The crystal structure described by LiCr2(PO4)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(7), and one O(8) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(8) atom to form CrO5 trigonal bipyramids that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-83°. In the second Cr site, Cr(2) is bonded to one O(1), one O(2), one O(6), one O(7), and two equivalent O(5) atoms to form distorted CrO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent Cr(1)O5 trigonal bipyramids,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Cr(1)O5 trigonal bipyramids, and  an edgeedge with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-62°. In the second P site, P(2) is bonded to one O(3), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra and corners with two equivalent Cr(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 35-46°. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Cr(2), and one P(2) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), one Cr(1), and one P(2) atom. In the third O site, O(1) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Cr(1), one Cr(2), and one P(1) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Cr(1), one Cr(2), and one P(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Cr(1), and one P(2) atom. In the sixth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(1) atom. In the seventh O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cr(2) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiCr2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.858
_cell_length_b   5.642
_cell_length_c   10.258
_cell_angle_alpha   87.673
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   627.921
_cell_formula_units_Z   4
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  0.875  0.880  0.904  1.0
  Li  Li1  1  0.625  0.880  0.404  1.0
  Li  Li2  1  0.375  0.120  0.596  1.0
  Li  Li3  1  0.125  0.120  0.096  1.0
  Cr  Cr4  1  0.099  0.869  0.733  1.0
  Cr  Cr5  1  0.401  0.869  0.233  1.0
  Cr  Cr6  1  0.628  0.661  0.983  1.0
  Cr  Cr7  1  0.872  0.661  0.483  1.0
  Cr  Cr8  1  0.128  0.339  0.517  1.0
  Cr  Cr9  1  0.372  0.339  0.017  1.0
  Cr  Cr10  1  0.599  0.131  0.767  1.0
  Cr  Cr11  1  0.901  0.131  0.267  1.0
  P  P12  1  0.360  0.882  0.912  1.0
  P  P13  1  0.140  0.882  0.412  1.0
  P  P14  1  0.607  0.638  0.661  1.0
  P  P15  1  0.893  0.638  0.161  1.0
  P  P16  1  0.107  0.362  0.839  1.0
  P  P17  1  0.393  0.362  0.339  1.0
  P  P18  1  0.860  0.118  0.588  1.0
  P  P19  1  0.640  0.118  0.088  1.0
  O  O20  1  0.192  0.940  0.549  1.0
  O  O21  1  0.936  0.892  0.633  1.0
  O  O22  1  0.308  0.940  0.049  1.0
  O  O23  1  0.564  0.892  0.133  1.0
  O  O24  1  0.528  0.875  0.648  1.0
  O  O25  1  0.263  0.836  0.809  1.0
  O  O26  1  0.972  0.875  0.148  1.0
  O  O27  1  0.237  0.836  0.309  1.0
  O  O28  1  0.446  0.665  0.927  1.0
  O  O29  1  0.054  0.665  0.427  1.0
  O  O30  1  0.680  0.645  0.792  1.0
  O  O31  1  0.820  0.645  0.292  1.0
  O  O32  1  0.695  0.641  0.542  1.0
  O  O33  1  0.027  0.592  0.837  1.0
  O  O34  1  0.805  0.641  0.042  1.0
  O  O35  1  0.473  0.592  0.337  1.0
  O  O36  1  0.527  0.408  0.663  1.0
  O  O37  1  0.195  0.359  0.958  1.0
  O  O38  1  0.973  0.408  0.163  1.0
  O  O39  1  0.305  0.359  0.458  1.0
  O  O40  1  0.180  0.355  0.708  1.0
  O  O41  1  0.320  0.355  0.208  1.0
  O  O42  1  0.946  0.335  0.573  1.0
  O  O43  1  0.554  0.335  0.073  1.0
  O  O44  1  0.763  0.164  0.691  1.0
  O  O45  1  0.028  0.125  0.852  1.0
  O  O46  1  0.737  0.164  0.191  1.0
  O  O47  1  0.472  0.125  0.352  1.0
  O  O48  1  0.436  0.108  0.867  1.0
  O  O49  1  0.692  0.060  0.951  1.0
  O  O50  1  0.064  0.108  0.367  1.0
  O  O51  1  0.808  0.060  0.451  1.0
[/CIF]
.
The crystal structure described by LiCr2(PO4)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(7), and one O(8) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(8) atom to form CrO5 trigonal bipyramids that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-83°. In the second Cr site, Cr(2) is bonded to one O(1), one O(2), one O(6), one O(7), and two equivalent O(5) atoms to form distorted CrO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent Cr(1)O5 trigonal bipyramids,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Cr(1)O5 trigonal bipyramids, and  an edgeedge with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-62°. In the second P site, P(2) is bonded to one O(3), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra and corners with two equivalent Cr(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 35-46°. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Cr(2), and one P(2) atom. In the second O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), one Cr(1), and one P(2) atom. In the third O site, O(1) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Cr(1), one Cr(2), and one P(1) atom. In the fourth O site, O(2) is bonded in a distorted trigonal planar geometry to one Cr(1), one Cr(2), and one P(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Cr(1), and one P(2) atom. In the sixth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(1) atom. In the seventh O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cr(2) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiCr2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.858
_cell_length_b   5.642
_cell_length_c   10.258
_cell_angle_alpha   87.673
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   627.921
_cell_formula_units_Z   4
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  0.875  0.880  0.904  1.0
  Li  Li1  1  0.625  0.880  0.404  1.0
  Li  Li2  1  0.375  0.120  0.596  1.0
  Li  Li3  1  0.125  0.120  0.096  1.0
  Cr  Cr4  1  0.099  0.869  0.733  1.0
  Cr  Cr5  1  0.401  0.869  0.233  1.0
  Cr  Cr6  1  0.628  0.661  0.983  1.0
  Cr  Cr7  1  0.872  0.661  0.483  1.0
  Cr  Cr8  1  0.128  0.339  0.517  1.0
  Cr  Cr9  1  0.372  0.339  0.017  1.0
  Cr  Cr10  1  0.599  0.131  0.767  1.0
  Cr  Cr11  1  0.901  0.131  0.267  1.0
  P  P12  1  0.360  0.882  0.912  1.0
  P  P13  1  0.140  0.882  0.412  1.0
  P  P14  1  0.607  0.638  0.661  1.0
  P  P15  1  0.893  0.638  0.161  1.0
  P  P16  1  0.107  0.362  0.839  1.0
  P  P17  1  0.393  0.362  0.339  1.0
  P  P18  1  0.860  0.118  0.588  1.0
  P  P19  1  0.640  0.118  0.088  1.0
  O  O20  1  0.192  0.940  0.549  1.0
  O  O21  1  0.936  0.892  0.633  1.0
  O  O22  1  0.308  0.940  0.049  1.0
  O  O23  1  0.564  0.892  0.133  1.0
  O  O24  1  0.528  0.875  0.648  1.0
  O  O25  1  0.263  0.836  0.809  1.0
  O  O26  1  0.972  0.875  0.148  1.0
  O  O27  1  0.237  0.836  0.309  1.0
  O  O28  1  0.446  0.665  0.927  1.0
  O  O29  1  0.054  0.665  0.427  1.0
  O  O30  1  0.680  0.645  0.792  1.0
  O  O31  1  0.820  0.645  0.292  1.0
  O  O32  1  0.695  0.641  0.542  1.0
  O  O33  1  0.027  0.592  0.837  1.0
  O  O34  1  0.805  0.641  0.042  1.0
  O  O35  1  0.473  0.592  0.337  1.0
  O  O36  1  0.527  0.408  0.663  1.0
  O  O37  1  0.195  0.359  0.958  1.0
  O  O38  1  0.973  0.408  0.163  1.0
  O  O39  1  0.305  0.359  0.458  1.0
  O  O40  1  0.180  0.355  0.708  1.0
  O  O41  1  0.320  0.355  0.208  1.0
  O  O42  1  0.946  0.335  0.573  1.0
  O  O43  1  0.554  0.335  0.073  1.0
  O  O44  1  0.763  0.164  0.691  1.0
  O  O45  1  0.028  0.125  0.852  1.0
  O  O46  1  0.737  0.164  0.191  1.0
  O  O47  1  0.472  0.125  0.352  1.0
  O  O48  1  0.436  0.108  0.867  1.0
  O  O49  1  0.692  0.060  0.951  1.0
  O  O50  1  0.064  0.108  0.367  1.0
  O  O51  1  0.808  0.060  0.451  1.0
[/CIF]
.