The crystal structure described by Li2Cr(CoO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(10), one O(12), one O(5), and one O(7) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-70°. In the second Li site, Li(2) is bonded to one O(11), one O(6), one O(8), and one O(9) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-70°. In the third Li site, Li(3) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(12), one O(5), and one O(7) atom. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(11), one O(6), one O(8), and one O(9) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CrO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the second Cr site, Cr(2) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Co(3)O6 octahedra, and edges with three equivalent Co(4)O6 octahedra. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Cr(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the second Co site, Co(2) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share edges with three equivalent Cr(1)O6 octahedra, edges with three equivalent Co(1)O6 octahedra,  an edgeedge with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the third Co site, Co(3) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share edges with three equivalent Cr(2)O6 octahedra, edges with three equivalent Co(4)O6 octahedra,  an edgeedge with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the fourth Co site, Co(4) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Cr(2)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Co(3), and one Co(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cr(2), one Co(3), and one Co(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cr(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded to one Li(1), one Li(3), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the sixth O site, O(6) is bonded to one Li(2), one Li(4), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the seventh O site, O(7) is bonded to one Li(1), one Li(3), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the eighth O site, O(8) is bonded to one Li(2), one Li(4), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the ninth O site, O(9) is bonded to one Li(2), one Li(4), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the tenth O site, O(10) is bonded to one Li(1), one Li(3), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the eleventh O site, O(11) is bonded to one Li(2), one Li(4), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(3), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Cr(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.221
_cell_length_b   10.167
_cell_length_c   5.132
_cell_angle_alpha   90.007
_cell_angle_beta   122.005
_cell_angle_gamma   89.960
_symmetry_Int_Tables_number   1
_cell_volume   230.993
_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  0.631  0.748  0.491  1.0
  Li  Li1  1  0.871  0.248  0.512  1.0
  Li  Li2  1  0.131  0.752  0.492  1.0
  Li  Li3  1  0.367  0.252  0.505  1.0
  Cr  Cr4  1  0.506  0.500  0.013  1.0
  Cr  Cr5  1  0.994  0.000  0.987  1.0
  Co  Co6  1  0.166  0.499  0.338  1.0
  Co  Co7  1  0.841  0.500  0.673  1.0
  Co  Co8  1  0.659  0.001  0.327  1.0
  Co  Co9  1  0.333  0.999  0.662  1.0
  O  O10  1  0.169  0.593  0.014  1.0
  O  O11  1  0.331  0.094  0.986  1.0
  O  O12  1  0.643  0.905  0.963  1.0
  O  O13  1  0.858  0.405  0.038  1.0
  O  O14  1  0.321  0.894  0.345  1.0
  O  O15  1  0.538  0.390  0.362  1.0
  O  O16  1  0.826  0.613  0.349  1.0
  O  O17  1  0.032  0.105  0.353  1.0
  O  O18  1  0.673  0.113  0.651  1.0
  O  O19  1  0.963  0.890  0.639  1.0
  O  O20  1  0.179  0.394  0.655  1.0
  O  O21  1  0.468  0.605  0.647  1.0
[/CIF]
.
The crystal structure described by Li2Cr(CoO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(10), one O(12), one O(5), and one O(7) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-70°. In the second Li site, Li(2) is bonded to one O(11), one O(6), one O(8), and one O(9) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 20-70°. In the third Li site, Li(3) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(12), one O(5), and one O(7) atom. In the fourth Li site, Li(4) is bonded in a distorted rectangular see-saw-like geometry to one O(11), one O(6), one O(8), and one O(9) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CrO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Co(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the second Cr site, Cr(2) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Co(3)O6 octahedra, and edges with three equivalent Co(4)O6 octahedra. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Cr(1)O6 octahedra, and edges with three equivalent Co(2)O6 octahedra. In the second Co site, Co(2) is bonded to one O(1), one O(11), one O(12), one O(4), one O(6), and one O(7) atom to form CoO6 octahedra that share edges with three equivalent Cr(1)O6 octahedra, edges with three equivalent Co(1)O6 octahedra,  an edgeedge with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the third Co site, Co(3) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share edges with three equivalent Cr(2)O6 octahedra, edges with three equivalent Co(4)O6 octahedra,  an edgeedge with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(2)O4 trigonal pyramid. In the fourth Co site, Co(4) is bonded to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Li(1)O4 trigonal pyramids, corners with two equivalent Li(2)O4 trigonal pyramids, edges with three equivalent Cr(2)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Co(3), and one Co(4) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Cr(2), one Co(3), and one Co(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cr(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded to one Li(1), one Li(3), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the sixth O site, O(6) is bonded to one Li(2), one Li(4), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the seventh O site, O(7) is bonded to one Li(1), one Li(3), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the eighth O site, O(8) is bonded to one Li(2), one Li(4), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the ninth O site, O(9) is bonded to one Li(2), one Li(4), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the tenth O site, O(10) is bonded to one Li(1), one Li(3), one Cr(2), one Co(3), and one Co(4) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. In the eleventh O site, O(11) is bonded to one Li(2), one Li(4), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 trigonal bipyramids. In the twelfth O site, O(12) is bonded to one Li(1), one Li(3), one Cr(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing OLi2CrCo2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Cr(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.221
_cell_length_b   10.167
_cell_length_c   5.132
_cell_angle_alpha   90.007
_cell_angle_beta   122.005
_cell_angle_gamma   89.960
_symmetry_Int_Tables_number   1
_cell_volume   230.993
_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  0.631  0.748  0.491  1.0
  Li  Li1  1  0.871  0.248  0.512  1.0
  Li  Li2  1  0.131  0.752  0.492  1.0
  Li  Li3  1  0.367  0.252  0.505  1.0
  Cr  Cr4  1  0.506  0.500  0.013  1.0
  Cr  Cr5  1  0.994  0.000  0.987  1.0
  Co  Co6  1  0.166  0.499  0.338  1.0
  Co  Co7  1  0.841  0.500  0.673  1.0
  Co  Co8  1  0.659  0.001  0.327  1.0
  Co  Co9  1  0.333  0.999  0.662  1.0
  O  O10  1  0.169  0.593  0.014  1.0
  O  O11  1  0.331  0.094  0.986  1.0
  O  O12  1  0.643  0.905  0.963  1.0
  O  O13  1  0.858  0.405  0.038  1.0
  O  O14  1  0.321  0.894  0.345  1.0
  O  O15  1  0.538  0.390  0.362  1.0
  O  O16  1  0.826  0.613  0.349  1.0
  O  O17  1  0.032  0.105  0.353  1.0
  O  O18  1  0.673  0.113  0.651  1.0
  O  O19  1  0.963  0.890  0.639  1.0
  O  O20  1  0.179  0.394  0.655  1.0
  O  O21  1  0.468  0.605  0.647  1.0
[/CIF]
.