The structure described by Li7Mn2(CoO4)3 crystallizes in the triclinic P1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a 1-coordinate geometry to one O(10), one O(4), and two equivalent O(1) atoms. In the second Li site, Li(2) is bonded to one O(11), one O(5), two equivalent O(2), and two equivalent O(8) atoms to form distorted LiO6 octahedra that share corners with three equivalent Co(3)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the third Li site, Li(3) is bonded to one O(12), one O(6), two equivalent O(3), and two equivalent O(9) atoms to form distorted LiO6 octahedra that share corners with three equivalent Co(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(1), one O(7), two equivalent O(10), and two equivalent O(4) atoms. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(11), and two equivalent O(5) atoms. In the sixth Li site, Li(6) is bonded in a 6-coordinate geometry to one O(3), one O(9), two equivalent O(12), and two equivalent O(6) atoms. In the seventh Li site, Li(7) is bonded in a 6-coordinate geometry to one O(1), one O(12), two equivalent O(4), and two equivalent O(9) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(9), two equivalent O(1), and two equivalent O(12) atoms to form distorted MnO6 octahedra that share edges with two equivalent Li(3)O6 octahedra and edges with two equivalent Mn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to one O(10), one O(2), two equivalent O(5), and two equivalent O(7) atoms to form distorted MnO6 octahedra that share edges with two equivalent Li(2)O6 octahedra and edges with two equivalent Mn(2)O6 octahedra. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(5), one O(7), two equivalent O(10), and two equivalent O(2) atoms. In the second Co site, Co(2) is bonded to one O(6), one O(8), two equivalent O(11), and two equivalent O(3) atoms to form distorted CoO6 octahedra that share corners with three equivalent Li(3)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with four equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. In the third Co site, Co(3) is bonded to one O(11), one O(3), two equivalent O(6), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with three equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(4), one Li(7), two equivalent Li(1), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 octahedra that share corners with three equivalent O(12)Li4Mn2 octahedra,  an edgeedge with one O(12)Li4Mn2 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(4)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second O site, O(2) is bonded to one Li(5), two equivalent Li(2), one Mn(2), and two equivalent Co(1) atoms to form distorted OLi3MnCo2 octahedra that share corners with three equivalent O(8)Li3Co3 octahedra,  an edgeedge with one O(8)Li3Co3 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, and edges with two equivalent O(2)Li3MnCo2 octahedra. The corner-sharing octahedral tilt angles are 5°. In the third O site, O(3) is bonded to one Li(6), two equivalent Li(3), one Co(3), and two equivalent Co(2) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(11)Li3Co3 octahedra, corners with three equivalent O(9)Li5Mn octahedra,  an edgeedge with one O(11)Li3Co3 octahedra,  an edgeedge with one O(9)Li5Mn octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(8)Li3Co3 octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, and edges with four equivalent O(6)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 2-10°. In the fourth O site, O(4) is bonded to one Li(1), two equivalent Li(4), two equivalent Li(7), and one Mn(1) atom to form distorted OLi5Mn octahedra that share corners with three equivalent O(9)Li5Mn octahedra,  an edgeedge with one O(9)Li5Mn octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, edges with two equivalent O(4)Li5Mn octahedra, and edges with four equivalent O(1)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(2), two equivalent Li(5), two equivalent Mn(2), and one Co(1) atom. In the sixth O site, O(6) is bonded to one Li(3), two equivalent Li(6), one Co(2), and two equivalent Co(3) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(8)Li3Co3 octahedra, corners with three equivalent O(12)Li4Mn2 octahedra,  an edgeedge with one O(8)Li3Co3 octahedra,  an edgeedge with one O(12)Li4Mn2 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(3)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(4), two equivalent Mn(2), and one Co(1) atom. In the eighth O site, O(8) is bonded to one Li(5), two equivalent Li(2), one Co(2), and two equivalent Co(3) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(6)Li3Co3 octahedra, corners with three equivalent O(2)Li3MnCo2 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(2)Li3MnCo2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(8)Li3Co3 octahedra, and edges with four equivalent O(11)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the ninth O site, O(9) is bonded to one Li(6), two equivalent Li(3), two equivalent Li(7), and one Mn(1) atom to form distorted OLi5Mn octahedra that share corners with three equivalent O(3)Li3Co3 octahedra, corners with three equivalent O(4)Li5Mn octahedra,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(4)Li5Mn octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(12)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Li(1), two equivalent Li(4), one Mn(2), and two equivalent Co(1) atoms. In the eleventh O site, O(11) is bonded to one Li(2), two equivalent Li(5), one Co(3), and two equivalent Co(2) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(3)Li3Co3 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(2)Li3MnCo2 octahedra, and edges with four equivalent O(8)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 2-4°. In the twelfth O site, O(12) is bonded to one Li(3), one Li(7), two equivalent Li(6), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 octahedra that share corners with three equivalent O(6)Li3Co3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(1)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, edges with two equivalent O(4)Li5Mn octahedra, and edges with four equivalent O(9)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the CIF card [CIF]
data_Li7Mn2(CoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.890
_cell_length_b   5.147
_cell_length_c   14.887
_cell_angle_alpha   99.947
_cell_angle_beta   94.729
_cell_angle_gamma   90.852
_symmetry_Int_Tables_number   1
_cell_volume   217.292
_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  0.069  0.568  0.146  1.0
  Li  Li1  1  0.753  0.246  0.505  1.0
  Li  Li2  1  0.430  0.923  0.839  1.0
  Li  Li3  1  0.567  0.078  0.158  1.0
  Li  Li4  1  0.252  0.742  0.508  1.0
  Li  Li5  1  0.922  0.434  0.844  1.0
  Li  Li6  1  0.501  0.499  0.999  1.0
  Mn  Mn7  1  0.002  0.001  0.000  1.0
  Mn  Mn8  1  0.163  0.166  0.332  1.0
  Co  Co9  1  0.665  0.665  0.332  1.0
  Co  Co10  1  0.334  0.336  0.668  1.0
  Co  Co11  1  0.835  0.835  0.669  1.0
  O  O12  1  0.535  0.809  0.075  1.0
  O  O13  1  0.202  0.442  0.407  1.0
  O  O14  1  0.891  0.143  0.742  1.0
  O  O15  1  0.037  0.264  0.077  1.0
  O  O16  1  0.695  0.982  0.407  1.0
  O  O17  1  0.393  0.639  0.744  1.0
  O  O18  1  0.632  0.350  0.259  1.0
  O  O19  1  0.281  0.028  0.590  1.0
  O  O20  1  0.964  0.739  0.923  1.0
  O  O21  1  0.129  0.889  0.261  1.0
  O  O22  1  0.777  0.532  0.588  1.0
  O  O23  1  0.471  0.188  0.927  1.0
[/CIF]
.
The structure described by Li7Mn2(CoO4)3 crystallizes in the triclinic P1 space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a 1-coordinate geometry to one O(10), one O(4), and two equivalent O(1) atoms. In the second Li site, Li(2) is bonded to one O(11), one O(5), two equivalent O(2), and two equivalent O(8) atoms to form distorted LiO6 octahedra that share corners with three equivalent Co(3)O6 octahedra,  an edgeedge with one Co(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the third Li site, Li(3) is bonded to one O(12), one O(6), two equivalent O(3), and two equivalent O(9) atoms to form distorted LiO6 octahedra that share corners with three equivalent Co(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(1), one O(7), two equivalent O(10), and two equivalent O(4) atoms. In the fifth Li site, Li(5) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(11), and two equivalent O(5) atoms. In the sixth Li site, Li(6) is bonded in a 6-coordinate geometry to one O(3), one O(9), two equivalent O(12), and two equivalent O(6) atoms. In the seventh Li site, Li(7) is bonded in a 6-coordinate geometry to one O(1), one O(12), two equivalent O(4), and two equivalent O(9) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(9), two equivalent O(1), and two equivalent O(12) atoms to form distorted MnO6 octahedra that share edges with two equivalent Li(3)O6 octahedra and edges with two equivalent Mn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to one O(10), one O(2), two equivalent O(5), and two equivalent O(7) atoms to form distorted MnO6 octahedra that share edges with two equivalent Li(2)O6 octahedra and edges with two equivalent Mn(2)O6 octahedra. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one O(5), one O(7), two equivalent O(10), and two equivalent O(2) atoms. In the second Co site, Co(2) is bonded to one O(6), one O(8), two equivalent O(11), and two equivalent O(3) atoms to form distorted CoO6 octahedra that share corners with three equivalent Li(3)O6 octahedra,  an edgeedge with one Li(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with four equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-10°. In the third Co site, Co(3) is bonded to one O(11), one O(3), two equivalent O(6), and two equivalent O(8) atoms to form distorted CoO6 octahedra that share corners with three equivalent Li(2)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with four equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Li(4), one Li(7), two equivalent Li(1), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 octahedra that share corners with three equivalent O(12)Li4Mn2 octahedra,  an edgeedge with one O(12)Li4Mn2 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(4)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second O site, O(2) is bonded to one Li(5), two equivalent Li(2), one Mn(2), and two equivalent Co(1) atoms to form distorted OLi3MnCo2 octahedra that share corners with three equivalent O(8)Li3Co3 octahedra,  an edgeedge with one O(8)Li3Co3 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, and edges with two equivalent O(2)Li3MnCo2 octahedra. The corner-sharing octahedral tilt angles are 5°. In the third O site, O(3) is bonded to one Li(6), two equivalent Li(3), one Co(3), and two equivalent Co(2) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(11)Li3Co3 octahedra, corners with three equivalent O(9)Li5Mn octahedra,  an edgeedge with one O(11)Li3Co3 octahedra,  an edgeedge with one O(9)Li5Mn octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(8)Li3Co3 octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, and edges with four equivalent O(6)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 2-10°. In the fourth O site, O(4) is bonded to one Li(1), two equivalent Li(4), two equivalent Li(7), and one Mn(1) atom to form distorted OLi5Mn octahedra that share corners with three equivalent O(9)Li5Mn octahedra,  an edgeedge with one O(9)Li5Mn octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, edges with two equivalent O(4)Li5Mn octahedra, and edges with four equivalent O(1)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(2), two equivalent Li(5), two equivalent Mn(2), and one Co(1) atom. In the sixth O site, O(6) is bonded to one Li(3), two equivalent Li(6), one Co(2), and two equivalent Co(3) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(8)Li3Co3 octahedra, corners with three equivalent O(12)Li4Mn2 octahedra,  an edgeedge with one O(8)Li3Co3 octahedra,  an edgeedge with one O(12)Li4Mn2 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(3)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Li(4), two equivalent Mn(2), and one Co(1) atom. In the eighth O site, O(8) is bonded to one Li(5), two equivalent Li(2), one Co(2), and two equivalent Co(3) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(6)Li3Co3 octahedra, corners with three equivalent O(2)Li3MnCo2 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(2)Li3MnCo2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(8)Li3Co3 octahedra, and edges with four equivalent O(11)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 1-5°. In the ninth O site, O(9) is bonded to one Li(6), two equivalent Li(3), two equivalent Li(7), and one Mn(1) atom to form distorted OLi5Mn octahedra that share corners with three equivalent O(3)Li3Co3 octahedra, corners with three equivalent O(4)Li5Mn octahedra,  an edgeedge with one O(3)Li3Co3 octahedra,  an edgeedge with one O(4)Li5Mn octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(1)Li4Mn2 octahedra, edges with two equivalent O(9)Li5Mn octahedra, and edges with four equivalent O(12)Li4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Li(1), two equivalent Li(4), one Mn(2), and two equivalent Co(1) atoms. In the eleventh O site, O(11) is bonded to one Li(2), two equivalent Li(5), one Co(3), and two equivalent Co(2) atoms to form distorted OLi3Co3 octahedra that share corners with three equivalent O(3)Li3Co3 octahedra,  an edgeedge with one O(3)Li3Co3 octahedra, edges with two equivalent O(11)Li3Co3 octahedra, edges with two equivalent O(6)Li3Co3 octahedra, edges with two equivalent O(2)Li3MnCo2 octahedra, and edges with four equivalent O(8)Li3Co3 octahedra. The corner-sharing octahedral tilt angles range from 2-4°. In the twelfth O site, O(12) is bonded to one Li(3), one Li(7), two equivalent Li(6), and two equivalent Mn(1) atoms to form distorted OLi4Mn2 octahedra that share corners with three equivalent O(6)Li3Co3 octahedra, corners with three equivalent O(1)Li4Mn2 octahedra,  an edgeedge with one O(6)Li3Co3 octahedra,  an edgeedge with one O(1)Li4Mn2 octahedra, edges with two equivalent O(3)Li3Co3 octahedra, edges with two equivalent O(12)Li4Mn2 octahedra, edges with two equivalent O(4)Li5Mn octahedra, and edges with four equivalent O(9)Li5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the CIF card [CIF]
data_Li7Mn2(CoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.890
_cell_length_b   5.147
_cell_length_c   14.887
_cell_angle_alpha   99.947
_cell_angle_beta   94.729
_cell_angle_gamma   90.852
_symmetry_Int_Tables_number   1
_cell_volume   217.292
_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  0.069  0.568  0.146  1.0
  Li  Li1  1  0.753  0.246  0.505  1.0
  Li  Li2  1  0.430  0.923  0.839  1.0
  Li  Li3  1  0.567  0.078  0.158  1.0
  Li  Li4  1  0.252  0.742  0.508  1.0
  Li  Li5  1  0.922  0.434  0.844  1.0
  Li  Li6  1  0.501  0.499  0.999  1.0
  Mn  Mn7  1  0.002  0.001  0.000  1.0
  Mn  Mn8  1  0.163  0.166  0.332  1.0
  Co  Co9  1  0.665  0.665  0.332  1.0
  Co  Co10  1  0.334  0.336  0.668  1.0
  Co  Co11  1  0.835  0.835  0.669  1.0
  O  O12  1  0.535  0.809  0.075  1.0
  O  O13  1  0.202  0.442  0.407  1.0
  O  O14  1  0.891  0.143  0.742  1.0
  O  O15  1  0.037  0.264  0.077  1.0
  O  O16  1  0.695  0.982  0.407  1.0
  O  O17  1  0.393  0.639  0.744  1.0
  O  O18  1  0.632  0.350  0.259  1.0
  O  O19  1  0.281  0.028  0.590  1.0
  O  O20  1  0.964  0.739  0.923  1.0
  O  O21  1  0.129  0.889  0.261  1.0
  O  O22  1  0.777  0.532  0.588  1.0
  O  O23  1  0.471  0.188  0.927  1.0
[/CIF]
.