The structure described by LiCr2(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a distorted trigonal planar geometry to one O(6), 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(2), one O(3), one O(4), one O(6), and one O(7) atom to form CrO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra,  a cornercorner with one Cr(2)O5 trigonal bipyramid, and  an edgeedge with one P(2)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to one O(1), one O(4), one O(8), and two equivalent O(5) atoms to form distorted CrO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra,  a cornercorner with one Cr(1)O5 trigonal bipyramid, and  an edgeedge with one Cr(2)O5 trigonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Cr(1)O5 trigonal bipyramids and corners with four equivalent Cr(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(1)O5 trigonal bipyramid,  a cornercorner with one Cr(2)O5 trigonal bipyramid, and  an edgeedge with one Cr(1)O5 trigonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Cr(1) and one P(2) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Cr(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Cr(1), one Cr(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Cr(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Cr(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), 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   6.244
_cell_length_b   6.364
_cell_length_c   9.536
_cell_angle_alpha   85.226
_cell_angle_beta   73.543
_cell_angle_gamma   80.717
_symmetry_Int_Tables_number   1
_cell_volume   358.398
_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  0.328  0.574  0.672  1.0
  Li  Li1  1  0.672  0.426  0.328  1.0
  Cr  Cr2  1  0.067  0.017  0.715  1.0
  Cr  Cr3  1  0.665  0.808  0.047  1.0
  Cr  Cr4  1  0.335  0.192  0.953  1.0
  Cr  Cr5  1  0.933  0.983  0.285  1.0
  P  P6  1  0.190  0.721  0.987  1.0
  P  P7  1  0.274  0.825  0.386  1.0
  P  P8  1  0.726  0.175  0.614  1.0
  P  P9  1  0.810  0.279  0.013  1.0
  O  O10  1  0.261  0.491  0.022  1.0
  O  O11  1  0.066  0.722  0.379  1.0
  O  O12  1  0.221  0.047  0.306  1.0
  O  O13  1  0.035  0.188  0.898  1.0
  O  O14  1  0.368  0.864  0.992  1.0
  O  O15  1  0.270  0.846  0.549  1.0
  O  O16  1  0.152  0.752  0.832  1.0
  O  O17  1  0.508  0.706  0.310  1.0
  O  O18  1  0.492  0.294  0.690  1.0
  O  O19  1  0.848  0.248  0.168  1.0
  O  O20  1  0.730  0.154  0.451  1.0
  O  O21  1  0.632  0.136  0.008  1.0
  O  O22  1  0.965  0.812  0.102  1.0
  O  O23  1  0.779  0.953  0.694  1.0
  O  O24  1  0.934  0.278  0.621  1.0
  O  O25  1  0.739  0.509  0.978  1.0
[/CIF]
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The structure described by LiCr2(PO4)2 crystallizes in the triclinic P-1 space group. Li(1) is bonded in a distorted trigonal planar geometry to one O(6), 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(2), one O(3), one O(4), one O(6), and one O(7) atom to form CrO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra,  a cornercorner with one Cr(2)O5 trigonal bipyramid, and  an edgeedge with one P(2)O4 tetrahedra. In the second Cr site, Cr(2) is bonded to one O(1), one O(4), one O(8), and two equivalent O(5) atoms to form distorted CrO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with four equivalent P(1)O4 tetrahedra,  a cornercorner with one Cr(1)O5 trigonal bipyramid, and  an edgeedge with one Cr(2)O5 trigonal bipyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Cr(1)O5 trigonal bipyramids and corners with four equivalent Cr(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(2), one O(3), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(1)O5 trigonal bipyramid,  a cornercorner with one Cr(2)O5 trigonal bipyramid, and  an edgeedge with one Cr(1)O5 trigonal bipyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Cr(1) and one P(2) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Cr(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Cr(1), one Cr(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(1), one Cr(1), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Cr(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Li(1), 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   6.244
_cell_length_b   6.364
_cell_length_c   9.536
_cell_angle_alpha   85.226
_cell_angle_beta   73.543
_cell_angle_gamma   80.717
_symmetry_Int_Tables_number   1
_cell_volume   358.398
_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  0.328  0.574  0.672  1.0
  Li  Li1  1  0.672  0.426  0.328  1.0
  Cr  Cr2  1  0.067  0.017  0.715  1.0
  Cr  Cr3  1  0.665  0.808  0.047  1.0
  Cr  Cr4  1  0.335  0.192  0.953  1.0
  Cr  Cr5  1  0.933  0.983  0.285  1.0
  P  P6  1  0.190  0.721  0.987  1.0
  P  P7  1  0.274  0.825  0.386  1.0
  P  P8  1  0.726  0.175  0.614  1.0
  P  P9  1  0.810  0.279  0.013  1.0
  O  O10  1  0.261  0.491  0.022  1.0
  O  O11  1  0.066  0.722  0.379  1.0
  O  O12  1  0.221  0.047  0.306  1.0
  O  O13  1  0.035  0.188  0.898  1.0
  O  O14  1  0.368  0.864  0.992  1.0
  O  O15  1  0.270  0.846  0.549  1.0
  O  O16  1  0.152  0.752  0.832  1.0
  O  O17  1  0.508  0.706  0.310  1.0
  O  O18  1  0.492  0.294  0.690  1.0
  O  O19  1  0.848  0.248  0.168  1.0
  O  O20  1  0.730  0.154  0.451  1.0
  O  O21  1  0.632  0.136  0.008  1.0
  O  O22  1  0.965  0.812  0.102  1.0
  O  O23  1  0.779  0.953  0.694  1.0
  O  O24  1  0.934  0.278  0.621  1.0
  O  O25  1  0.739  0.509  0.978  1.0
[/CIF]
.