The structure described by Li2Co(CO3)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(1), one O(3), one O(5), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with three equivalent Co(2)O6 octahedra, and corners with two equivalent Li(3)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 40-75°. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(11), one O(2), one O(4), and one O(6) atom. In the third Li site, Li(3) is bonded to one O(12), one O(5), one O(8), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-79°. In the fourth Li site, Li(4) is bonded to one O(10), one O(11), one O(2), and one O(7) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-82°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(4) atom to form distorted CoO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  a cornercorner with one Li(4)O4 trigonal pyramid, and  an edgeedge with one Li(4)O4 trigonal pyramid. In the second Co site, Co(2) is bonded to one O(3), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  a cornercorner with one Li(4)O4 trigonal pyramid, and  an edgeedge with one Li(3)O4 trigonal pyramid. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(10), one O(7), and one O(8) atom. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(11), one O(12), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Co(1), and one C(1) atom. In the second O site, O(2) is bonded to one Li(2), one Li(4), one Co(1), and one C(1) atom to form a mixture of distorted edge and corner-sharing OLi2CoC trigonal pyramids. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Co(2), and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Li(3), one Co(2), and one C(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(2), one Co(2), and one C(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Li(4), one Co(2), and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Li(3), one Co(2), and one C(3) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one Co(2), and one C(4) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Li(4), one Co(1), and one C(3) atom. In the eleventh O site, O(11) is bonded to one Li(2), one Li(4), one Co(1), and one C(4) atom to form a mixture of distorted edge and corner-sharing OLi2CoC trigonal pyramids. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Li(3), one Co(1), and one C(4) atom. is represented by the CIF file [CIF]
data_Li2Co(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.183
_cell_length_b   6.584
_cell_length_c   7.824
_cell_angle_alpha   89.825
_cell_angle_beta   89.805
_cell_angle_gamma   112.952
_symmetry_Int_Tables_number   1
_cell_volume   245.865
_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
  C  C0  1  0.705  0.862  0.740  1.0
  C  C1  1  0.802  0.645  0.243  1.0
  C  C2  1  0.204  0.353  0.761  1.0
  C  C3  1  0.303  0.140  0.264  1.0
  Co  Co4  1  0.005  0.005  0.002  1.0
  Co  Co5  1  0.504  0.500  0.505  1.0
  Li  Li6  1  0.197  0.842  0.557  1.0
  Li  Li7  1  0.355  0.746  0.079  1.0
  Li  Li8  1  0.862  0.263  0.418  1.0
  Li  Li9  1  0.651  0.249  0.919  1.0
  O  O10  1  0.964  0.882  0.744  1.0
  O  O11  1  0.602  0.905  0.883  1.0
  O  O12  1  0.556  0.809  0.604  1.0
  O  O13  1  0.956  0.703  0.107  1.0
  O  O14  1  0.904  0.601  0.385  1.0
  O  O15  1  0.543  0.623  0.246  1.0
  O  O16  1  0.464  0.375  0.760  1.0
  O  O17  1  0.102  0.387  0.617  1.0
  O  O18  1  0.442  0.178  0.407  1.0
  O  O19  1  0.054  0.307  0.900  1.0
  O  O20  1  0.411  0.103  0.123  1.0
  O  O21  1  0.047  0.129  0.259  1.0
[/CIF]
.
The structure described by Li2Co(CO3)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(1), one O(3), one O(5), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with three equivalent Co(2)O6 octahedra, and corners with two equivalent Li(3)O4 trigonal pyramids. The corner-sharing octahedral tilt angles range from 40-75°. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(11), one O(2), one O(4), and one O(6) atom. In the third Li site, Li(3) is bonded to one O(12), one O(5), one O(8), and one O(9) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Li(1)O4 tetrahedra, and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-79°. In the fourth Li site, Li(4) is bonded to one O(10), one O(11), one O(2), and one O(7) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Co(1)O6 octahedra,  a cornercorner with one Co(2)O6 octahedra, and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-82°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(4) atom to form distorted CoO6 octahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  a cornercorner with one Li(4)O4 trigonal pyramid, and  an edgeedge with one Li(4)O4 trigonal pyramid. In the second Co site, Co(2) is bonded to one O(3), one O(5), one O(6), one O(7), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra,  a cornercorner with one Li(3)O4 trigonal pyramid,  a cornercorner with one Li(4)O4 trigonal pyramid, and  an edgeedge with one Li(3)O4 trigonal pyramid. There are four inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second C site, C(2) is bonded in a trigonal planar geometry to one O(4), one O(5), and one O(6) atom. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(10), one O(7), and one O(8) atom. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one O(11), one O(12), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Co(1), and one C(1) atom. In the second O site, O(2) is bonded to one Li(2), one Li(4), one Co(1), and one C(1) atom to form a mixture of distorted edge and corner-sharing OLi2CoC trigonal pyramids. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Co(2), and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal pyramidal geometry to one Li(1), one Li(3), one Co(2), and one C(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(2), one Co(2), and one C(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Li(4), one Co(2), and one C(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Li(3), one Co(2), and one C(3) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Li(1), one Li(3), one Co(2), and one C(4) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Li(4), one Co(1), and one C(3) atom. In the eleventh O site, O(11) is bonded to one Li(2), one Li(4), one Co(1), and one C(4) atom to form a mixture of distorted edge and corner-sharing OLi2CoC trigonal pyramids. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Li(3), one Co(1), and one C(4) atom. is represented by the CIF file [CIF]
data_Li2Co(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.183
_cell_length_b   6.584
_cell_length_c   7.824
_cell_angle_alpha   89.825
_cell_angle_beta   89.805
_cell_angle_gamma   112.952
_symmetry_Int_Tables_number   1
_cell_volume   245.865
_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
  C  C0  1  0.705  0.862  0.740  1.0
  C  C1  1  0.802  0.645  0.243  1.0
  C  C2  1  0.204  0.353  0.761  1.0
  C  C3  1  0.303  0.140  0.264  1.0
  Co  Co4  1  0.005  0.005  0.002  1.0
  Co  Co5  1  0.504  0.500  0.505  1.0
  Li  Li6  1  0.197  0.842  0.557  1.0
  Li  Li7  1  0.355  0.746  0.079  1.0
  Li  Li8  1  0.862  0.263  0.418  1.0
  Li  Li9  1  0.651  0.249  0.919  1.0
  O  O10  1  0.964  0.882  0.744  1.0
  O  O11  1  0.602  0.905  0.883  1.0
  O  O12  1  0.556  0.809  0.604  1.0
  O  O13  1  0.956  0.703  0.107  1.0
  O  O14  1  0.904  0.601  0.385  1.0
  O  O15  1  0.543  0.623  0.246  1.0
  O  O16  1  0.464  0.375  0.760  1.0
  O  O17  1  0.102  0.387  0.617  1.0
  O  O18  1  0.442  0.178  0.407  1.0
  O  O19  1  0.054  0.307  0.900  1.0
  O  O20  1  0.411  0.103  0.123  1.0
  O  O21  1  0.047  0.129  0.259  1.0
[/CIF]
.