Li4Co7(OF7)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one F(4), one F(5), one F(6), and one F(7) atom. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one F(1), one F(2), and one F(3) atom. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a 2-coordinate geometry to two equivalent F(1) and two equivalent F(2) atoms. In the second Co site, Co(2) is bonded in a 2-coordinate geometry to one O(1), one F(1), one F(2), one F(6), and one F(7) atom. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent F(5) atoms. In the fourth Co site, Co(4) is bonded in a distorted square co-planar geometry to two equivalent F(3) and two equivalent F(4) atoms. In the fifth Co site, Co(5) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent F(5) atoms. In the sixth Co site, Co(6) is bonded in a 2-coordinate geometry to two equivalent F(6) and two equivalent F(7) atoms. O(1) is bonded in a 4-coordinate geometry to one Li(2), one Co(2), one Co(3), and one Co(5) atom. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Li(2), one Co(1), and one Co(2) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Li(2), one Co(1), and one Co(2) atom. In the third F site, F(3) is bonded in a 2-coordinate geometry to one Li(2) and one Co(4) atom. In the fourth F site, F(4) is bonded in a 2-coordinate geometry to one Li(1) and one Co(4) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Li(1), one Co(3), and one Co(5) atom. In the sixth F site, F(6) is bonded in a 3-coordinate geometry to one Li(1), one Co(2), and one Co(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Li(1), one Co(2), and one Co(6) atom.
Li4Co7(OF7)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one F(4), one F(5), one F(6), and one F(7) atom. The Li(1)-F(4) bond length is 1.72 Å. The Li(1)-F(5) bond length is 2.32 Å. The Li(1)-F(6) bond length is 2.19 Å. The Li(1)-F(7) bond length is 2.03 Å. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one F(1), one F(2), and one F(3) atom. The Li(2)-O(1) bond length is 1.65 Å. The Li(2)-F(1) bond length is 2.38 Å. The Li(2)-F(2) bond length is 2.09 Å. The Li(2)-F(3) bond length is 2.20 Å. There are six inequivalent Co sites. In the first Co site, Co(1) is bonded in a 2-coordinate geometry to two equivalent F(1) and two equivalent F(2) atoms. Both Co(1)-F(1) bond lengths are 2.18 Å. Both Co(1)-F(2) bond lengths are 1.63 Å. In the second Co site, Co(2) is bonded in a 2-coordinate geometry to one O(1), one F(1), one F(2), one F(6), and one F(7) atom. The Co(2)-O(1) bond length is 2.57 Å. The Co(2)-F(1) bond length is 1.70 Å. The Co(2)-F(2) bond length is 2.21 Å. The Co(2)-F(6) bond length is 1.56 Å. The Co(2)-F(7) bond length is 2.36 Å. In the third Co site, Co(3) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent F(5) atoms. Both Co(3)-O(1) bond lengths are 1.61 Å. Both Co(3)-F(5) bond lengths are 2.28 Å. In the fourth Co site, Co(4) is bonded in a distorted square co-planar geometry to two equivalent F(3) and two equivalent F(4) atoms. Both Co(4)-F(3) bond lengths are 1.57 Å. Both Co(4)-F(4) bond lengths are 2.22 Å. In the fifth Co site, Co(5) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent F(5) atoms. Both Co(5)-O(1) bond lengths are 2.14 Å. Both Co(5)-F(5) bond lengths are 1.70 Å. In the sixth Co site, Co(6) is bonded in a 2-coordinate geometry to two equivalent F(6) and two equivalent F(7) atoms. Both Co(6)-F(6) bond lengths are 2.19 Å. Both Co(6)-F(7) bond lengths are 1.66 Å. O(1) is bonded in a 4-coordinate geometry to one Li(2), one Co(2), one Co(3), and one Co(5) atom. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Li(2), one Co(1), and one Co(2) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Li(2), one Co(1), and one Co(2) atom. In the third F site, F(3) is bonded in a 2-coordinate geometry to one Li(2) and one Co(4) atom. In the fourth F site, F(4) is bonded in a 2-coordinate geometry to one Li(1) and one Co(4) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Li(1), one Co(3), and one Co(5) atom. In the sixth F site, F(6) is bonded in a 3-coordinate geometry to one Li(1), one Co(2), and one Co(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Li(1), one Co(2), and one Co(6) atom.