The material structure described by Li3Co2(SiO4)2 is Clathrate-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Si(2)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(1)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form CoO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Co(2)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(2), and one Si(1) atom to form distorted corner-sharing OLi2CoSi tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Li(3), one Co(1), and one Si(1) atom to form corner-sharing OLi2CoSi tetrahedra. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Co(1), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi trigonal pyramids. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Co(2), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(3), one Co(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_Li3Co2(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.245
_cell_length_b   5.259
_cell_length_c   6.409
_cell_angle_alpha   90.005
_cell_angle_beta   90.587
_cell_angle_gamma   91.320
_symmetry_Int_Tables_number   1
_cell_volume   176.747
_cell_formula_units_Z   1
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  0.187  0.817  0.753  1.0
  Li  Li1  1  0.688  0.678  0.505  1.0
  Li  Li2  1  0.810  0.190  0.249  1.0
  Co  Co3  1  0.180  0.823  0.243  1.0
  Co  Co4  1  0.821  0.187  0.758  1.0
  Si  Si5  1  0.680  0.674  0.002  1.0
  Si  Si6  1  0.319  0.313  0.496  1.0
  O  O7  1  0.798  0.803  0.788  1.0
  O  O8  1  0.816  0.799  0.219  1.0
  O  O9  1  0.373  0.743  0.015  1.0
  O  O10  1  0.273  0.629  0.481  1.0
  O  O11  1  0.725  0.371  0.004  1.0
  O  O12  1  0.633  0.295  0.501  1.0
  O  O13  1  0.188  0.188  0.700  1.0
  O  O14  1  0.194  0.174  0.286  1.0
[/CIF]
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The material structure described by Li3Co2(SiO4)2 is Clathrate-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Si(2)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(1)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form CoO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Co(2)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(2), and one Si(1) atom to form distorted corner-sharing OLi2CoSi tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Li(3), one Co(1), and one Si(1) atom to form corner-sharing OLi2CoSi tetrahedra. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Co(1), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi trigonal pyramids. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Co(2), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(3), one Co(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_Li3Co2(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.245
_cell_length_b   5.259
_cell_length_c   6.409
_cell_angle_alpha   90.005
_cell_angle_beta   90.587
_cell_angle_gamma   91.320
_symmetry_Int_Tables_number   1
_cell_volume   176.747
_cell_formula_units_Z   1
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  0.187  0.817  0.753  1.0
  Li  Li1  1  0.688  0.678  0.505  1.0
  Li  Li2  1  0.810  0.190  0.249  1.0
  Co  Co3  1  0.180  0.823  0.243  1.0
  Co  Co4  1  0.821  0.187  0.758  1.0
  Si  Si5  1  0.680  0.674  0.002  1.0
  Si  Si6  1  0.319  0.313  0.496  1.0
  O  O7  1  0.798  0.803  0.788  1.0
  O  O8  1  0.816  0.799  0.219  1.0
  O  O9  1  0.373  0.743  0.015  1.0
  O  O10  1  0.273  0.629  0.481  1.0
  O  O11  1  0.725  0.371  0.004  1.0
  O  O12  1  0.633  0.295  0.501  1.0
  O  O13  1  0.188  0.188  0.700  1.0
  O  O14  1  0.194  0.174  0.286  1.0
[/CIF]
.