The structure described by Li2Co(SiO3)2 crystallizes in the monoclinic C2/c space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. Co(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form CoO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra and corners with two equivalent Si(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Li(1) and two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(1) atoms. In the third O site, O(3) is bonded to two equivalent Li(1), one Co(1), and one Si(1) atom to form a mixture of distorted corner and edge-sharing OLi2CoSi trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Li(1), one Co(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_Li2Co(SiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.639
_cell_length_b   5.639
_cell_length_c   9.354
_cell_angle_alpha   90.237
_cell_angle_beta   89.763
_cell_angle_gamma   62.244
_symmetry_Int_Tables_number   1
_cell_volume   263.202
_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  0.605  0.730  0.883  1.0
  Li  Li1  1  0.270  0.395  0.383  1.0
  Li  Li2  1  0.730  0.605  0.617  1.0
  Li  Li3  1  0.395  0.270  0.117  1.0
  Co  Co4  1  0.749  0.749  0.250  1.0
  Co  Co5  1  0.251  0.251  0.750  1.0
  Si  Si6  1  0.139  0.801  0.635  1.0
  Si  Si7  1  0.199  0.861  0.135  1.0
  Si  Si8  1  0.801  0.139  0.865  1.0
  Si  Si9  1  0.861  0.199  0.365  1.0
  O  O10  1  0.884  0.884  0.750  1.0
  O  O11  1  0.116  0.116  0.250  1.0
  O  O12  1  0.000  1.000  0.500  1.0
  O  O13  1  1.000  1.000  1.000  1.0
  O  O14  1  0.373  0.860  0.703  1.0
  O  O15  1  0.140  0.627  0.203  1.0
  O  O16  1  0.860  0.373  0.797  1.0
  O  O17  1  0.627  0.140  0.297  1.0
  O  O18  1  0.235  0.490  0.590  1.0
  O  O19  1  0.510  0.765  0.090  1.0
  O  O20  1  0.490  0.235  0.910  1.0
  O  O21  1  0.765  0.510  0.410  1.0
[/CIF]
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The structure described by Li2Co(SiO3)2 crystallizes in the monoclinic C2/c space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. Co(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form CoO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with two equivalent Co(1)O4 tetrahedra and corners with two equivalent Si(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Li(1) and two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(1) atoms. In the third O site, O(3) is bonded to two equivalent Li(1), one Co(1), and one Si(1) atom to form a mixture of distorted corner and edge-sharing OLi2CoSi trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Li(1), one Co(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_Li2Co(SiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.639
_cell_length_b   5.639
_cell_length_c   9.354
_cell_angle_alpha   90.237
_cell_angle_beta   89.763
_cell_angle_gamma   62.244
_symmetry_Int_Tables_number   1
_cell_volume   263.202
_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  0.605  0.730  0.883  1.0
  Li  Li1  1  0.270  0.395  0.383  1.0
  Li  Li2  1  0.730  0.605  0.617  1.0
  Li  Li3  1  0.395  0.270  0.117  1.0
  Co  Co4  1  0.749  0.749  0.250  1.0
  Co  Co5  1  0.251  0.251  0.750  1.0
  Si  Si6  1  0.139  0.801  0.635  1.0
  Si  Si7  1  0.199  0.861  0.135  1.0
  Si  Si8  1  0.801  0.139  0.865  1.0
  Si  Si9  1  0.861  0.199  0.365  1.0
  O  O10  1  0.884  0.884  0.750  1.0
  O  O11  1  0.116  0.116  0.250  1.0
  O  O12  1  0.000  1.000  0.500  1.0
  O  O13  1  1.000  1.000  1.000  1.0
  O  O14  1  0.373  0.860  0.703  1.0
  O  O15  1  0.140  0.627  0.203  1.0
  O  O16  1  0.860  0.373  0.797  1.0
  O  O17  1  0.627  0.140  0.297  1.0
  O  O18  1  0.235  0.490  0.590  1.0
  O  O19  1  0.510  0.765  0.090  1.0
  O  O20  1  0.490  0.235  0.910  1.0
  O  O21  1  0.765  0.510  0.410  1.0
[/CIF]
.