The material 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(2), one O(3), one O(4), and one O(6) 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 Li(3)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(2), one O(5), one O(6), and one O(8) 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(2)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(3), one O(5), one O(6), and one O(7) 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 Li(1)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), 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 Co(2)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(7), and one O(8) 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 Co(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(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. 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(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. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Co(1), and one Si(1) atom to form OLi2CoSi tetrahedra that share corners with two equivalent O(6)Li3Si tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and  an edgeedge with one O(5)Li2CoSi trigonal pyramid. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(3), and one Si(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(2) atom. In the fifth O site, O(5) is bonded to one Li(2), one Li(3), one Co(2), and one Si(1) atom to form OLi2CoSi trigonal pyramids that share corners with two equivalent O(6)Li3Si tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and  an edgeedge with one O(2)Li2CoSi tetrahedra. In the sixth O site, O(6) is bonded to one Li(1), one Li(2), one Li(3), and one Si(2) atom to form distorted OLi3Si tetrahedra that share corners with two equivalent O(2)Li2CoSi tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and corners with two equivalent O(5)Li2CoSi trigonal pyramids. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded to one Li(2), one Co(1), one Co(2), and one Si(2) atom to form distorted OLiCo2Si tetrahedra that share corners with two equivalent O(2)Li2CoSi tetrahedra, corners with two equivalent O(6)Li3Si tetrahedra, and corners with two equivalent O(5)Li2CoSi trigonal pyramids. is represented by the CIF file [CIF]
data_Li3Co2(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.241
_cell_length_b   5.243
_cell_length_c   6.485
_cell_angle_alpha   90.643
_cell_angle_beta   90.662
_cell_angle_gamma   91.441
_symmetry_Int_Tables_number   1
_cell_volume   178.089
_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  0.819  0.181  0.495  1.0
  Li  Li1  1  0.323  0.312  0.733  1.0
  Li  Li2  1  0.169  0.828  0.493  1.0
  Co  Co3  1  0.810  0.193  0.005  1.0
  Co  Co4  1  0.200  0.809  0.006  1.0
  Si  Si5  1  0.693  0.686  0.744  1.0
  Si  Si6  1  0.329  0.321  0.257  1.0
  O  O7  1  0.836  0.816  0.955  1.0
  O  O8  1  0.709  0.371  0.756  1.0
  O  O9  1  0.809  0.817  0.546  1.0
  O  O10  1  0.634  0.280  0.248  1.0
  O  O11  1  0.374  0.731  0.766  1.0
  O  O12  1  0.202  0.207  0.463  1.0
  O  O13  1  0.260  0.630  0.238  1.0
  O  O14  1  0.200  0.184  0.038  1.0
[/CIF]
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The material 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(2), one O(3), one O(4), and one O(6) 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 Li(3)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(2), one O(5), one O(6), and one O(8) 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(2)O4 tetrahedra, and  an edgeedge with one Si(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(3), one O(5), one O(6), and one O(7) 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 Li(1)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), 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 Co(2)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(7), and one O(8) 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 Co(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(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. 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(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. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Si(1) atom. In the second O site, O(2) is bonded to one Li(1), one Li(2), one Co(1), and one Si(1) atom to form OLi2CoSi tetrahedra that share corners with two equivalent O(6)Li3Si tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and  an edgeedge with one O(5)Li2CoSi trigonal pyramid. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one Li(3), and one Si(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(2) atom. In the fifth O site, O(5) is bonded to one Li(2), one Li(3), one Co(2), and one Si(1) atom to form OLi2CoSi trigonal pyramids that share corners with two equivalent O(6)Li3Si tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and  an edgeedge with one O(2)Li2CoSi tetrahedra. In the sixth O site, O(6) is bonded to one Li(1), one Li(2), one Li(3), and one Si(2) atom to form distorted OLi3Si tetrahedra that share corners with two equivalent O(2)Li2CoSi tetrahedra, corners with two equivalent O(8)LiCo2Si tetrahedra, and corners with two equivalent O(5)Li2CoSi trigonal pyramids. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded to one Li(2), one Co(1), one Co(2), and one Si(2) atom to form distorted OLiCo2Si tetrahedra that share corners with two equivalent O(2)Li2CoSi tetrahedra, corners with two equivalent O(6)Li3Si tetrahedra, and corners with two equivalent O(5)Li2CoSi trigonal pyramids. is represented by the CIF file [CIF]
data_Li3Co2(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.241
_cell_length_b   5.243
_cell_length_c   6.485
_cell_angle_alpha   90.643
_cell_angle_beta   90.662
_cell_angle_gamma   91.441
_symmetry_Int_Tables_number   1
_cell_volume   178.089
_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  0.819  0.181  0.495  1.0
  Li  Li1  1  0.323  0.312  0.733  1.0
  Li  Li2  1  0.169  0.828  0.493  1.0
  Co  Co3  1  0.810  0.193  0.005  1.0
  Co  Co4  1  0.200  0.809  0.006  1.0
  Si  Si5  1  0.693  0.686  0.744  1.0
  Si  Si6  1  0.329  0.321  0.257  1.0
  O  O7  1  0.836  0.816  0.955  1.0
  O  O8  1  0.709  0.371  0.756  1.0
  O  O9  1  0.809  0.817  0.546  1.0
  O  O10  1  0.634  0.280  0.248  1.0
  O  O11  1  0.374  0.731  0.766  1.0
  O  O12  1  0.202  0.207  0.463  1.0
  O  O13  1  0.260  0.630  0.238  1.0
  O  O14  1  0.200  0.184  0.038  1.0
[/CIF]
.