The compound described by Li2Co3(SeO3)4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), and two equivalent O(4) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form distorted edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing CoO6 octahedra. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(2), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Co(1), one Co(2), and one Se(2) atom to form distorted OLiCo2Se tetrahedra that share  a cornercorner with one O(1)LiCo2Se tetrahedra and corners with four equivalent O(4)Li2CoSe trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Se(2) atom. In the fourth O site, O(4) is bonded to two equivalent Li(1), one Co(1), and one Se(2) atom to form distorted OLi2CoSe trigonal pyramids that share corners with four equivalent O(1)LiCo2Se tetrahedra and  an edgeedge with one O(4)Li2CoSe trigonal pyramid. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Co(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Co3(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.346
_cell_length_b   7.867
_cell_length_c   8.281
_cell_angle_alpha   64.540
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   549.773
_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  0.639  0.075  0.099  1.0
  Li  Li1  1  0.361  0.925  0.901  1.0
  Li  Li2  1  0.861  0.575  0.099  1.0
  Li  Li3  1  0.139  0.425  0.901  1.0
  Co  Co4  1  0.994  0.171  0.297  1.0
  Co  Co5  1  0.006  0.829  0.703  1.0
  Co  Co6  1  0.494  0.329  0.703  1.0
  Co  Co7  1  0.000  0.000  0.000  1.0
  Co  Co8  1  0.500  0.500  0.000  1.0
  Co  Co9  1  0.506  0.671  0.297  1.0
  Se  Se10  1  0.827  0.736  0.401  1.0
  Se  Se11  1  0.684  0.875  0.824  1.0
  Se  Se12  1  0.184  0.625  0.176  1.0
  Se  Se13  1  0.316  0.125  0.176  1.0
  Se  Se14  1  0.673  0.236  0.401  1.0
  Se  Se15  1  0.327  0.764  0.599  1.0
  Se  Se16  1  0.173  0.264  0.599  1.0
  Se  Se17  1  0.816  0.375  0.824  1.0
  O  O18  1  0.153  0.815  0.968  1.0
  O  O19  1  0.582  0.263  0.211  1.0
  O  O20  1  0.918  0.763  0.211  1.0
  O  O21  1  0.868  0.921  0.835  1.0
  O  O22  1  0.896  0.553  0.858  1.0
  O  O23  1  0.662  0.837  0.322  1.0
  O  O24  1  0.368  0.579  0.165  1.0
  O  O25  1  0.338  0.163  0.678  1.0
  O  O26  1  0.082  0.237  0.789  1.0
  O  O27  1  0.162  0.663  0.678  1.0
  O  O28  1  0.396  0.947  0.142  1.0
  O  O29  1  0.901  0.909  0.456  1.0
  O  O30  1  0.104  0.447  0.142  1.0
  O  O31  1  0.599  0.409  0.456  1.0
  O  O32  1  0.632  0.421  0.835  1.0
  O  O33  1  0.418  0.737  0.789  1.0
  O  O34  1  0.347  0.315  0.968  1.0
  O  O35  1  0.132  0.079  0.165  1.0
  O  O36  1  0.847  0.185  0.032  1.0
  O  O37  1  0.401  0.591  0.544  1.0
  O  O38  1  0.604  0.053  0.858  1.0
  O  O39  1  0.838  0.337  0.322  1.0
  O  O40  1  0.653  0.685  0.032  1.0
  O  O41  1  0.099  0.091  0.544  1.0
[/CIF]
.
The compound described by Li2Co3(SeO3)4 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), and two equivalent O(4) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form distorted edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing CoO6 octahedra. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(2), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Co(1), one Co(2), and one Se(2) atom to form distorted OLiCo2Se tetrahedra that share  a cornercorner with one O(1)LiCo2Se tetrahedra and corners with four equivalent O(4)Li2CoSe trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Se(2) atom. In the fourth O site, O(4) is bonded to two equivalent Li(1), one Co(1), and one Se(2) atom to form distorted OLi2CoSe trigonal pyramids that share corners with four equivalent O(1)LiCo2Se tetrahedra and  an edgeedge with one O(4)Li2CoSe trigonal pyramid. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Co(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2Co3(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.346
_cell_length_b   7.867
_cell_length_c   8.281
_cell_angle_alpha   64.540
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   549.773
_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  0.639  0.075  0.099  1.0
  Li  Li1  1  0.361  0.925  0.901  1.0
  Li  Li2  1  0.861  0.575  0.099  1.0
  Li  Li3  1  0.139  0.425  0.901  1.0
  Co  Co4  1  0.994  0.171  0.297  1.0
  Co  Co5  1  0.006  0.829  0.703  1.0
  Co  Co6  1  0.494  0.329  0.703  1.0
  Co  Co7  1  0.000  0.000  0.000  1.0
  Co  Co8  1  0.500  0.500  0.000  1.0
  Co  Co9  1  0.506  0.671  0.297  1.0
  Se  Se10  1  0.827  0.736  0.401  1.0
  Se  Se11  1  0.684  0.875  0.824  1.0
  Se  Se12  1  0.184  0.625  0.176  1.0
  Se  Se13  1  0.316  0.125  0.176  1.0
  Se  Se14  1  0.673  0.236  0.401  1.0
  Se  Se15  1  0.327  0.764  0.599  1.0
  Se  Se16  1  0.173  0.264  0.599  1.0
  Se  Se17  1  0.816  0.375  0.824  1.0
  O  O18  1  0.153  0.815  0.968  1.0
  O  O19  1  0.582  0.263  0.211  1.0
  O  O20  1  0.918  0.763  0.211  1.0
  O  O21  1  0.868  0.921  0.835  1.0
  O  O22  1  0.896  0.553  0.858  1.0
  O  O23  1  0.662  0.837  0.322  1.0
  O  O24  1  0.368  0.579  0.165  1.0
  O  O25  1  0.338  0.163  0.678  1.0
  O  O26  1  0.082  0.237  0.789  1.0
  O  O27  1  0.162  0.663  0.678  1.0
  O  O28  1  0.396  0.947  0.142  1.0
  O  O29  1  0.901  0.909  0.456  1.0
  O  O30  1  0.104  0.447  0.142  1.0
  O  O31  1  0.599  0.409  0.456  1.0
  O  O32  1  0.632  0.421  0.835  1.0
  O  O33  1  0.418  0.737  0.789  1.0
  O  O34  1  0.347  0.315  0.968  1.0
  O  O35  1  0.132  0.079  0.165  1.0
  O  O36  1  0.847  0.185  0.032  1.0
  O  O37  1  0.401  0.591  0.544  1.0
  O  O38  1  0.604  0.053  0.858  1.0
  O  O39  1  0.838  0.337  0.322  1.0
  O  O40  1  0.653  0.685  0.032  1.0
  O  O41  1  0.099  0.091  0.544  1.0
[/CIF]
.