The material structure described by LiCr2(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(4), one O(6), and two equivalent O(5) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(6), and two equivalent O(1) atoms. In the second Cr site, Cr(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CrO6 pentagonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(2)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(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 pentagonal pyramids. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 pentagonal pyramids and  an edgeedge with one Cr(2)O6 pentagonal pyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to two equivalent Cr(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cr(1), one Cr(2), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Cr(1), one Cr(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 Cr(1), and one P(1) atom. In the fifth O site, O(5) is bonded to two equivalent Li(1), one Cr(2), and one P(2) atom to form distorted OLi2CrP trigonal pyramids that share corners with two equivalent O(6)LiCr2P tetrahedra,  an edgeedge with one O(6)LiCr2P tetrahedra, and  an edgeedge with one O(5)Li2CrP trigonal pyramid. In the sixth O site, O(6) is bonded to one Li(1), one Cr(1), one Cr(2), and one P(2) atom to form a mixture of distorted corner and edge-sharing OLiCr2P tetrahedra. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Cr(2) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(2) atom. is represented by the CIF file [CIF]
data_LiCr2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.534
_cell_length_b   6.409
_cell_length_c   9.339
_cell_angle_alpha   73.564
_cell_angle_beta   82.828
_cell_angle_gamma   78.276
_symmetry_Int_Tables_number   1
_cell_volume   310.280
_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  0.817  0.118  0.617  1.0
  Li  Li1  1  0.183  0.882  0.383  1.0
  Cr  Cr2  1  0.685  0.336  0.917  1.0
  Cr  Cr3  1  0.132  0.551  0.712  1.0
  Cr  Cr4  1  0.868  0.449  0.288  1.0
  Cr  Cr5  1  0.315  0.664  0.083  1.0
  P  P6  1  0.805  0.790  0.950  1.0
  P  P7  1  0.685  0.661  0.576  1.0
  P  P8  1  0.315  0.339  0.424  1.0
  P  P9  1  0.195  0.210  0.050  1.0
  O  O10  1  0.609  0.665  0.921  1.0
  O  O11  1  0.059  0.706  0.874  1.0
  O  O12  1  0.172  0.264  0.879  1.0
  O  O13  1  0.728  0.037  0.877  1.0
  O  O14  1  0.879  0.810  0.579  1.0
  O  O15  1  0.810  0.437  0.688  1.0
  O  O16  1  0.417  0.739  0.631  1.0
  O  O17  1  0.311  0.366  0.581  1.0
  O  O18  1  0.689  0.634  0.419  1.0
  O  O19  1  0.583  0.261  0.369  1.0
  O  O20  1  0.190  0.563  0.312  1.0
  O  O21  1  0.121  0.190  0.421  1.0
  O  O22  1  0.272  0.963  0.123  1.0
  O  O23  1  0.828  0.736  0.121  1.0
  O  O24  1  0.941  0.294  0.126  1.0
  O  O25  1  0.391  0.335  0.079  1.0
[/CIF]
.
The material structure described by LiCr2(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(4), one O(6), and two equivalent O(5) atoms. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(6), and two equivalent O(1) atoms. In the second Cr site, Cr(2) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CrO6 pentagonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one P(2)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(3), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 pentagonal pyramids. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Cr(2)O6 pentagonal pyramids and  an edgeedge with one Cr(2)O6 pentagonal pyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to two equivalent Cr(1) and one P(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cr(1), one Cr(2), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Cr(1), one Cr(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 Cr(1), and one P(1) atom. In the fifth O site, O(5) is bonded to two equivalent Li(1), one Cr(2), and one P(2) atom to form distorted OLi2CrP trigonal pyramids that share corners with two equivalent O(6)LiCr2P tetrahedra,  an edgeedge with one O(6)LiCr2P tetrahedra, and  an edgeedge with one O(5)Li2CrP trigonal pyramid. In the sixth O site, O(6) is bonded to one Li(1), one Cr(1), one Cr(2), and one P(2) atom to form a mixture of distorted corner and edge-sharing OLiCr2P tetrahedra. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Cr(2) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(2) atom. is represented by the CIF file [CIF]
data_LiCr2(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.534
_cell_length_b   6.409
_cell_length_c   9.339
_cell_angle_alpha   73.564
_cell_angle_beta   82.828
_cell_angle_gamma   78.276
_symmetry_Int_Tables_number   1
_cell_volume   310.280
_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  0.817  0.118  0.617  1.0
  Li  Li1  1  0.183  0.882  0.383  1.0
  Cr  Cr2  1  0.685  0.336  0.917  1.0
  Cr  Cr3  1  0.132  0.551  0.712  1.0
  Cr  Cr4  1  0.868  0.449  0.288  1.0
  Cr  Cr5  1  0.315  0.664  0.083  1.0
  P  P6  1  0.805  0.790  0.950  1.0
  P  P7  1  0.685  0.661  0.576  1.0
  P  P8  1  0.315  0.339  0.424  1.0
  P  P9  1  0.195  0.210  0.050  1.0
  O  O10  1  0.609  0.665  0.921  1.0
  O  O11  1  0.059  0.706  0.874  1.0
  O  O12  1  0.172  0.264  0.879  1.0
  O  O13  1  0.728  0.037  0.877  1.0
  O  O14  1  0.879  0.810  0.579  1.0
  O  O15  1  0.810  0.437  0.688  1.0
  O  O16  1  0.417  0.739  0.631  1.0
  O  O17  1  0.311  0.366  0.581  1.0
  O  O18  1  0.689  0.634  0.419  1.0
  O  O19  1  0.583  0.261  0.369  1.0
  O  O20  1  0.190  0.563  0.312  1.0
  O  O21  1  0.121  0.190  0.421  1.0
  O  O22  1  0.272  0.963  0.123  1.0
  O  O23  1  0.828  0.736  0.121  1.0
  O  O24  1  0.941  0.294  0.126  1.0
  O  O25  1  0.391  0.335  0.079  1.0
[/CIF]
.