The crystal structure described by LiCo3(SiO4)2 crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(17), one O(2), one O(7), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(10), one O(18), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Co(5)O4 tetrahedra, corners with two equivalent Co(9)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(13), one O(15), one O(21), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. There are nine inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(15), one O(5), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Si(5)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(11), one O(14), one O(23), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Co(6)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. In the third Co site, Co(3) is bonded to one O(12), one O(13), one O(14), and one O(22) atom to form CoO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with two equivalent Co(7)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. In the fourth Co site, Co(4) is bonded to one O(16), one O(17), one O(19), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and corners with two equivalent Si(2)O4 tetrahedra. In the fifth Co site, Co(5) is bonded to one O(16), one O(18), one O(24), and one O(6) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. In the sixth Co site, Co(6) is bonded to one O(11), one O(20), one O(23), and one O(24) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. In the seventh Co site, Co(7) is bonded to one O(12), one O(19), one O(20), and one O(22) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. In the eighth Co site, Co(8) is bonded to one O(2), one O(21), one O(3), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, and corners with two equivalent Si(4)O4 tetrahedra. In the ninth Co site, Co(9) is bonded to one O(1), one O(10), one O(3), and one O(4) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, corners with two equivalent Si(4)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(12), one O(18), one O(19), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra, corners with two equivalent Co(7)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. In the second Si site, Si(2) is bonded to one O(16), one O(20), one O(6), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra, corners with two equivalent Co(4)O4 tetrahedra, corners with two equivalent Co(5)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. In the third Si site, Si(3) is bonded to one O(11), one O(13), one O(24), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Co(6)O4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(10), one O(3), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(8)O4 tetrahedra, corners with two equivalent Co(9)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. In the fifth Si site, Si(5) is bonded to one O(1), one O(15), one O(17), and one O(2) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra, and corners with two equivalent Co(1)O4 tetrahedra. In the sixth Si site, Si(6) is bonded to one O(14), one O(21), one O(22), and one O(23) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(3)O4 tetrahedra. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Co(1), one Co(9), and one Si(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Co(8), and one Si(5) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Co(8), one Co(9), and one Si(4) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Li(2), one Co(9), and one Si(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(1), and one Si(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(5), and one Si(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(1), one Co(4), and one Si(2) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Co(1), one Co(2), and one Si(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(8), and one Si(4) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Li(2), one Co(9), and one Si(4) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Co(2), one Co(6), and one Si(3) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Co(3), one Co(7), and one Si(1) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(3), one Co(3), and one Si(3) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Co(2), one Co(3), and one Si(6) atom. In the fifteenth O site, O(15) is bonded in a trigonal planar geometry to one Li(3), one Co(1), and one Si(5) atom. In the sixteenth O site, O(16) is bonded in a trigonal non-coplanar geometry to one Co(4), one Co(5), and one Si(2) atom. In the seventeenth O site, O(17) is bonded in a trigonal non-coplanar geometry to one Li(1), one Co(4), and one Si(5) atom. In the eighteenth O site, O(18) is bonded in a trigonal non-coplanar geometry to one Li(2), one Co(5), and one Si(1) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Co(4), one Co(7), and one Si(1) atom. In the twentieth O site, O(20) is bonded in a trigonal planar geometry to one Co(6), one Co(7), and one Si(2) atom. In the twenty-first O site, O(21) is bonded in a trigonal non-coplanar geometry to one Li(3), one Co(8), and one Si(6) atom. In the twenty-second O site, O(22) is bonded in a trigonal planar geometry to one Co(3), one Co(7), and one Si(6) atom. In the twenty-third O site, O(23) is bonded in a trigonal planar geometry to one Co(2), one Co(6), and one Si(6) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal planar geometry to one Co(5), one Co(6), and one Si(3) atom. is represented by the CIF file [CIF]
data_LiCo3(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.029
_cell_length_b   8.811
_cell_length_c   13.383
_cell_angle_alpha   108.995
_cell_angle_beta   98.935
_cell_angle_gamma   91.017
_symmetry_Int_Tables_number   1
_cell_volume   552.402
_cell_formula_units_Z   3
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  0.388  0.613  0.683  1.0
  Li  Li1  1  0.488  0.113  0.853  1.0
  Li  Li2  1  0.713  0.347  0.361  1.0
  Co  Co3  1  0.268  0.215  0.492  1.0
  Co  Co4  1  0.280  0.866  0.338  1.0
  Co  Co5  1  0.212  0.451  0.183  1.0
  Co  Co6  1  0.916  0.598  0.842  1.0
  Co  Co7  1  0.990  0.014  0.997  1.0
  Co  Co8  1  0.685  0.923  0.188  1.0
  Co  Co9  1  0.610  0.522  0.039  1.0
  Co  Co10  1  0.875  0.706  0.536  1.0
  Co  Co11  1  0.951  0.125  0.689  1.0
  Si  Si12  1  0.035  0.315  0.934  1.0
  Si  Si13  1  0.471  0.796  0.941  1.0
  Si  Si14  1  0.187  0.147  0.253  1.0
  Si  Si15  1  0.407  0.933  0.595  1.0
  Si  Si16  1  0.830  0.410  0.600  1.0
  Si  Si17  1  0.755  0.648  0.283  1.0
  O  O18  1  0.024  0.260  0.602  1.0
  O  O19  1  0.034  0.552  0.589  1.0
  O  O20  1  0.092  0.907  0.616  1.0
  O  O21  1  0.164  0.230  0.827  1.0
  O  O22  1  0.035  0.204  0.358  1.0
  O  O23  1  0.337  0.969  0.961  1.0
  O  O24  1  0.277  0.655  0.842  1.0
  O  O25  1  0.383  0.996  0.490  1.0
  O  O26  1  0.536  0.756  0.573  1.0
  O  O27  1  0.585  0.065  0.700  1.0
  O  O28  1  0.402  0.014  0.268  1.0
  O  O29  1  0.286  0.392  0.035  1.0
  O  O30  1  0.362  0.296  0.242  1.0
  O  O31  1  0.425  0.658  0.265  1.0
  O  O32  1  0.583  0.348  0.498  1.0
  O  O33  1  0.766  0.811  0.902  1.0
  O  O34  1  0.702  0.489  0.709  1.0
  O  O35  1  0.836  0.185  0.957  1.0
  O  O36  1  0.848  0.467  0.927  1.0
  O  O37  1  0.527  0.747  0.051  1.0
  O  O38  1  0.856  0.598  0.390  1.0
  O  O39  1  0.835  0.512  0.176  1.0
  O  O40  1  0.887  0.825  0.292  1.0
  O  O41  1  0.954  0.054  0.146  1.0
[/CIF]
.
The crystal structure described by LiCo3(SiO4)2 crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(17), one O(2), one O(7), and one O(9) atom. In the second Li site, Li(2) is bonded to one O(10), one O(18), one O(4), and one O(6) atom to form distorted LiO4 trigonal pyramids that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Co(5)O4 tetrahedra, corners with two equivalent Co(9)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(13), one O(15), one O(21), and one O(5) atom to form LiO4 tetrahedra that share  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. There are nine inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(15), one O(5), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Si(5)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(11), one O(14), one O(23), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, corners with two equivalent Co(6)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. In the third Co site, Co(3) is bonded to one O(12), one O(13), one O(14), and one O(22) atom to form CoO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with two equivalent Co(7)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. In the fourth Co site, Co(4) is bonded to one O(16), one O(17), one O(19), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and corners with two equivalent Si(2)O4 tetrahedra. In the fifth Co site, Co(5) is bonded to one O(16), one O(18), one O(24), and one O(6) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. In the sixth Co site, Co(6) is bonded to one O(11), one O(20), one O(23), and one O(24) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Si(3)O4 tetrahedra. In the seventh Co site, Co(7) is bonded to one O(12), one O(19), one O(20), and one O(22) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Si(1)O4 tetrahedra. In the eighth Co site, Co(8) is bonded to one O(2), one O(21), one O(3), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra, and corners with two equivalent Si(4)O4 tetrahedra. In the ninth Co site, Co(9) is bonded to one O(1), one O(10), one O(3), and one O(4) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, corners with two equivalent Si(4)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(12), one O(18), one O(19), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra, corners with two equivalent Co(7)O4 tetrahedra, and corners with two equivalent Li(2)O4 trigonal pyramids. In the second Si site, Si(2) is bonded to one O(16), one O(20), one O(6), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra, corners with two equivalent Co(4)O4 tetrahedra, corners with two equivalent Co(5)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. In the third Si site, Si(3) is bonded to one O(11), one O(13), one O(24), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Co(6)O4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(10), one O(3), one O(8), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(8)O4 tetrahedra, corners with two equivalent Co(9)O4 tetrahedra, and  a cornercorner with one Li(2)O4 trigonal pyramid. In the fifth Si site, Si(5) is bonded to one O(1), one O(15), one O(17), and one O(2) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra,  a cornercorner with one Co(9)O4 tetrahedra, and corners with two equivalent Co(1)O4 tetrahedra. In the sixth Si site, Si(6) is bonded to one O(14), one O(21), one O(22), and one O(23) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Co(6)O4 tetrahedra,  a cornercorner with one Co(7)O4 tetrahedra,  a cornercorner with one Co(8)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(3)O4 tetrahedra. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Co(1), one Co(9), and one Si(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Co(8), and one Si(5) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Co(8), one Co(9), and one Si(4) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Li(2), one Co(9), and one Si(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(1), and one Si(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(5), and one Si(2) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Li(1), one Co(4), and one Si(2) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Co(1), one Co(2), and one Si(4) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(8), and one Si(4) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Li(2), one Co(9), and one Si(4) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Co(2), one Co(6), and one Si(3) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Co(3), one Co(7), and one Si(1) atom. In the thirteenth O site, O(13) is bonded in a trigonal planar geometry to one Li(3), one Co(3), and one Si(3) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one Co(2), one Co(3), and one Si(6) atom. In the fifteenth O site, O(15) is bonded in a trigonal planar geometry to one Li(3), one Co(1), and one Si(5) atom. In the sixteenth O site, O(16) is bonded in a trigonal non-coplanar geometry to one Co(4), one Co(5), and one Si(2) atom. In the seventeenth O site, O(17) is bonded in a trigonal non-coplanar geometry to one Li(1), one Co(4), and one Si(5) atom. In the eighteenth O site, O(18) is bonded in a trigonal non-coplanar geometry to one Li(2), one Co(5), and one Si(1) atom. In the nineteenth O site, O(19) is bonded in a trigonal planar geometry to one Co(4), one Co(7), and one Si(1) atom. In the twentieth O site, O(20) is bonded in a trigonal planar geometry to one Co(6), one Co(7), and one Si(2) atom. In the twenty-first O site, O(21) is bonded in a trigonal non-coplanar geometry to one Li(3), one Co(8), and one Si(6) atom. In the twenty-second O site, O(22) is bonded in a trigonal planar geometry to one Co(3), one Co(7), and one Si(6) atom. In the twenty-third O site, O(23) is bonded in a trigonal planar geometry to one Co(2), one Co(6), and one Si(6) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal planar geometry to one Co(5), one Co(6), and one Si(3) atom. is represented by the CIF file [CIF]
data_LiCo3(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.029
_cell_length_b   8.811
_cell_length_c   13.383
_cell_angle_alpha   108.995
_cell_angle_beta   98.935
_cell_angle_gamma   91.017
_symmetry_Int_Tables_number   1
_cell_volume   552.402
_cell_formula_units_Z   3
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  0.388  0.613  0.683  1.0
  Li  Li1  1  0.488  0.113  0.853  1.0
  Li  Li2  1  0.713  0.347  0.361  1.0
  Co  Co3  1  0.268  0.215  0.492  1.0
  Co  Co4  1  0.280  0.866  0.338  1.0
  Co  Co5  1  0.212  0.451  0.183  1.0
  Co  Co6  1  0.916  0.598  0.842  1.0
  Co  Co7  1  0.990  0.014  0.997  1.0
  Co  Co8  1  0.685  0.923  0.188  1.0
  Co  Co9  1  0.610  0.522  0.039  1.0
  Co  Co10  1  0.875  0.706  0.536  1.0
  Co  Co11  1  0.951  0.125  0.689  1.0
  Si  Si12  1  0.035  0.315  0.934  1.0
  Si  Si13  1  0.471  0.796  0.941  1.0
  Si  Si14  1  0.187  0.147  0.253  1.0
  Si  Si15  1  0.407  0.933  0.595  1.0
  Si  Si16  1  0.830  0.410  0.600  1.0
  Si  Si17  1  0.755  0.648  0.283  1.0
  O  O18  1  0.024  0.260  0.602  1.0
  O  O19  1  0.034  0.552  0.589  1.0
  O  O20  1  0.092  0.907  0.616  1.0
  O  O21  1  0.164  0.230  0.827  1.0
  O  O22  1  0.035  0.204  0.358  1.0
  O  O23  1  0.337  0.969  0.961  1.0
  O  O24  1  0.277  0.655  0.842  1.0
  O  O25  1  0.383  0.996  0.490  1.0
  O  O26  1  0.536  0.756  0.573  1.0
  O  O27  1  0.585  0.065  0.700  1.0
  O  O28  1  0.402  0.014  0.268  1.0
  O  O29  1  0.286  0.392  0.035  1.0
  O  O30  1  0.362  0.296  0.242  1.0
  O  O31  1  0.425  0.658  0.265  1.0
  O  O32  1  0.583  0.348  0.498  1.0
  O  O33  1  0.766  0.811  0.902  1.0
  O  O34  1  0.702  0.489  0.709  1.0
  O  O35  1  0.836  0.185  0.957  1.0
  O  O36  1  0.848  0.467  0.927  1.0
  O  O37  1  0.527  0.747  0.051  1.0
  O  O38  1  0.856  0.598  0.390  1.0
  O  O39  1  0.835  0.512  0.176  1.0
  O  O40  1  0.887  0.825  0.292  1.0
  O  O41  1  0.954  0.054  0.146  1.0
[/CIF]
.