The structure described by Li2MnF4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one F(1), two equivalent F(2), and two equivalent F(4) atoms to form distorted LiF5 trigonal bipyramids that share corners with two equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with two equivalent Mn(1)F5 trigonal bipyramids, edges with two equivalent Li(2)F4 tetrahedra,  an edgeedge with one Li(1)F5 trigonal bipyramid, and edges with two equivalent Mn(1)F5 trigonal bipyramids. In the second Li site, Li(2) is bonded to one F(2), one F(3), and two equivalent F(4) atoms to form LiF4 tetrahedra that share corners with two equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with four equivalent Mn(1)F5 trigonal bipyramids, and edges with two equivalent Li(1)F5 trigonal bipyramids. Mn(1) is bonded to one F(2), one F(3), one F(4), and two equivalent F(1) atoms to form distorted MnF5 trigonal bipyramids that share corners with four equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with two equivalent Mn(1)F5 trigonal bipyramids, and edges with two equivalent Li(1)F5 trigonal bipyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Li(1) and two equivalent Mn(1) atoms. In the second F site, F(2) is bonded to one Li(2), two equivalent Li(1), and one Mn(1) atom to form distorted FLi3Mn trigonal pyramids that share corners with three equivalent F(4)Li4Mn trigonal bipyramids, corners with two equivalent F(2)Li3Mn trigonal pyramids, and edges with two equivalent F(4)Li4Mn trigonal bipyramids. In the third F site, F(3) is bonded in a linear geometry to one Li(2) and one Mn(1) atom. In the fourth F site, F(4) is bonded to two equivalent Li(1), two equivalent Li(2), and one Mn(1) atom to form FLi4Mn trigonal bipyramids that share corners with two equivalent F(4)Li4Mn trigonal bipyramids, corners with three equivalent F(2)Li3Mn trigonal pyramids,  an edgeedge with one F(4)Li4Mn trigonal bipyramid, and edges with two equivalent F(2)Li3Mn trigonal pyramids. is represented by the CIF file [CIF]
data_Li2MnF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.687
_cell_length_b   6.687
_cell_length_c   8.287
_cell_angle_alpha   67.719
_cell_angle_beta   67.719
_cell_angle_gamma   33.496
_symmetry_Int_Tables_number   1
_cell_volume   187.765
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Li  Li0  1  0.065  0.065  0.591  1.0
  Li  Li1  1  0.609  0.609  0.226  1.0
  Li  Li2  1  0.391  0.391  0.774  1.0
  Li  Li3  1  0.935  0.935  0.409  1.0
  Mn  Mn4  1  0.306  0.306  0.262  1.0
  Mn  Mn5  1  0.694  0.694  0.738  1.0
  F  F6  1  0.793  0.793  0.362  1.0
  F  F7  1  0.551  0.551  0.660  1.0
  F  F8  1  0.352  0.352  0.007  1.0
  F  F9  1  0.118  0.118  0.335  1.0
  F  F10  1  0.882  0.882  0.665  1.0
  F  F11  1  0.648  0.648  0.993  1.0
  F  F12  1  0.449  0.449  0.340  1.0
  F  F13  1  0.207  0.207  0.638  1.0
[/CIF]
.
The structure described by Li2MnF4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one F(1), two equivalent F(2), and two equivalent F(4) atoms to form distorted LiF5 trigonal bipyramids that share corners with two equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with two equivalent Mn(1)F5 trigonal bipyramids, edges with two equivalent Li(2)F4 tetrahedra,  an edgeedge with one Li(1)F5 trigonal bipyramid, and edges with two equivalent Mn(1)F5 trigonal bipyramids. In the second Li site, Li(2) is bonded to one F(2), one F(3), and two equivalent F(4) atoms to form LiF4 tetrahedra that share corners with two equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with four equivalent Mn(1)F5 trigonal bipyramids, and edges with two equivalent Li(1)F5 trigonal bipyramids. Mn(1) is bonded to one F(2), one F(3), one F(4), and two equivalent F(1) atoms to form distorted MnF5 trigonal bipyramids that share corners with four equivalent Li(2)F4 tetrahedra, corners with two equivalent Li(1)F5 trigonal bipyramids, corners with two equivalent Mn(1)F5 trigonal bipyramids, and edges with two equivalent Li(1)F5 trigonal bipyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted T-shaped geometry to one Li(1) and two equivalent Mn(1) atoms. In the second F site, F(2) is bonded to one Li(2), two equivalent Li(1), and one Mn(1) atom to form distorted FLi3Mn trigonal pyramids that share corners with three equivalent F(4)Li4Mn trigonal bipyramids, corners with two equivalent F(2)Li3Mn trigonal pyramids, and edges with two equivalent F(4)Li4Mn trigonal bipyramids. In the third F site, F(3) is bonded in a linear geometry to one Li(2) and one Mn(1) atom. In the fourth F site, F(4) is bonded to two equivalent Li(1), two equivalent Li(2), and one Mn(1) atom to form FLi4Mn trigonal bipyramids that share corners with two equivalent F(4)Li4Mn trigonal bipyramids, corners with three equivalent F(2)Li3Mn trigonal pyramids,  an edgeedge with one F(4)Li4Mn trigonal bipyramid, and edges with two equivalent F(2)Li3Mn trigonal pyramids. is represented by the CIF file [CIF]
data_Li2MnF4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.687
_cell_length_b   6.687
_cell_length_c   8.287
_cell_angle_alpha   67.719
_cell_angle_beta   67.719
_cell_angle_gamma   33.496
_symmetry_Int_Tables_number   1
_cell_volume   187.765
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Li  Li0  1  0.065  0.065  0.591  1.0
  Li  Li1  1  0.609  0.609  0.226  1.0
  Li  Li2  1  0.391  0.391  0.774  1.0
  Li  Li3  1  0.935  0.935  0.409  1.0
  Mn  Mn4  1  0.306  0.306  0.262  1.0
  Mn  Mn5  1  0.694  0.694  0.738  1.0
  F  F6  1  0.793  0.793  0.362  1.0
  F  F7  1  0.551  0.551  0.660  1.0
  F  F8  1  0.352  0.352  0.007  1.0
  F  F9  1  0.118  0.118  0.335  1.0
  F  F10  1  0.882  0.882  0.665  1.0
  F  F11  1  0.648  0.648  0.993  1.0
  F  F12  1  0.449  0.449  0.340  1.0
  F  F13  1  0.207  0.207  0.638  1.0
[/CIF]
.