Li9Mn7O16 is Caswellsilverite-like structured and crystallizes in the triclinic P-1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form LiO6 octahedra that share corners with six equivalent Mn(4)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the second Li site, Li(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. In the third Li site, Li(3) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the fourth Li site, Li(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form LiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-13°. In the fifth Li site, Li(5) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-7°. In the sixth Li site, Li(6) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. In the seventh Li site, Li(7) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with four equivalent Li(6)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Li(4)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-13°. In the second Mn site, Mn(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with four equivalent Li(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. In the third Mn site, Mn(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(6)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the fifth Mn site, Mn(5) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-7°. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(4), one Li(6), one Mn(1), one Mn(3), and one Mn(4) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(1)Li3Mn3 octahedra, corners with four equivalent O(5)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second O site, O(2) is bonded to one Li(2), one Li(4), one Li(6), one Li(7), one Mn(1), and one Mn(2) atom to form distorted OLi4Mn2 octahedra that share corners with two equivalent O(6)Li3Mn3 octahedra, corners with four equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. In the third O site, O(3) is bonded to one Li(1), one Li(3), one Li(5), one Mn(3), one Mn(4), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(7)Li4Mn2 octahedra, corners with four equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(6)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Li(4), one Mn(1), one Mn(4), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(4)Li3Mn3 octahedra, corners with four equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fifth O site, O(5) is bonded to one Li(1), one Li(3), one Li(4), one Li(7), one Mn(1), and one Mn(4) atom to form OLi4Mn2 octahedra that share corners with two equivalent O(5)Li4Mn2 octahedra, corners with four equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the sixth O site, O(6) is bonded to one Li(3), one Li(4), one Li(5), one Mn(1), one Mn(3), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(2)Li4Mn2 octahedra, corners with four equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(3)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. In the seventh O site, O(7) is bonded to one Li(1), one Li(2), one Li(6), one Li(7), one Mn(2), and one Mn(4) atom to form OLi4Mn2 octahedra that share corners with two equivalent O(3)Li3Mn3 octahedra, corners with four equivalent O(7)Li4Mn2 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(2)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the eighth O site, O(8) is bonded to one Li(1), one Li(4), one Li(5), one Mn(1), one Mn(2), and one Mn(4) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(8)Li3Mn3 octahedra, corners with four equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-3°.
Li9Mn7O16 is Caswellsilverite-like structured and crystallizes in the triclinic P-1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form LiO6 octahedra that share corners with six equivalent Mn(4)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. The Li(1)-O(1) bond length is 2.33 Å. The Li(1)-O(3) bond length is 2.19 Å. The Li(1)-O(4) bond length is 2.12 Å. The Li(1)-O(5) bond length is 2.26 Å. The Li(1)-O(7) bond length is 2.12 Å. The Li(1)-O(8) bond length is 2.14 Å. In the second Li site, Li(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. Both Li(2)-O(2) bond lengths are 2.45 Å. Both Li(2)-O(4) bond lengths are 2.10 Å. Both Li(2)-O(7) bond lengths are 2.15 Å. In the third Li site, Li(3) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with four equivalent Mn(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. Both Li(3)-O(3) bond lengths are 2.19 Å. Both Li(3)-O(5) bond lengths are 2.05 Å. Both Li(3)-O(6) bond lengths are 2.16 Å. In the fourth Li site, Li(4) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form LiO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-13°. The Li(4)-O(1) bond length is 2.20 Å. The Li(4)-O(2) bond length is 2.11 Å. The Li(4)-O(4) bond length is 2.17 Å. The Li(4)-O(5) bond length is 2.12 Å. The Li(4)-O(6) bond length is 2.20 Å. The Li(4)-O(8) bond length is 2.14 Å. In the fifth Li site, Li(5) is bonded to two equivalent O(3), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-7°. Both Li(5)-O(3) bond lengths are 2.16 Å. Both Li(5)-O(6) bond lengths are 2.18 Å. Both Li(5)-O(8) bond lengths are 2.16 Å. In the sixth Li site, Li(6) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with four equivalent Li(7)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. Both Li(6)-O(1) bond lengths are 2.14 Å. Both Li(6)-O(2) bond lengths are 2.06 Å. Both Li(6)-O(7) bond lengths are 2.19 Å. In the seventh Li site, Li(7) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with two equivalent Li(3)O6 octahedra, corners with four equivalent Li(6)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. Both Li(7)-O(2) bond lengths are 2.07 Å. Both Li(7)-O(5) bond lengths are 2.06 Å. Both Li(7)-O(7) bond lengths are 2.24 Å. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Li(4)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-13°. The Mn(1)-O(1) bond length is 1.98 Å. The Mn(1)-O(2) bond length is 1.94 Å. The Mn(1)-O(4) bond length is 2.28 Å. The Mn(1)-O(5) bond length is 1.92 Å. The Mn(1)-O(6) bond length is 1.98 Å. The Mn(1)-O(8) bond length is 2.26 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(2), two equivalent O(7), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with four equivalent Li(2)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. Both Mn(2)-O(2) bond lengths are 1.97 Å. Both Mn(2)-O(7) bond lengths are 1.95 Å. Both Mn(2)-O(8) bond lengths are 1.94 Å. In the third Mn site, Mn(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(6)O6 octahedra, corners with four equivalent Li(3)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(4)O6 octahedra, and edges with two equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. Both Mn(3)-O(1) bond lengths are 1.96 Å. Both Mn(3)-O(3) bond lengths are 2.24 Å. Both Mn(3)-O(6) bond lengths are 1.95 Å. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with six equivalent Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra,  an edgeedge with one Li(5)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Mn(2)O6 octahedra,  an edgeedge with one Mn(3)O6 octahedra,  an edgeedge with one Mn(5)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. The Mn(4)-O(1) bond length is 2.20 Å. The Mn(4)-O(3) bond length is 1.97 Å. The Mn(4)-O(4) bond length is 1.97 Å. The Mn(4)-O(5) bond length is 2.05 Å. The Mn(4)-O(7) bond length is 1.93 Å. The Mn(4)-O(8) bond length is 1.98 Å. In the fifth Mn site, Mn(5) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with four equivalent Li(5)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(3)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-7°. Both Mn(5)-O(3) bond lengths are 1.95 Å. Both Mn(5)-O(4) bond lengths are 2.00 Å. Both Mn(5)-O(6) bond lengths are 2.24 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(4), one Li(6), one Mn(1), one Mn(3), and one Mn(4) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(1)Li3Mn3 octahedra, corners with four equivalent O(5)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second O site, O(2) is bonded to one Li(2), one Li(4), one Li(6), one Li(7), one Mn(1), and one Mn(2) atom to form distorted OLi4Mn2 octahedra that share corners with two equivalent O(6)Li3Mn3 octahedra, corners with four equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. In the third O site, O(3) is bonded to one Li(1), one Li(3), one Li(5), one Mn(3), one Mn(4), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(7)Li4Mn2 octahedra, corners with four equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(6)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Li(4), one Mn(1), one Mn(4), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(4)Li3Mn3 octahedra, corners with four equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the fifth O site, O(5) is bonded to one Li(1), one Li(3), one Li(4), one Li(7), one Mn(1), and one Mn(4) atom to form OLi4Mn2 octahedra that share corners with two equivalent O(5)Li4Mn2 octahedra, corners with four equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the sixth O site, O(6) is bonded to one Li(3), one Li(4), one Li(5), one Mn(1), one Mn(3), and one Mn(5) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(2)Li4Mn2 octahedra, corners with four equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(3)Li3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. In the seventh O site, O(7) is bonded to one Li(1), one Li(2), one Li(6), one Li(7), one Mn(2), and one Mn(4) atom to form OLi4Mn2 octahedra that share corners with two equivalent O(3)Li3Mn3 octahedra, corners with four equivalent O(7)Li4Mn2 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(8)Li3Mn3 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with four equivalent O(2)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-4°. In the eighth O site, O(8) is bonded to one Li(1), one Li(4), one Li(5), one Mn(1), one Mn(2), and one Mn(4) atom to form OLi3Mn3 octahedra that share corners with two equivalent O(8)Li3Mn3 octahedra, corners with four equivalent O(4)Li3Mn3 octahedra, edges with two equivalent O(1)Li3Mn3 octahedra, edges with two equivalent O(3)Li3Mn3 octahedra, edges with two equivalent O(6)Li3Mn3 octahedra, edges with two equivalent O(2)Li4Mn2 octahedra, edges with two equivalent O(5)Li4Mn2 octahedra, and edges with two equivalent O(7)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-3°.