The material described by Li2Mn7O12 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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,  an edgeedge with one Mn(6)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-17°. In the second Li site, Li(2) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-17°. There are seven inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(5)O6 octahedra, and edges with three equivalent Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-17°. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-13°. In the third Mn site, Mn(3) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-15°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-16°. In the fifth Mn site, Mn(5) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-12°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-17°. In the seventh Mn site, Mn(7) is bonded to one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(8)Li2Mn3 square pyramid,  a cornercorner with one O(11)LiMn4 square pyramid, corners with two equivalent O(12)Li2Mn3 square pyramids, corners with two equivalent O(2)LiMn4 square pyramids,  an edgeedge with one O(12)Li2Mn3 square pyramid,  an edgeedge with one O(10)LiMn4 square pyramid, and edges with two equivalent O(8)Li2Mn3 square pyramids. In the second O site, O(2) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(12)Li2Mn3 square pyramid,  a cornercorner with one O(10)LiMn4 square pyramid, corners with two equivalent O(1)Li2Mn3 square pyramids, corners with two equivalent O(11)LiMn4 square pyramids,  an edgeedge with one O(8)Li2Mn3 square pyramid,  an edgeedge with one O(11)LiMn4 square pyramid, and edges with two equivalent O(10)LiMn4 square pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom. In the sixth O site, O(6) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(1)Li2Mn3 square pyramid,  a cornercorner with one O(11)LiMn4 square pyramid, corners with two equivalent O(10)LiMn4 square pyramids,  an edgeedge with one O(2)LiMn4 square pyramid, edges with two equivalent O(1)Li2Mn3 square pyramids, and edges with two equivalent O(12)Li2Mn3 square pyramids. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom. In the tenth O site, O(10) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(12)Li2Mn3 square pyramid,  a cornercorner with one O(2)LiMn4 square pyramid, corners with two equivalent O(8)Li2Mn3 square pyramids,  an edgeedge with one O(1)Li2Mn3 square pyramid, edges with two equivalent O(11)LiMn4 square pyramids, and edges with two equivalent O(2)LiMn4 square pyramids. In the eleventh O site, O(11) is bonded to one Li(1), one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(1)Li2Mn3 square pyramid,  a cornercorner with one O(8)Li2Mn3 square pyramid, corners with two equivalent O(2)LiMn4 square pyramids,  an edgeedge with one O(12)Li2Mn3 square pyramid,  an edgeedge with one O(2)LiMn4 square pyramid, and edges with two equivalent O(10)LiMn4 square pyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(10)LiMn4 square pyramid,  a cornercorner with one O(2)LiMn4 square pyramid, corners with two equivalent O(1)Li2Mn3 square pyramids,  an edgeedge with one O(1)Li2Mn3 square pyramid,  an edgeedge with one O(11)LiMn4 square pyramid, and edges with two equivalent O(8)Li2Mn3 square pyramids. is represented by the CIF card [CIF]
data_Li2Mn7O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.011
_cell_length_b   5.229
_cell_length_c   10.008
_cell_angle_alpha   78.221
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   461.651
_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  0.911  0.493  0.269  1.0
  Li  Li1  1  0.581  0.747  0.499  1.0
  Li  Li2  1  0.411  0.507  0.731  1.0
  Li  Li3  1  0.081  0.253  0.501  1.0
  Mn  Mn4  1  0.916  0.239  0.014  1.0
  Mn  Mn5  1  0.923  0.757  0.503  1.0
  Mn  Mn6  1  0.744  0.241  0.511  1.0
  Mn  Mn7  1  0.741  0.998  0.263  1.0
  Mn  Mn8  1  0.748  0.757  0.993  1.0
  Mn  Mn9  1  0.583  0.256  0.990  1.0
  Mn  Mn10  1  0.757  0.505  0.743  1.0
  Mn  Mn11  1  0.423  0.243  0.497  1.0
  Mn  Mn12  1  0.416  0.761  0.986  1.0
  Mn  Mn13  1  0.248  0.243  0.007  1.0
  Mn  Mn14  1  0.241  0.002  0.737  1.0
  Mn  Mn15  1  0.244  0.759  0.489  1.0
  Mn  Mn16  1  0.257  0.495  0.257  1.0
  Mn  Mn17  1  0.083  0.744  0.010  1.0
  O  O18  1  0.897  0.120  0.399  1.0
  O  O19  1  0.884  0.877  0.118  1.0
  O  O20  1  0.771  0.841  0.622  1.0
  O  O21  1  0.918  0.608  0.915  1.0
  O  O22  1  0.743  0.166  0.879  1.0
  O  O23  1  0.895  0.402  0.612  1.0
  O  O24  1  0.596  0.125  0.399  1.0
  O  O25  1  0.771  0.663  0.383  1.0
  O  O26  1  0.581  0.888  0.086  1.0
  O  O27  1  0.762  0.336  0.131  1.0
  O  O28  1  0.607  0.609  0.877  1.0
  O  O29  1  0.581  0.370  0.605  1.0
  O  O30  1  0.384  0.123  0.882  1.0
  O  O31  1  0.397  0.880  0.601  1.0
  O  O32  1  0.271  0.159  0.378  1.0
  O  O33  1  0.395  0.598  0.388  1.0
  O  O34  1  0.243  0.834  0.121  1.0
  O  O35  1  0.418  0.392  0.085  1.0
  O  O36  1  0.081  0.112  0.914  1.0
  O  O37  1  0.271  0.337  0.617  1.0
  O  O38  1  0.096  0.875  0.601  1.0
  O  O39  1  0.262  0.664  0.869  1.0
  O  O40  1  0.081  0.630  0.395  1.0
  O  O41  1  0.107  0.391  0.123  1.0
[/CIF]
.
The material described by Li2Mn7O12 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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,  an edgeedge with one Mn(6)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, and edges with two equivalent Mn(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-17°. In the second Li site, Li(2) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-17°. There are seven inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(5)O6 octahedra, and edges with three equivalent Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-17°. In the second Mn site, Mn(2) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-13°. In the third Mn site, Mn(3) is bonded to one O(1), one O(12), one O(3), one O(6), one O(7), and one O(8) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-15°. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(10), one O(2), one O(7), one O(8), and one O(9) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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,  an edgeedge with one Mn(6)O6 octahedra, and edges with two equivalent Li(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-16°. In the fifth Mn site, Mn(5) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-12°. In the sixth Mn site, Mn(6) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra,  a cornercorner with one Mn(7)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Mn(4)O6 octahedra,  an edgeedge with one Mn(7)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with three equivalent Mn(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-17°. In the seventh Mn site, Mn(7) is bonded to one O(11), one O(12), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MnO6 octahedra that share  a cornercorner with one Li(2)O6 octahedra,  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra,  a cornercorner with one Mn(3)O6 octahedra,  a cornercorner with one Mn(5)O6 octahedra,  a cornercorner with one Mn(6)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Mn(1)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, and  an edgeedge with one Mn(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-17°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(8)Li2Mn3 square pyramid,  a cornercorner with one O(11)LiMn4 square pyramid, corners with two equivalent O(12)Li2Mn3 square pyramids, corners with two equivalent O(2)LiMn4 square pyramids,  an edgeedge with one O(12)Li2Mn3 square pyramid,  an edgeedge with one O(10)LiMn4 square pyramid, and edges with two equivalent O(8)Li2Mn3 square pyramids. In the second O site, O(2) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(12)Li2Mn3 square pyramid,  a cornercorner with one O(10)LiMn4 square pyramid, corners with two equivalent O(1)Li2Mn3 square pyramids, corners with two equivalent O(11)LiMn4 square pyramids,  an edgeedge with one O(8)Li2Mn3 square pyramid,  an edgeedge with one O(11)LiMn4 square pyramid, and edges with two equivalent O(10)LiMn4 square pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom. In the sixth O site, O(6) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(4) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(1)Li2Mn3 square pyramid,  a cornercorner with one O(11)LiMn4 square pyramid, corners with two equivalent O(10)LiMn4 square pyramids,  an edgeedge with one O(2)LiMn4 square pyramid, edges with two equivalent O(1)Li2Mn3 square pyramids, and edges with two equivalent O(12)Li2Mn3 square pyramids. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom. In the tenth O site, O(10) is bonded to one Li(1), one Mn(1), one Mn(4), one Mn(5), and one Mn(6) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(12)Li2Mn3 square pyramid,  a cornercorner with one O(2)LiMn4 square pyramid, corners with two equivalent O(8)Li2Mn3 square pyramids,  an edgeedge with one O(1)Li2Mn3 square pyramid, edges with two equivalent O(11)LiMn4 square pyramids, and edges with two equivalent O(2)LiMn4 square pyramids. In the eleventh O site, O(11) is bonded to one Li(1), one Mn(1), one Mn(5), one Mn(6), and one Mn(7) atom to form OLiMn4 square pyramids that share  a cornercorner with one O(1)Li2Mn3 square pyramid,  a cornercorner with one O(8)Li2Mn3 square pyramid, corners with two equivalent O(2)LiMn4 square pyramids,  an edgeedge with one O(12)Li2Mn3 square pyramid,  an edgeedge with one O(2)LiMn4 square pyramid, and edges with two equivalent O(10)LiMn4 square pyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(2), one Mn(2), one Mn(3), and one Mn(7) atom to form OLi2Mn3 square pyramids that share  a cornercorner with one O(10)LiMn4 square pyramid,  a cornercorner with one O(2)LiMn4 square pyramid, corners with two equivalent O(1)Li2Mn3 square pyramids,  an edgeedge with one O(1)Li2Mn3 square pyramid,  an edgeedge with one O(11)LiMn4 square pyramid, and edges with two equivalent O(8)Li2Mn3 square pyramids. is represented by the CIF card [CIF]
data_Li2Mn7O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.011
_cell_length_b   5.229
_cell_length_c   10.008
_cell_angle_alpha   78.221
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   461.651
_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  0.911  0.493  0.269  1.0
  Li  Li1  1  0.581  0.747  0.499  1.0
  Li  Li2  1  0.411  0.507  0.731  1.0
  Li  Li3  1  0.081  0.253  0.501  1.0
  Mn  Mn4  1  0.916  0.239  0.014  1.0
  Mn  Mn5  1  0.923  0.757  0.503  1.0
  Mn  Mn6  1  0.744  0.241  0.511  1.0
  Mn  Mn7  1  0.741  0.998  0.263  1.0
  Mn  Mn8  1  0.748  0.757  0.993  1.0
  Mn  Mn9  1  0.583  0.256  0.990  1.0
  Mn  Mn10  1  0.757  0.505  0.743  1.0
  Mn  Mn11  1  0.423  0.243  0.497  1.0
  Mn  Mn12  1  0.416  0.761  0.986  1.0
  Mn  Mn13  1  0.248  0.243  0.007  1.0
  Mn  Mn14  1  0.241  0.002  0.737  1.0
  Mn  Mn15  1  0.244  0.759  0.489  1.0
  Mn  Mn16  1  0.257  0.495  0.257  1.0
  Mn  Mn17  1  0.083  0.744  0.010  1.0
  O  O18  1  0.897  0.120  0.399  1.0
  O  O19  1  0.884  0.877  0.118  1.0
  O  O20  1  0.771  0.841  0.622  1.0
  O  O21  1  0.918  0.608  0.915  1.0
  O  O22  1  0.743  0.166  0.879  1.0
  O  O23  1  0.895  0.402  0.612  1.0
  O  O24  1  0.596  0.125  0.399  1.0
  O  O25  1  0.771  0.663  0.383  1.0
  O  O26  1  0.581  0.888  0.086  1.0
  O  O27  1  0.762  0.336  0.131  1.0
  O  O28  1  0.607  0.609  0.877  1.0
  O  O29  1  0.581  0.370  0.605  1.0
  O  O30  1  0.384  0.123  0.882  1.0
  O  O31  1  0.397  0.880  0.601  1.0
  O  O32  1  0.271  0.159  0.378  1.0
  O  O33  1  0.395  0.598  0.388  1.0
  O  O34  1  0.243  0.834  0.121  1.0
  O  O35  1  0.418  0.392  0.085  1.0
  O  O36  1  0.081  0.112  0.914  1.0
  O  O37  1  0.271  0.337  0.617  1.0
  O  O38  1  0.096  0.875  0.601  1.0
  O  O39  1  0.262  0.664  0.869  1.0
  O  O40  1  0.081  0.630  0.395  1.0
  O  O41  1  0.107  0.391  0.123  1.0
[/CIF]
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