Li4Mn3F10 crystallizes in the monoclinic C2/c space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one F(3), two equivalent F(1), and two equivalent F(5) atoms. In the second Li site, Li(2) is bonded in a distorted see-saw-like geometry to two equivalent F(3) and two equivalent F(5) atoms. In the third Li site, Li(3) is bonded to two equivalent F(3) and two equivalent F(4) atoms to form LiF4 tetrahedra that share corners with six equivalent Mn(1)F5 trigonal bipyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(1), one F(2), one F(3), and two equivalent F(4) atoms to form MnF5 trigonal bipyramids that share  a cornercorner with one Mn(2)F4 tetrahedra, corners with three equivalent Li(3)F4 tetrahedra, and corners with two equivalent Mn(1)F5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to two equivalent F(2) and two equivalent F(5) atoms to form corner-sharing MnF4 tetrahedra. There are five inequivalent F sites. In the first F site, F(3) is bonded to one Li(1), one Li(2), one Li(3), and one Mn(1) atom to form distorted corner-sharing FLi3Mn tetrahedra. In the second F site, F(4) is bonded in a trigonal planar geometry to one Li(3) and two equivalent Mn(1) atoms. In the third F site, F(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), two equivalent Li(1), and one Mn(2) atom. In the fourth F site, F(1) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one Mn(1) atom. In the fifth F site, F(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one Mn(2) atom.
Li4Mn3F10 crystallizes in the monoclinic C2/c space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one F(3), two equivalent F(1), and two equivalent F(5) atoms. The Li(1)-F(3) bond length is 2.12 Å. There is one shorter (1.93 Å) and one longer (2.05 Å) Li(1)-F(1) bond length. There is one shorter (1.95 Å) and one longer (2.42 Å) Li(1)-F(5) bond length. In the second Li site, Li(2) is bonded in a distorted see-saw-like geometry to two equivalent F(3) and two equivalent F(5) atoms. Both Li(2)-F(3) bond lengths are 1.97 Å. Both Li(2)-F(5) bond lengths are 1.93 Å. In the third Li site, Li(3) is bonded to two equivalent F(3) and two equivalent F(4) atoms to form LiF4 tetrahedra that share corners with six equivalent Mn(1)F5 trigonal bipyramids. Both Li(3)-F(3) bond lengths are 1.95 Å. Both Li(3)-F(4) bond lengths are 1.88 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(1), one F(2), one F(3), and two equivalent F(4) atoms to form MnF5 trigonal bipyramids that share  a cornercorner with one Mn(2)F4 tetrahedra, corners with three equivalent Li(3)F4 tetrahedra, and corners with two equivalent Mn(1)F5 trigonal bipyramids. The Mn(1)-F(1) bond length is 2.07 Å. The Mn(1)-F(2) bond length is 2.06 Å. The Mn(1)-F(3) bond length is 2.15 Å. There is one shorter (2.08 Å) and one longer (2.14 Å) Mn(1)-F(4) bond length. In the second Mn site, Mn(2) is bonded to two equivalent F(2) and two equivalent F(5) atoms to form corner-sharing MnF4 tetrahedra. Both Mn(2)-F(2) bond lengths are 2.00 Å. Both Mn(2)-F(5) bond lengths are 2.03 Å. There are five inequivalent F sites. In the first F site, F(3) is bonded to one Li(1), one Li(2), one Li(3), and one Mn(1) atom to form distorted corner-sharing FLi3Mn tetrahedra. In the second F site, F(4) is bonded in a trigonal planar geometry to one Li(3) and two equivalent Mn(1) atoms. In the third F site, F(5) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), two equivalent Li(1), and one Mn(2) atom. In the fourth F site, F(1) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one Mn(1) atom. In the fifth F site, F(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one Mn(2) atom.