Li9Fe4(BO3)8 crystallizes in the triclinic P1 space group. There are nine inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(17), one O(20), one O(22), and one O(4) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra,  a cornercorner with one Fe(4)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid, and  a cornercorner with one Li(6)O4 trigonal pyramid. In the second Li site, Li(2) is bonded to one O(16), one O(4), one O(6), and one O(9) atom to form LiO4 trigonal pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(20), one O(23), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  an edgeedge with one Li(6)O4 trigonal pyramid. In the fourth Li site, Li(4) is bonded to one O(10), one O(12), one O(14), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, and  a cornercorner with one Fe(4)O4 tetrahedra. In the fifth Li site, Li(5) is bonded to one O(13), one O(18), one O(3), and one O(8) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  a cornercorner with one Li(6)O4 trigonal pyramid. In the sixth Li site, Li(6) is bonded to one O(18), one O(19), one O(20), and one O(23) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the seventh Li site, Li(7) is bonded to one O(15), one O(16), one O(21), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra,  a cornercorner with one Fe(4)O4 tetrahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the eighth Li site, Li(8) is bonded to one O(2), one O(21), one O(23), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Li(6)O4 trigonal pyramid, and  an edgeedge with one Li(9)O4 tetrahedra. In the ninth Li site, Li(9) is bonded to one O(21), one O(22), one O(24), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  an edgeedge with one Li(8)O4 tetrahedra. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(13), one O(5), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. In the second Fe site, Fe(2) is bonded to one O(14), one O(19), one O(2), and one O(24) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra, and  a cornercorner with one Li(6)O4 trigonal pyramid. In the third Fe site, Fe(3) is bonded to one O(1), one O(22), one O(3), and one O(7) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra, and  a cornercorner with one Li(9)O4 tetrahedra. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(11), one O(15), and one O(17) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, and  a cornercorner with one Li(7)O4 tetrahedra. There are eight inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(8) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(5) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(20), one O(24), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(11), one O(16), and one O(7) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(12), one O(19), and one O(6) atom. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(13), one O(17), and one O(21) atom. In the seventh B site, B(7) is bonded in a trigonal planar geometry to one O(1), one O(15), and one O(23) atom. In the eighth B site, B(8) is bonded in a trigonal planar geometry to one O(14), one O(18), and one O(22) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Fe(3) and one B(7) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Li(8), one Fe(2), and one B(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Li(5), one Fe(3), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Li(1), one Li(2), and one B(2) atom. In the fifth O site, O(5) is bonded to one Li(8), one Li(9), one Fe(1), and one B(2) atom to form distorted OLi2FeB tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra,  a cornercorner with one O(23)Li3B tetrahedra, and  an edgeedge with one O(21)Li3B tetrahedra. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(2), one Li(7), and one B(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(3), one Fe(3), and one B(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Li(5), and one B(1) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Li(2), one Fe(1), and one B(3) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Li(4), one Fe(4), and one B(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Fe(4) and one B(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Li(4), one Fe(1), and one B(5) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(5), one Fe(1), and one B(6) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Li(4), one Fe(2), and one B(8) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Li(7), one Fe(4), and one B(7) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Li(2), one Li(7), and one B(4) atom. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Li(1), one Fe(4), and one B(6) atom. In the eighteenth O site, O(18) is bonded in a trigonal planar geometry to one Li(5), one Li(6), and one B(8) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Li(6), one Fe(2), and one B(5) atom. In the twentieth O site, O(20) is bonded to one Li(1), one Li(3), one Li(6), and one B(3) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra and  an edgeedge with one O(23)Li3B tetrahedra. In the twenty-first O site, O(21) is bonded to one Li(7), one Li(8), one Li(9), and one B(6) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra,  a cornercorner with one O(23)Li3B tetrahedra, and  an edgeedge with one O(5)Li2FeB tetrahedra. In the twenty-second O site, O(22) is bonded to one Li(1), one Li(9), one Fe(3), and one B(8) atom to form distorted OLi2FeB tetrahedra that share  a cornercorner with one O(5)Li2FeB tetrahedra,  a cornercorner with one O(20)Li3B tetrahedra, and  a cornercorner with one O(21)Li3B tetrahedra. In the twenty-third O site, O(23) is bonded to one Li(3), one Li(6), one Li(8), and one B(7) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(5)Li2FeB tetrahedra,  a cornercorner with one O(21)Li3B tetrahedra, and  an edgeedge with one O(20)Li3B tetrahedra. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Li(9), one Fe(2), and one B(3) atom.
Li9Fe4(BO3)8 crystallizes in the triclinic P1 space group. There are nine inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(17), one O(20), one O(22), and one O(4) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra,  a cornercorner with one Fe(4)O4 tetrahedra,  a cornercorner with one Li(2)O4 trigonal pyramid, and  a cornercorner with one Li(6)O4 trigonal pyramid. The Li(1)-O(17) bond length is 2.07 Å. The Li(1)-O(20) bond length is 2.00 Å. The Li(1)-O(22) bond length is 2.26 Å. The Li(1)-O(4) bond length is 1.96 Å. In the second Li site, Li(2) is bonded to one O(16), one O(4), one O(6), and one O(9) atom to form LiO4 trigonal pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. The Li(2)-O(16) bond length is 2.14 Å. The Li(2)-O(4) bond length is 1.95 Å. The Li(2)-O(6) bond length is 1.93 Å. The Li(2)-O(9) bond length is 2.07 Å. In the third Li site, Li(3) is bonded to one O(20), one O(23), one O(7), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  an edgeedge with one Li(6)O4 trigonal pyramid. The Li(3)-O(20) bond length is 2.12 Å. The Li(3)-O(23) bond length is 2.08 Å. The Li(3)-O(7) bond length is 2.04 Å. The Li(3)-O(8) bond length is 2.01 Å. In the fourth Li site, Li(4) is bonded to one O(10), one O(12), one O(14), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, and  a cornercorner with one Fe(4)O4 tetrahedra. The Li(4)-O(10) bond length is 2.04 Å. The Li(4)-O(12) bond length is 1.96 Å. The Li(4)-O(14) bond length is 1.97 Å. The Li(4)-O(8) bond length is 1.91 Å. In the fifth Li site, Li(5) is bonded to one O(13), one O(18), one O(3), and one O(8) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  a cornercorner with one Li(6)O4 trigonal pyramid. The Li(5)-O(13) bond length is 1.99 Å. The Li(5)-O(18) bond length is 1.96 Å. The Li(5)-O(3) bond length is 1.96 Å. The Li(5)-O(8) bond length is 2.21 Å. In the sixth Li site, Li(6) is bonded to one O(18), one O(19), one O(20), and one O(23) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The Li(6)-O(18) bond length is 1.96 Å. The Li(6)-O(19) bond length is 2.01 Å. The Li(6)-O(20) bond length is 2.05 Å. The Li(6)-O(23) bond length is 2.21 Å. In the seventh Li site, Li(7) is bonded to one O(15), one O(16), one O(21), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra,  a cornercorner with one Fe(4)O4 tetrahedra, and  an edgeedge with one Li(2)O4 trigonal pyramid. The Li(7)-O(15) bond length is 2.09 Å. The Li(7)-O(16) bond length is 1.96 Å. The Li(7)-O(21) bond length is 1.99 Å. The Li(7)-O(6) bond length is 2.00 Å. In the eighth Li site, Li(8) is bonded to one O(2), one O(21), one O(23), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Li(6)O4 trigonal pyramid, and  an edgeedge with one Li(9)O4 tetrahedra. The Li(8)-O(2) bond length is 1.98 Å. The Li(8)-O(21) bond length is 1.99 Å. The Li(8)-O(23) bond length is 1.98 Å. The Li(8)-O(5) bond length is 2.19 Å. In the ninth Li site, Li(9) is bonded to one O(21), one O(22), one O(24), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(7)O4 tetrahedra,  a cornercorner with one Fe(1)O4 tetrahedra,  a cornercorner with one Fe(2)O4 tetrahedra,  a cornercorner with one Fe(3)O4 tetrahedra, and  an edgeedge with one Li(8)O4 tetrahedra. The Li(9)-O(21) bond length is 1.98 Å. The Li(9)-O(22) bond length is 2.02 Å. The Li(9)-O(24) bond length is 1.96 Å. The Li(9)-O(5) bond length is 1.97 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(13), one O(5), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. The Fe(1)-O(12) bond length is 1.90 Å. The Fe(1)-O(13) bond length is 1.90 Å. The Fe(1)-O(5) bond length is 1.93 Å. The Fe(1)-O(9) bond length is 1.88 Å. In the second Fe site, Fe(2) is bonded to one O(14), one O(19), one O(2), and one O(24) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Li(8)O4 tetrahedra,  a cornercorner with one Li(9)O4 tetrahedra, and  a cornercorner with one Li(6)O4 trigonal pyramid. The Fe(2)-O(14) bond length is 1.89 Å. The Fe(2)-O(19) bond length is 1.88 Å. The Fe(2)-O(2) bond length is 1.89 Å. The Fe(2)-O(24) bond length is 1.90 Å. In the third Fe site, Fe(3) is bonded to one O(1), one O(22), one O(3), and one O(7) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra, and  a cornercorner with one Li(9)O4 tetrahedra. The Fe(3)-O(1) bond length is 1.87 Å. The Fe(3)-O(22) bond length is 1.94 Å. The Fe(3)-O(3) bond length is 1.87 Å. The Fe(3)-O(7) bond length is 1.89 Å. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(11), one O(15), and one O(17) atom to form FeO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, and  a cornercorner with one Li(7)O4 tetrahedra. The Fe(4)-O(10) bond length is 1.90 Å. The Fe(4)-O(11) bond length is 1.89 Å. The Fe(4)-O(15) bond length is 1.89 Å. The Fe(4)-O(17) bond length is 1.89 Å. There are eight inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(8) atom. The B(1)-O(2) bond length is 1.40 Å. The B(1)-O(3) bond length is 1.39 Å. The B(1)-O(8) bond length is 1.35 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(10), one O(4), and one O(5) atom. The B(2)-O(10) bond length is 1.41 Å. The B(2)-O(4) bond length is 1.33 Å. The B(2)-O(5) bond length is 1.42 Å. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(20), one O(24), and one O(9) atom. The B(3)-O(20) bond length is 1.36 Å. The B(3)-O(24) bond length is 1.40 Å. The B(3)-O(9) bond length is 1.40 Å. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(11), one O(16), and one O(7) atom. The B(4)-O(11) bond length is 1.38 Å. The B(4)-O(16) bond length is 1.36 Å. The B(4)-O(7) bond length is 1.38 Å. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(12), one O(19), and one O(6) atom. The B(5)-O(12) bond length is 1.39 Å. The B(5)-O(19) bond length is 1.39 Å. The B(5)-O(6) bond length is 1.35 Å. In the sixth B site, B(6) is bonded in a trigonal planar geometry to one O(13), one O(17), and one O(21) atom. The B(6)-O(13) bond length is 1.41 Å. The B(6)-O(17) bond length is 1.40 Å. The B(6)-O(21) bond length is 1.35 Å. In the seventh B site, B(7) is bonded in a trigonal planar geometry to one O(1), one O(15), and one O(23) atom. The B(7)-O(1) bond length is 1.38 Å. The B(7)-O(15) bond length is 1.40 Å. The B(7)-O(23) bond length is 1.36 Å. In the eighth B site, B(8) is bonded in a trigonal planar geometry to one O(14), one O(18), and one O(22) atom. The B(8)-O(14) bond length is 1.39 Å. The B(8)-O(18) bond length is 1.34 Å. The B(8)-O(22) bond length is 1.41 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Fe(3) and one B(7) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Li(8), one Fe(2), and one B(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Li(5), one Fe(3), and one B(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Li(1), one Li(2), and one B(2) atom. In the fifth O site, O(5) is bonded to one Li(8), one Li(9), one Fe(1), and one B(2) atom to form distorted OLi2FeB tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra,  a cornercorner with one O(23)Li3B tetrahedra, and  an edgeedge with one O(21)Li3B tetrahedra. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Li(2), one Li(7), and one B(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(3), one Fe(3), and one B(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Li(3), one Li(4), one Li(5), and one B(1) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Li(2), one Fe(1), and one B(3) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Li(4), one Fe(4), and one B(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Fe(4) and one B(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Li(4), one Fe(1), and one B(5) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(5), one Fe(1), and one B(6) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Li(4), one Fe(2), and one B(8) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Li(7), one Fe(4), and one B(7) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Li(2), one Li(7), and one B(4) atom. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Li(1), one Fe(4), and one B(6) atom. In the eighteenth O site, O(18) is bonded in a trigonal planar geometry to one Li(5), one Li(6), and one B(8) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Li(6), one Fe(2), and one B(5) atom. In the twentieth O site, O(20) is bonded to one Li(1), one Li(3), one Li(6), and one B(3) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra and  an edgeedge with one O(23)Li3B tetrahedra. In the twenty-first O site, O(21) is bonded to one Li(7), one Li(8), one Li(9), and one B(6) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(22)Li2FeB tetrahedra,  a cornercorner with one O(23)Li3B tetrahedra, and  an edgeedge with one O(5)Li2FeB tetrahedra. In the twenty-second O site, O(22) is bonded to one Li(1), one Li(9), one Fe(3), and one B(8) atom to form distorted OLi2FeB tetrahedra that share  a cornercorner with one O(5)Li2FeB tetrahedra,  a cornercorner with one O(20)Li3B tetrahedra, and  a cornercorner with one O(21)Li3B tetrahedra. In the twenty-third O site, O(23) is bonded to one Li(3), one Li(6), one Li(8), and one B(7) atom to form distorted OLi3B tetrahedra that share  a cornercorner with one O(5)Li2FeB tetrahedra,  a cornercorner with one O(21)Li3B tetrahedra, and  an edgeedge with one O(20)Li3B tetrahedra. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Li(9), one Fe(2), and one B(3) atom.