Li19Mn5N9 crystallizes in the monoclinic C2 space group. There are ten inequivalent Li sites. In the first Li site, Li(1) is bonded in a 3-coordinate geometry to one N(3) and two equivalent N(2) atoms. In the second Li site, Li(2) is bonded in a linear geometry to one N(1) and one N(2) atom. In the third Li site, Li(3) is bonded in a 3-coordinate geometry to one N(1), one N(2), and one N(3) atom. In the fourth Li site, Li(4) is bonded in a 3-coordinate geometry to one N(1), one N(4), and one N(5) atom. In the fifth Li site, Li(5) is bonded in a trigonal planar geometry to one N(3) and two equivalent N(2) atoms. In the sixth Li site, Li(6) is bonded in a trigonal planar geometry to one N(1), one N(3), and one N(4) atom. In the seventh Li site, Li(7) is bonded in a 3-coordinate geometry to one N(5) and two equivalent N(4) atoms. In the eighth Li site, Li(8) is bonded in a 3-coordinate geometry to one N(1), one N(3), and one N(4) atom. In the ninth Li site, Li(9) is bonded in a trigonal planar geometry to one N(1), one N(4), and one N(5) atom. In the tenth Li site, Li(10) is bonded in a linear geometry to one N(3) and one N(5) atom. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a linear geometry to one N(2) and one N(4) atom. In the second Mn site, Mn(2) is bonded in a linear geometry to one N(1) and one N(4) atom. In the third Mn site, Mn(3) is bonded in a linear geometry to two equivalent N(3) atoms. There are five inequivalent N sites. In the first N site, N(1) is bonded to one Li(2), one Li(3), one Li(4), one Li(6), one Li(8), one Li(9), and one Mn(2) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid, corners with two equivalent N(2)Li6Mn pentagonal bipyramids,  an edgeedge with one N(3)Li6Mn pentagonal bipyramid,  an edgeedge with one N(5)Li7 pentagonal bipyramid, and edges with two equivalent N(4)Li5Mn2 pentagonal bipyramids. In the second N site, N(2) is bonded to one Li(2), one Li(3), two equivalent Li(1), two equivalent Li(5), and one Mn(1) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid, corners with two equivalent N(1)Li6Mn pentagonal bipyramids, edges with two equivalent N(2)Li6Mn pentagonal bipyramids, and edges with two equivalent N(3)Li6Mn pentagonal bipyramids. In the third N site, N(3) is bonded to one Li(1), one Li(10), one Li(3), one Li(5), one Li(6), one Li(8), and one Mn(3) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(1)Li6Mn pentagonal bipyramid,  a cornercorner with one N(2)Li6Mn pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid,  a cornercorner with one N(5)Li7 pentagonal bipyramid,  an edgeedge with one N(4)Li5Mn2 pentagonal bipyramid,  an edgeedge with one N(1)Li6Mn pentagonal bipyramid, and edges with two equivalent N(2)Li6Mn pentagonal bipyramids. In the fourth N site, N(4) is bonded to one Li(4), one Li(6), one Li(7), one Li(8), one Li(9), one Mn(1), and one Mn(2) atom to form distorted NLi5Mn2 pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(1)Li6Mn pentagonal bipyramid,  a cornercorner with one N(2)Li6Mn pentagonal bipyramid,  a cornercorner with one N(5)Li7 pentagonal bipyramid,  an edgeedge with one N(3)Li6Mn pentagonal bipyramid,  an edgeedge with one N(5)Li7 pentagonal bipyramid, and edges with two equivalent N(1)Li6Mn pentagonal bipyramids. In the fifth N site, N(5) is bonded to one Li(7), two equivalent Li(10), two equivalent Li(4), and two equivalent Li(9) atoms to form NLi7 pentagonal bipyramids that share corners with two equivalent N(4)Li5Mn2 pentagonal bipyramids, corners with two equivalent N(3)Li6Mn pentagonal bipyramids, edges with two equivalent N(4)Li5Mn2 pentagonal bipyramids, and edges with two equivalent N(1)Li6Mn pentagonal bipyramids.
Li19Mn5N9 crystallizes in the monoclinic C2 space group. There are ten inequivalent Li sites. In the first Li site, Li(1) is bonded in a 3-coordinate geometry to one N(3) and two equivalent N(2) atoms. The Li(1)-N(3) bond length is 2.09 Å. There is one shorter (2.09 Å) and one longer (2.37 Å) Li(1)-N(2) bond length. In the second Li site, Li(2) is bonded in a linear geometry to one N(1) and one N(2) atom. The Li(2)-N(1) bond length is 2.00 Å. The Li(2)-N(2) bond length is 2.01 Å. In the third Li site, Li(3) is bonded in a 3-coordinate geometry to one N(1), one N(2), and one N(3) atom. The Li(3)-N(1) bond length is 2.08 Å. The Li(3)-N(2) bond length is 2.08 Å. The Li(3)-N(3) bond length is 2.40 Å. In the fourth Li site, Li(4) is bonded in a 3-coordinate geometry to one N(1), one N(4), and one N(5) atom. The Li(4)-N(1) bond length is 2.42 Å. The Li(4)-N(4) bond length is 2.15 Å. The Li(4)-N(5) bond length is 2.05 Å. In the fifth Li site, Li(5) is bonded in a trigonal planar geometry to one N(3) and two equivalent N(2) atoms. The Li(5)-N(3) bond length is 2.03 Å. Both Li(5)-N(2) bond lengths are 2.04 Å. In the sixth Li site, Li(6) is bonded in a trigonal planar geometry to one N(1), one N(3), and one N(4) atom. The Li(6)-N(1) bond length is 2.02 Å. The Li(6)-N(3) bond length is 2.03 Å. The Li(6)-N(4) bond length is 2.09 Å. In the seventh Li site, Li(7) is bonded in a 3-coordinate geometry to one N(5) and two equivalent N(4) atoms. The Li(7)-N(5) bond length is 2.27 Å. Both Li(7)-N(4) bond lengths are 2.13 Å. In the eighth Li site, Li(8) is bonded in a 3-coordinate geometry to one N(1), one N(3), and one N(4) atom. The Li(8)-N(1) bond length is 2.07 Å. The Li(8)-N(3) bond length is 2.09 Å. The Li(8)-N(4) bond length is 2.39 Å. In the ninth Li site, Li(9) is bonded in a trigonal planar geometry to one N(1), one N(4), and one N(5) atom. The Li(9)-N(1) bond length is 2.05 Å. The Li(9)-N(4) bond length is 2.08 Å. The Li(9)-N(5) bond length is 2.01 Å. In the tenth Li site, Li(10) is bonded in a linear geometry to one N(3) and one N(5) atom. The Li(10)-N(3) bond length is 1.95 Å. The Li(10)-N(5) bond length is 1.92 Å. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a linear geometry to one N(2) and one N(4) atom. The Mn(1)-N(2) bond length is 1.80 Å. The Mn(1)-N(4) bond length is 1.87 Å. In the second Mn site, Mn(2) is bonded in a linear geometry to one N(1) and one N(4) atom. The Mn(2)-N(1) bond length is 1.81 Å. The Mn(2)-N(4) bond length is 1.89 Å. In the third Mn site, Mn(3) is bonded in a linear geometry to two equivalent N(3) atoms. Both Mn(3)-N(3) bond lengths are 1.83 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded to one Li(2), one Li(3), one Li(4), one Li(6), one Li(8), one Li(9), and one Mn(2) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid, corners with two equivalent N(2)Li6Mn pentagonal bipyramids,  an edgeedge with one N(3)Li6Mn pentagonal bipyramid,  an edgeedge with one N(5)Li7 pentagonal bipyramid, and edges with two equivalent N(4)Li5Mn2 pentagonal bipyramids. In the second N site, N(2) is bonded to one Li(2), one Li(3), two equivalent Li(1), two equivalent Li(5), and one Mn(1) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid, corners with two equivalent N(1)Li6Mn pentagonal bipyramids, edges with two equivalent N(2)Li6Mn pentagonal bipyramids, and edges with two equivalent N(3)Li6Mn pentagonal bipyramids. In the third N site, N(3) is bonded to one Li(1), one Li(10), one Li(3), one Li(5), one Li(6), one Li(8), and one Mn(3) atom to form distorted NLi6Mn pentagonal bipyramids that share  a cornercorner with one N(1)Li6Mn pentagonal bipyramid,  a cornercorner with one N(2)Li6Mn pentagonal bipyramid,  a cornercorner with one N(3)Li6Mn pentagonal bipyramid,  a cornercorner with one N(5)Li7 pentagonal bipyramid,  an edgeedge with one N(4)Li5Mn2 pentagonal bipyramid,  an edgeedge with one N(1)Li6Mn pentagonal bipyramid, and edges with two equivalent N(2)Li6Mn pentagonal bipyramids. In the fourth N site, N(4) is bonded to one Li(4), one Li(6), one Li(7), one Li(8), one Li(9), one Mn(1), and one Mn(2) atom to form distorted NLi5Mn2 pentagonal bipyramids that share  a cornercorner with one N(4)Li5Mn2 pentagonal bipyramid,  a cornercorner with one N(1)Li6Mn pentagonal bipyramid,  a cornercorner with one N(2)Li6Mn pentagonal bipyramid,  a cornercorner with one N(5)Li7 pentagonal bipyramid,  an edgeedge with one N(3)Li6Mn pentagonal bipyramid,  an edgeedge with one N(5)Li7 pentagonal bipyramid, and edges with two equivalent N(1)Li6Mn pentagonal bipyramids. In the fifth N site, N(5) is bonded to one Li(7), two equivalent Li(10), two equivalent Li(4), and two equivalent Li(9) atoms to form NLi7 pentagonal bipyramids that share corners with two equivalent N(4)Li5Mn2 pentagonal bipyramids, corners with two equivalent N(3)Li6Mn pentagonal bipyramids, edges with two equivalent N(4)Li5Mn2 pentagonal bipyramids, and edges with two equivalent N(1)Li6Mn pentagonal bipyramids.