The crystal structure described by Li7Mn3(WO8)2 is Hausmannite-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form LiO6 octahedra that share corners with two equivalent W(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one W(1)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the second Li site, Li(2) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(5)O6 octahedra, corners with three equivalent W(2)O6 octahedra, and corners with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-67°. In the third Li site, Li(3) is bonded to one O(5), one O(7), and two equivalent O(11) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent W(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-65°. In the fourth Li site, Li(4) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fifth Li site, Li(5) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form LiO6 octahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one W(2)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles are 46°. In the sixth Li site, Li(6) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent W(1)O6 octahedra, and corners with four equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-65°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted WO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra, corners with three equivalent Li(6)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. In the second W site, W(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form distorted WO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with three equivalent Li(2)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form distorted MnO6 octahedra that share corners with two equivalent W(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one W(1)O6 octahedra, edges with four equivalent Li(1)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one W(2)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(4), one Li(5), one W(1), and one Mn(2) atom. In the second O site, O(2) is bonded to one Li(6), two equivalent Li(1), and one W(1) atom to form distorted OLi3W tetrahedra that share corners with two equivalent O(4)Li3Mn tetrahedra,  a cornercorner with one O(10)Li2Mn2 trigonal pyramid, corners with two equivalent O(6)Li2MnW trigonal pyramids, and edges with two equivalent O(6)Li2MnW trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Li(1), and one Mn(1) atom. In the fourth O site, O(4) is bonded to one Li(4), two equivalent Li(1), and one Mn(1) atom to form OLi3Mn tetrahedra that share corners with two equivalent O(2)Li3W tetrahedra and corners with four equivalent O(6)Li2MnW trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(3), one Li(5), and two equivalent Mn(2) atoms to form OLi2Mn2 tetrahedra that share corners with four equivalent O(9)Li2MnW tetrahedra and corners with three equivalent O(10)Li2Mn2 trigonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(6), one W(1), and one Mn(1) atom to form distorted OLi2MnW trigonal pyramids that share  a cornercorner with one O(2)Li3W tetrahedra, corners with two equivalent O(4)Li3Mn tetrahedra,  a cornercorner with one O(10)Li2Mn2 trigonal pyramid,  a cornercorner with one O(6)Li2MnW trigonal pyramid,  an edgeedge with one O(2)Li3W tetrahedra, and  an edgeedge with one O(6)Li2MnW trigonal pyramid. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), two equivalent Li(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(4), one W(1), and two equivalent Mn(2) atoms. In the ninth O site, O(9) is bonded to one Li(2), one Li(5), one W(2), and one Mn(2) atom to form distorted OLi2MnW tetrahedra that share  a cornercorner with one O(9)Li2MnW tetrahedra, corners with two equivalent O(5)Li2Mn2 tetrahedra,  an edgeedge with one O(9)Li2MnW tetrahedra, and  an edgeedge with one O(10)Li2Mn2 trigonal pyramid. In the tenth O site, O(10) is bonded to one Li(5), one Li(6), and two equivalent Mn(2) atoms to form OLi2Mn2 trigonal pyramids that share  a cornercorner with one O(2)Li3W tetrahedra, corners with three equivalent O(5)Li2Mn2 tetrahedra, corners with two equivalent O(6)Li2MnW trigonal pyramids, and edges with two equivalent O(9)Li2MnW tetrahedra. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(3), one W(2), and one Mn(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(2), one W(2), and two equivalent Mn(2) atoms. is represented by the CIF card [CIF]
data_Li7Mn3(WO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.908
_cell_length_b   5.908
_cell_length_c   9.652
_cell_angle_alpha   89.834
_cell_angle_beta   89.834
_cell_angle_gamma   59.491
_symmetry_Int_Tables_number   1
_cell_volume   290.206
_cell_formula_units_Z   1
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  0.827  0.335  0.207  1.0
  Li  Li1  1  0.674  0.674  0.903  1.0
  Li  Li2  1  0.993  0.993  0.998  1.0
  Li  Li3  1  0.998  0.998  0.484  1.0
  Li  Li4  1  0.335  0.827  0.207  1.0
  Li  Li5  1  0.171  0.171  0.715  1.0
  Li  Li6  1  0.334  0.334  0.408  1.0
  Mn  Mn7  1  0.821  0.821  0.233  1.0
  Mn  Mn8  1  0.660  0.163  0.717  1.0
  Mn  Mn9  1  0.163  0.660  0.717  1.0
  W  W10  1  0.647  0.647  0.485  1.0
  W  W11  1  0.329  0.329  0.992  1.0
  O  O12  1  0.828  0.338  0.590  1.0
  O  O13  1  0.517  0.517  0.356  1.0
  O  O14  1  0.692  0.692  0.112  1.0
  O  O15  1  0.983  0.983  0.292  1.0
  O  O16  1  0.993  0.993  0.805  1.0
  O  O17  1  0.338  0.828  0.590  1.0
  O  O18  1  0.961  0.538  0.356  1.0
  O  O19  1  0.538  0.961  0.356  1.0
  O  O20  1  0.169  0.169  0.073  1.0
  O  O21  1  0.835  0.835  0.603  1.0
  O  O22  1  0.501  0.043  0.842  1.0
  O  O23  1  0.043  0.501  0.842  1.0
  O  O24  1  0.345  0.345  0.612  1.0
  O  O25  1  0.649  0.172  0.089  1.0
  O  O26  1  0.483  0.483  0.833  1.0
  O  O27  1  0.172  0.649  0.089  1.0
[/CIF]
.
The crystal structure described by Li7Mn3(WO8)2 is Hausmannite-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(11), one O(2), one O(3), one O(4), one O(6), and one O(7) atom to form LiO6 octahedra that share corners with two equivalent W(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one W(1)O6 octahedra, edges with two equivalent Li(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the second Li site, Li(2) is bonded to one O(12), one O(3), and two equivalent O(9) atoms to form LiO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Li(1)O6 octahedra, corners with two equivalent Li(5)O6 octahedra, corners with three equivalent W(2)O6 octahedra, and corners with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-67°. In the third Li site, Li(3) is bonded to one O(5), one O(7), and two equivalent O(11) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent W(2)O6 octahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-65°. In the fourth Li site, Li(4) is bonded in a rectangular see-saw-like geometry to one O(4), one O(8), and two equivalent O(1) atoms. In the fifth Li site, Li(5) is bonded to one O(10), one O(5), two equivalent O(1), and two equivalent O(9) atoms to form LiO6 octahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one W(2)O6 octahedra, and edges with four equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles are 46°. In the sixth Li site, Li(6) is bonded to one O(10), one O(2), and two equivalent O(6) atoms to form LiO4 tetrahedra that share  a cornercorner with one Li(5)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, corners with three equivalent W(1)O6 octahedra, and corners with four equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-65°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms to form distorted WO6 octahedra that share corners with two equivalent Li(5)O6 octahedra, corners with four equivalent Mn(2)O6 octahedra, corners with three equivalent Li(6)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. In the second W site, W(2) is bonded to one O(12), one O(7), two equivalent O(11), and two equivalent O(9) atoms to form distorted WO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Li(1)O6 octahedra, corners with three equivalent Li(2)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra,  an edgeedge with one Li(5)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(11), and two equivalent O(6) atoms to form distorted MnO6 octahedra that share corners with two equivalent W(2)O6 octahedra,  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra,  an edgeedge with one W(1)O6 octahedra, edges with four equivalent Li(1)O6 octahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(12), one O(5), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra,  an edgeedge with one W(2)O6 octahedra, edges with two equivalent Li(5)O6 octahedra, and edges with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(4), one Li(5), one W(1), and one Mn(2) atom. In the second O site, O(2) is bonded to one Li(6), two equivalent Li(1), and one W(1) atom to form distorted OLi3W tetrahedra that share corners with two equivalent O(4)Li3Mn tetrahedra,  a cornercorner with one O(10)Li2Mn2 trigonal pyramid, corners with two equivalent O(6)Li2MnW trigonal pyramids, and edges with two equivalent O(6)Li2MnW trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), two equivalent Li(1), and one Mn(1) atom. In the fourth O site, O(4) is bonded to one Li(4), two equivalent Li(1), and one Mn(1) atom to form OLi3Mn tetrahedra that share corners with two equivalent O(2)Li3W tetrahedra and corners with four equivalent O(6)Li2MnW trigonal pyramids. In the fifth O site, O(5) is bonded to one Li(3), one Li(5), and two equivalent Mn(2) atoms to form OLi2Mn2 tetrahedra that share corners with four equivalent O(9)Li2MnW tetrahedra and corners with three equivalent O(10)Li2Mn2 trigonal pyramids. In the sixth O site, O(6) is bonded to one Li(1), one Li(6), one W(1), and one Mn(1) atom to form distorted OLi2MnW trigonal pyramids that share  a cornercorner with one O(2)Li3W tetrahedra, corners with two equivalent O(4)Li3Mn tetrahedra,  a cornercorner with one O(10)Li2Mn2 trigonal pyramid,  a cornercorner with one O(6)Li2MnW trigonal pyramid,  an edgeedge with one O(2)Li3W tetrahedra, and  an edgeedge with one O(6)Li2MnW trigonal pyramid. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Li(3), two equivalent Li(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(4), one W(1), and two equivalent Mn(2) atoms. In the ninth O site, O(9) is bonded to one Li(2), one Li(5), one W(2), and one Mn(2) atom to form distorted OLi2MnW tetrahedra that share  a cornercorner with one O(9)Li2MnW tetrahedra, corners with two equivalent O(5)Li2Mn2 tetrahedra,  an edgeedge with one O(9)Li2MnW tetrahedra, and  an edgeedge with one O(10)Li2Mn2 trigonal pyramid. In the tenth O site, O(10) is bonded to one Li(5), one Li(6), and two equivalent Mn(2) atoms to form OLi2Mn2 trigonal pyramids that share  a cornercorner with one O(2)Li3W tetrahedra, corners with three equivalent O(5)Li2Mn2 tetrahedra, corners with two equivalent O(6)Li2MnW trigonal pyramids, and edges with two equivalent O(9)Li2MnW tetrahedra. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Li(1), one Li(3), one W(2), and one Mn(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(2), one W(2), and two equivalent Mn(2) atoms. is represented by the CIF card [CIF]
data_Li7Mn3(WO8)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.908
_cell_length_b   5.908
_cell_length_c   9.652
_cell_angle_alpha   89.834
_cell_angle_beta   89.834
_cell_angle_gamma   59.491
_symmetry_Int_Tables_number   1
_cell_volume   290.206
_cell_formula_units_Z   1
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  0.827  0.335  0.207  1.0
  Li  Li1  1  0.674  0.674  0.903  1.0
  Li  Li2  1  0.993  0.993  0.998  1.0
  Li  Li3  1  0.998  0.998  0.484  1.0
  Li  Li4  1  0.335  0.827  0.207  1.0
  Li  Li5  1  0.171  0.171  0.715  1.0
  Li  Li6  1  0.334  0.334  0.408  1.0
  Mn  Mn7  1  0.821  0.821  0.233  1.0
  Mn  Mn8  1  0.660  0.163  0.717  1.0
  Mn  Mn9  1  0.163  0.660  0.717  1.0
  W  W10  1  0.647  0.647  0.485  1.0
  W  W11  1  0.329  0.329  0.992  1.0
  O  O12  1  0.828  0.338  0.590  1.0
  O  O13  1  0.517  0.517  0.356  1.0
  O  O14  1  0.692  0.692  0.112  1.0
  O  O15  1  0.983  0.983  0.292  1.0
  O  O16  1  0.993  0.993  0.805  1.0
  O  O17  1  0.338  0.828  0.590  1.0
  O  O18  1  0.961  0.538  0.356  1.0
  O  O19  1  0.538  0.961  0.356  1.0
  O  O20  1  0.169  0.169  0.073  1.0
  O  O21  1  0.835  0.835  0.603  1.0
  O  O22  1  0.501  0.043  0.842  1.0
  O  O23  1  0.043  0.501  0.842  1.0
  O  O24  1  0.345  0.345  0.612  1.0
  O  O25  1  0.649  0.172  0.089  1.0
  O  O26  1  0.483  0.483  0.833  1.0
  O  O27  1  0.172  0.649  0.089  1.0
[/CIF]
.