The structure described by LiCrP2O7 crystallizes in the monoclinic C2/c space group. Li(1) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. Cr(1) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), one O(5), and one O(7) atom. 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(5) atom to form PO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with two equivalent Li(1)O4 trigonal pyramids. In the second P site, P(2) is bonded to one O(2), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with two equivalent Li(1)O4 trigonal pyramids. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Cr(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Li(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(1), one Cr(1), and one P(2) atom. is represented by the CIF card [CIF]
data_LiCrP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.842
_cell_length_b   7.842
_cell_length_c   10.590
_cell_angle_alpha   89.558
_cell_angle_beta   89.558
_cell_angle_gamma   116.143
_symmetry_Int_Tables_number   1
_cell_volume   584.570
_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  0.287  0.718  0.499  1.0
  Li  Li1  1  0.713  0.282  0.501  1.0
  Li  Li2  1  0.282  0.713  0.001  1.0
  Li  Li3  1  0.718  0.287  0.999  1.0
  Cr  Cr4  1  0.310  0.308  0.111  1.0
  Cr  Cr5  1  0.308  0.310  0.611  1.0
  Cr  Cr6  1  0.692  0.690  0.389  1.0
  Cr  Cr7  1  0.690  0.692  0.889  1.0
  P  P8  1  0.288  0.083  0.370  1.0
  P  P9  1  0.917  0.712  0.130  1.0
  P  P10  1  0.317  0.093  0.867  1.0
  P  P11  1  0.683  0.907  0.133  1.0
  P  P12  1  0.083  0.288  0.870  1.0
  P  P13  1  0.093  0.317  0.367  1.0
  P  P14  1  0.712  0.917  0.630  1.0
  P  P15  1  0.907  0.683  0.633  1.0
  O  O16  1  0.119  0.754  0.119  1.0
  O  O17  1  0.881  0.246  0.881  1.0
  O  O18  1  0.910  0.894  0.619  1.0
  O  O19  1  0.792  0.586  0.019  1.0
  O  O20  1  0.197  0.399  0.240  1.0
  O  O21  1  0.620  0.815  0.757  1.0
  O  O22  1  0.208  0.414  0.981  1.0
  O  O23  1  0.601  0.803  0.260  1.0
  O  O24  1  0.803  0.601  0.760  1.0
  O  O25  1  0.102  0.701  0.623  1.0
  O  O26  1  0.299  0.898  0.877  1.0
  O  O27  1  0.106  0.090  0.881  1.0
  O  O28  1  0.894  0.910  0.119  1.0
  O  O29  1  0.380  0.185  0.243  1.0
  O  O30  1  0.771  0.567  0.523  1.0
  O  O31  1  0.567  0.771  0.023  1.0
  O  O32  1  0.185  0.380  0.743  1.0
  O  O33  1  0.399  0.197  0.740  1.0
  O  O34  1  0.433  0.229  0.977  1.0
  O  O35  1  0.754  0.119  0.619  1.0
  O  O36  1  0.229  0.433  0.477  1.0
  O  O37  1  0.586  0.792  0.519  1.0
  O  O38  1  0.090  0.106  0.381  1.0
  O  O39  1  0.414  0.208  0.481  1.0
  O  O40  1  0.246  0.881  0.381  1.0
  O  O41  1  0.701  0.102  0.123  1.0
  O  O42  1  0.815  0.620  0.257  1.0
  O  O43  1  0.898  0.299  0.377  1.0
[/CIF]
.
The structure described by LiCrP2O7 crystallizes in the monoclinic C2/c space group. Li(1) is bonded to one O(1), one O(3), one O(6), and one O(7) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. Cr(1) is bonded in a rectangular see-saw-like geometry to one O(3), one O(4), one O(5), and one O(7) atom. 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(5) atom to form PO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with two equivalent Li(1)O4 trigonal pyramids. In the second P site, P(2) is bonded to one O(2), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra and corners with two equivalent Li(1)O4 trigonal pyramids. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Li(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Cr(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Li(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(1), one Cr(1), and one P(2) atom. is represented by the CIF card [CIF]
data_LiCrP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.842
_cell_length_b   7.842
_cell_length_c   10.590
_cell_angle_alpha   89.558
_cell_angle_beta   89.558
_cell_angle_gamma   116.143
_symmetry_Int_Tables_number   1
_cell_volume   584.570
_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  0.287  0.718  0.499  1.0
  Li  Li1  1  0.713  0.282  0.501  1.0
  Li  Li2  1  0.282  0.713  0.001  1.0
  Li  Li3  1  0.718  0.287  0.999  1.0
  Cr  Cr4  1  0.310  0.308  0.111  1.0
  Cr  Cr5  1  0.308  0.310  0.611  1.0
  Cr  Cr6  1  0.692  0.690  0.389  1.0
  Cr  Cr7  1  0.690  0.692  0.889  1.0
  P  P8  1  0.288  0.083  0.370  1.0
  P  P9  1  0.917  0.712  0.130  1.0
  P  P10  1  0.317  0.093  0.867  1.0
  P  P11  1  0.683  0.907  0.133  1.0
  P  P12  1  0.083  0.288  0.870  1.0
  P  P13  1  0.093  0.317  0.367  1.0
  P  P14  1  0.712  0.917  0.630  1.0
  P  P15  1  0.907  0.683  0.633  1.0
  O  O16  1  0.119  0.754  0.119  1.0
  O  O17  1  0.881  0.246  0.881  1.0
  O  O18  1  0.910  0.894  0.619  1.0
  O  O19  1  0.792  0.586  0.019  1.0
  O  O20  1  0.197  0.399  0.240  1.0
  O  O21  1  0.620  0.815  0.757  1.0
  O  O22  1  0.208  0.414  0.981  1.0
  O  O23  1  0.601  0.803  0.260  1.0
  O  O24  1  0.803  0.601  0.760  1.0
  O  O25  1  0.102  0.701  0.623  1.0
  O  O26  1  0.299  0.898  0.877  1.0
  O  O27  1  0.106  0.090  0.881  1.0
  O  O28  1  0.894  0.910  0.119  1.0
  O  O29  1  0.380  0.185  0.243  1.0
  O  O30  1  0.771  0.567  0.523  1.0
  O  O31  1  0.567  0.771  0.023  1.0
  O  O32  1  0.185  0.380  0.743  1.0
  O  O33  1  0.399  0.197  0.740  1.0
  O  O34  1  0.433  0.229  0.977  1.0
  O  O35  1  0.754  0.119  0.619  1.0
  O  O36  1  0.229  0.433  0.477  1.0
  O  O37  1  0.586  0.792  0.519  1.0
  O  O38  1  0.090  0.106  0.381  1.0
  O  O39  1  0.414  0.208  0.481  1.0
  O  O40  1  0.246  0.881  0.381  1.0
  O  O41  1  0.701  0.102  0.123  1.0
  O  O42  1  0.815  0.620  0.257  1.0
  O  O43  1  0.898  0.299  0.377  1.0
[/CIF]
.