The crystal structure described by Li2Mn3(PO4)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted square co-planar geometry to two equivalent O(4) and two equivalent O(5) atoms. In the second Li site, Li(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(5), one O(6), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(2)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-59°. In the second P site, P(2) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-62°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Mn(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. is represented by the CIF file [CIF]
data_Li2Mn3(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.732
_cell_length_b   8.732
_cell_length_c   6.679
_cell_angle_alpha   71.557
_cell_angle_beta   71.557
_cell_angle_gamma   92.488
_symmetry_Int_Tables_number   1
_cell_volume   452.449
_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  0.500  0.500  0.500  1.0
  Li  Li1  1  0.500  0.500  0.000  1.0
  Li  Li2  1  0.990  0.010  0.750  1.0
  Li  Li3  1  0.010  0.990  0.250  1.0
  Mn  Mn4  1  0.063  0.380  0.362  1.0
  Mn  Mn5  1  0.380  0.063  0.862  1.0
  Mn  Mn6  1  0.274  0.726  0.750  1.0
  Mn  Mn7  1  0.726  0.274  0.250  1.0
  Mn  Mn8  1  0.620  0.937  0.138  1.0
  Mn  Mn9  1  0.937  0.620  0.638  1.0
  P  P10  1  0.123  0.338  0.875  1.0
  P  P11  1  0.338  0.123  0.375  1.0
  P  P12  1  0.707  0.293  0.750  1.0
  P  P13  1  0.293  0.707  0.250  1.0
  P  P14  1  0.662  0.877  0.625  1.0
  P  P15  1  0.877  0.662  0.125  1.0
  O  O16  1  0.158  0.160  0.903  1.0
  O  O17  1  0.160  0.158  0.403  1.0
  O  O18  1  0.396  0.044  0.190  1.0
  O  O19  1  0.044  0.396  0.690  1.0
  O  O20  1  0.006  0.674  0.895  1.0
  O  O21  1  0.674  0.006  0.395  1.0
  O  O22  1  0.462  0.278  0.310  1.0
  O  O23  1  0.278  0.462  0.810  1.0
  O  O24  1  0.534  0.275  0.733  1.0
  O  O25  1  0.275  0.534  0.233  1.0
  O  O26  1  0.733  0.175  0.962  1.0
  O  O27  1  0.175  0.733  0.462  1.0
  O  O28  1  0.267  0.825  0.038  1.0
  O  O29  1  0.825  0.267  0.538  1.0
  O  O30  1  0.725  0.466  0.767  1.0
  O  O31  1  0.466  0.725  0.267  1.0
  O  O32  1  0.538  0.722  0.690  1.0
  O  O33  1  0.722  0.538  0.190  1.0
  O  O34  1  0.326  0.994  0.605  1.0
  O  O35  1  0.994  0.326  0.105  1.0
  O  O36  1  0.956  0.604  0.310  1.0
  O  O37  1  0.604  0.956  0.810  1.0
  O  O38  1  0.842  0.840  0.097  1.0
  O  O39  1  0.840  0.842  0.597  1.0
[/CIF]
.
The crystal structure described by Li2Mn3(PO4)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted square co-planar geometry to two equivalent O(4) and two equivalent O(5) atoms. In the second Li site, Li(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(3), one O(5), one O(6), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra,  an edgeedge with one Mn(1)O6 octahedra, and  an edgeedge with one Mn(2)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms to form distorted MnO6 octahedra that share corners with two equivalent P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra, and edges with two equivalent Mn(1)O6 octahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-59°. In the second P site, P(2) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Mn(2)O6 octahedra and corners with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-62°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Mn(1), and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Mn(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(2) atom. is represented by the CIF file [CIF]
data_Li2Mn3(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.732
_cell_length_b   8.732
_cell_length_c   6.679
_cell_angle_alpha   71.557
_cell_angle_beta   71.557
_cell_angle_gamma   92.488
_symmetry_Int_Tables_number   1
_cell_volume   452.449
_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  0.500  0.500  0.500  1.0
  Li  Li1  1  0.500  0.500  0.000  1.0
  Li  Li2  1  0.990  0.010  0.750  1.0
  Li  Li3  1  0.010  0.990  0.250  1.0
  Mn  Mn4  1  0.063  0.380  0.362  1.0
  Mn  Mn5  1  0.380  0.063  0.862  1.0
  Mn  Mn6  1  0.274  0.726  0.750  1.0
  Mn  Mn7  1  0.726  0.274  0.250  1.0
  Mn  Mn8  1  0.620  0.937  0.138  1.0
  Mn  Mn9  1  0.937  0.620  0.638  1.0
  P  P10  1  0.123  0.338  0.875  1.0
  P  P11  1  0.338  0.123  0.375  1.0
  P  P12  1  0.707  0.293  0.750  1.0
  P  P13  1  0.293  0.707  0.250  1.0
  P  P14  1  0.662  0.877  0.625  1.0
  P  P15  1  0.877  0.662  0.125  1.0
  O  O16  1  0.158  0.160  0.903  1.0
  O  O17  1  0.160  0.158  0.403  1.0
  O  O18  1  0.396  0.044  0.190  1.0
  O  O19  1  0.044  0.396  0.690  1.0
  O  O20  1  0.006  0.674  0.895  1.0
  O  O21  1  0.674  0.006  0.395  1.0
  O  O22  1  0.462  0.278  0.310  1.0
  O  O23  1  0.278  0.462  0.810  1.0
  O  O24  1  0.534  0.275  0.733  1.0
  O  O25  1  0.275  0.534  0.233  1.0
  O  O26  1  0.733  0.175  0.962  1.0
  O  O27  1  0.175  0.733  0.462  1.0
  O  O28  1  0.267  0.825  0.038  1.0
  O  O29  1  0.825  0.267  0.538  1.0
  O  O30  1  0.725  0.466  0.767  1.0
  O  O31  1  0.466  0.725  0.267  1.0
  O  O32  1  0.538  0.722  0.690  1.0
  O  O33  1  0.722  0.538  0.190  1.0
  O  O34  1  0.326  0.994  0.605  1.0
  O  O35  1  0.994  0.326  0.105  1.0
  O  O36  1  0.956  0.604  0.310  1.0
  O  O37  1  0.604  0.956  0.810  1.0
  O  O38  1  0.842  0.840  0.097  1.0
  O  O39  1  0.840  0.842  0.597  1.0
[/CIF]
.