The crystal structure described by Li2Mn(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted LiO5 trigonal bipyramids that share corners with five equivalent P(1)O4 tetrahedra and  an edgeedge with one Li(1)O5 trigonal bipyramid. Mn(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. 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 five equivalent Li(1)O5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Li(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.894
_cell_length_b   6.789
_cell_length_c   5.138
_cell_angle_alpha   106.961
_cell_angle_beta   113.446
_cell_angle_gamma   86.508
_symmetry_Int_Tables_number   1
_cell_volume   149.521
_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  0.214  0.159  0.715  1.0
  Li  Li1  1  0.786  0.841  0.285  1.0
  Mn  Mn2  1  0.500  0.500  0.500  1.0
  P  P3  1  0.134  0.727  0.869  1.0
  P  P4  1  0.866  0.273  0.131  1.0
  O  O5  1  0.109  0.881  0.698  1.0
  O  O6  1  0.251  0.520  0.715  1.0
  O  O7  1  0.180  0.333  0.149  1.0
  O  O8  1  0.353  0.791  0.194  1.0
  O  O9  1  0.647  0.209  0.806  1.0
  O  O10  1  0.820  0.667  0.851  1.0
  O  O11  1  0.749  0.480  0.285  1.0
  O  O12  1  0.891  0.119  0.302  1.0
[/CIF]
.
The crystal structure described by Li2Mn(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form distorted LiO5 trigonal bipyramids that share corners with five equivalent P(1)O4 tetrahedra and  an edgeedge with one Li(1)O5 trigonal bipyramid. Mn(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. 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 five equivalent Li(1)O5 trigonal bipyramids. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to two equivalent Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one P(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Mn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Li(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Mn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.894
_cell_length_b   6.789
_cell_length_c   5.138
_cell_angle_alpha   106.961
_cell_angle_beta   113.446
_cell_angle_gamma   86.508
_symmetry_Int_Tables_number   1
_cell_volume   149.521
_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  0.214  0.159  0.715  1.0
  Li  Li1  1  0.786  0.841  0.285  1.0
  Mn  Mn2  1  0.500  0.500  0.500  1.0
  P  P3  1  0.134  0.727  0.869  1.0
  P  P4  1  0.866  0.273  0.131  1.0
  O  O5  1  0.109  0.881  0.698  1.0
  O  O6  1  0.251  0.520  0.715  1.0
  O  O7  1  0.180  0.333  0.149  1.0
  O  O8  1  0.353  0.791  0.194  1.0
  O  O9  1  0.647  0.209  0.806  1.0
  O  O10  1  0.820  0.667  0.851  1.0
  O  O11  1  0.749  0.480  0.285  1.0
  O  O12  1  0.891  0.119  0.302  1.0
[/CIF]
.