98 Å. The Co(1)-O(2) bond length is 1.92 Å. The Co(1)-O(3) bond length is 1.86 Å. The Co(1)-O(4) bond length is 1.89 Å. The Co(1)-O(7) bond length is 1.91 Å. The Co(1)-O(9) bond length is 1.99 Å. In the second Co site, Co(2) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. The Co(2)-O(1) bond length is 1.90 Å. The Co(2)-O(10) bond length is 1.93 Å. The Co(2)-O(2) bond length is 1.96 Å. The Co(2)-O(6) bond length is 1.92 Å. The Co(2)-O(7) bond length is 1.91 Å. The Co(2)-O(8) bond length is 1.93 Å. In the third Co site, Co(3) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Co(5)O6 octahedra,  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Fe(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Co(3)-O(16) bond length is 1.96 Å. The Co(3)-O(2) bond length is 1.93 Å. The Co(3)-O(3) bond length is 1.82 Å. The Co(3)-O(4) bond length is 1.85 Å. The Co(3)-O(8) bond length is 1.88 Å. The Co(3)-O(9) bond length is 1.98 Å. In the fourth Co site, Co(4) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Co(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra,  an edgeedge with one Co(5)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 49°. The Co(4)-O(1) bond length is 2.01 Å. The Co(4)-O(11) bond length is 1.91 Å. The Co(4)-O(12) bond length is 1.92 Å. The Co(4)-O(13) bond length is 1.87 Å. The Co(4)-O(5) bond length is 1.87 Å. The Co(4)-O(6) bond length is 2.01 Å. In the fifth Co site, Co(5) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-53°. The Co(5)-O(11) bond length is 1.92 Å. The Co(5)-O(12) bond length is 1.93 Å. The Co(5)-O(14) bond length is 1.92 Å. The Co(5)-O(15) bond length is 1.91 Å. The Co(5)-O(16) bond length is 1.96 Å. The Co(5)-O(9) bond length is 1.94 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(2), one Co(2), and one Co(4) atom. In the second O site, O(2) is bonded to one Li(4), one Co(1), one Co(2), and one Co(3) atom to form a mixture of distorted corner and edge-sharing OLiCo3 trigonal pyramids. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(1), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded to one Li(3), one Fe(1), one Co(1), and one Co(3) atom to form OLiFeCo2 tetrahedra that share corners with two equivalent O(7)LiFeCo2 tetrahedra and corners with two equivalent O(2)LiCo3 trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(2), one Fe(2), one Fe(3), and one Co(4) atom to form corner-sharing OLiFe2Co tetrahedra. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), one Fe(3), one Co(2), and one Co(4) atom. In the seventh O site, O(7) is bonded to one Li(4), one Fe(1), one Co(1), and one Co(2) atom to form distorted OLiFeCo2 tetrahedra that share corners with two equivalent O(4)LiFeCo2 tetrahedra,  a cornercorner with one O(2)LiCo3 trigonal pyramid, and  an edgeedge with one O(2)LiCo3 trigonal pyramid. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Fe(1), one Co(2), and one Co(3) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Co(1), one Co(3), and one Co(5) atom. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Li(3), one Fe(2), one Fe(3), and one Co(2) atom. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(2), one Co(4), and one Co(5) atom. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Fe(3), one Co(4), and one Co(5) atom. In the thirteenth O site, O(13) is bonded in a rectangular see-saw-like geometry to one Li(4), one Fe(2), one Fe(3), and one Co(4) atom. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Li(2), one Fe(1), one Co(1), and one Co(5) atom. In the fifteenth O site, O(15) is bonded to one Li(1), one Fe(2), one Fe(3), and one Co(5) atom to form distorted corner-sharing OLiFe2Co tetrahedra. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Fe(1), one Co(3), and one Co(5) atom.