The material described by Li2CoSn(PO4)2 crystallizes in the triclinic P-1 space group. There are five inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(2), and one O(9) atom. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(12), and one O(2) atom. In the third Li site, Li(3,5) is bonded to two equivalent O(15), two equivalent O(5), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra; corners with two equivalent P(3)O4 tetrahedra; edges with two equivalent Li(3,5)O6 octahedra; and edges with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the fourth Li site, Li(4) is bonded to two equivalent O(16), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with four equivalent Co(1)O6 octahedra, corners with two equivalent P(4)O4 tetrahedra, edges with two equivalent Li(6)O6 octahedra, and edges with two equivalent P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the fifth Li site, Li(6) is bonded to two equivalent O(14), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with four equivalent Co(1)O6 octahedra, corners with two equivalent P(4)O4 tetrahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(12), one O(14), one O(16), one O(4), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Li(6)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the second Co site, Co(2) is bonded to one O(11), one O(13), one O(15), one O(3), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with four equivalent Li(3,5)O6 octahedra;  a cornercorner with one P(1)O4 tetrahedra; corners with three equivalent P(3)O4 tetrahedra; and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(13), one O(15), one O(5), and one O(9) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), and one O(6) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second P site, P(2) is bonded to one O(1), one O(10), one O(12), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the third P site, P(3) is bonded to one O(13), one O(15), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Li(3,5)O6 octahedra; corners with three equivalent Co(2)O6 octahedra; and edges with two equivalent Li(3,5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-58°. In the fourth P site, P(4) is bonded to one O(14), one O(16), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(4)O6 octahedra,  a cornercorner with one Li(6)O6 octahedra, corners with three equivalent Co(1)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, and  an edgeedge with one Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-58°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Li(2), one Sn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Li(2), one Sn(2), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Co(2) and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Co(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(3,5); one Sn(1); and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Li(6), one Sn(2), and one P(4) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to two equivalent Li(3,5); one Co(2); and one P(3) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(4), one Li(6), one Co(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Co(2), one Sn(1), and one P(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Li(1), one Co(1), one Sn(2), and one P(2) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Co(2), one Sn(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Co(1), one Sn(2), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Li(3,5); one Co(2); one Sn(1); and one P(3) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Li(6), one Co(1), one Sn(2), and one P(4) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Li(3,5); one Co(2); one Sn(1); and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Li(4), one Co(1), one Sn(2), and one P(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2CoSn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.838
_cell_length_b   6.271
_cell_length_c   11.315
_cell_angle_alpha   89.998
_cell_angle_beta   89.585
_cell_angle_gamma   89.946
_symmetry_Int_Tables_number   1
_cell_volume   343.269
_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
  Co  Co0  1  0.936  0.250  0.706  1.0
  Co  Co1  1  0.064  0.750  0.294  1.0
  Li  Li2  1  0.000  1.000  0.000  1.0
  Li  Li3  1  0.999  0.500  1.000  1.0
  Li  Li4  1  0.500  0.000  0.500  1.0
  Li  Li5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.745  0.751  0.990  1.0
  O  O7  1  0.255  0.249  0.010  1.0
  O  O8  1  0.662  0.251  0.860  1.0
  O  O9  1  0.338  0.750  0.140  1.0
  O  O10  1  0.239  0.750  0.585  1.0
  O  O11  1  0.761  0.250  0.415  1.0
  O  O12  1  0.192  0.250  0.553  1.0
  O  O13  1  0.808  0.750  0.447  1.0
  O  O14  1  0.202  0.053  0.818  1.0
  O  O15  1  0.201  0.447  0.819  1.0
  O  O16  1  0.799  0.553  0.181  1.0
  O  O17  1  0.798  0.947  0.182  1.0
  O  O18  1  0.786  0.549  0.637  1.0
  O  O19  1  0.786  0.950  0.638  1.0
  O  O20  1  0.214  0.050  0.362  1.0
  O  O21  1  0.214  0.451  0.363  1.0
  P  P22  1  0.348  0.250  0.879  1.0
  P  P23  1  0.652  0.750  0.121  1.0
  P  P24  1  0.920  0.750  0.575  1.0
  P  P25  1  0.080  0.250  0.425  1.0
  Sn  Sn26  1  0.485  0.750  0.775  1.0
  Sn  Sn27  1  0.515  0.250  0.225  1.0
[/CIF]
.
The material described by Li2CoSn(PO4)2 crystallizes in the triclinic P-1 space group. There are five inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(2), and one O(9) atom. In the second Li site, Li(2) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(12), and one O(2) atom. In the third Li site, Li(3,5) is bonded to two equivalent O(15), two equivalent O(5), and two equivalent O(7) atoms to form LiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra; corners with two equivalent P(3)O4 tetrahedra; edges with two equivalent Li(3,5)O6 octahedra; and edges with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the fourth Li site, Li(4) is bonded to two equivalent O(16), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with four equivalent Co(1)O6 octahedra, corners with two equivalent P(4)O4 tetrahedra, edges with two equivalent Li(6)O6 octahedra, and edges with two equivalent P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the fifth Li site, Li(6) is bonded to two equivalent O(14), two equivalent O(6), and two equivalent O(8) atoms to form LiO6 octahedra that share corners with four equivalent Co(1)O6 octahedra, corners with two equivalent P(4)O4 tetrahedra, edges with two equivalent Li(4)O6 octahedra, and edges with two equivalent P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(12), one O(14), one O(16), one O(4), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Li(4)O6 octahedra, corners with two equivalent Li(6)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with three equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. In the second Co site, Co(2) is bonded to one O(11), one O(13), one O(15), one O(3), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with four equivalent Li(3,5)O6 octahedra;  a cornercorner with one P(1)O4 tetrahedra; corners with three equivalent P(3)O4 tetrahedra; and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-69°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(13), one O(15), one O(5), and one O(9) atom. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(14), one O(16), one O(2), and one O(6) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(11), one O(2), one O(3), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra and  an edgeedge with one Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second P site, P(2) is bonded to one O(1), one O(10), one O(12), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra and  an edgeedge with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the third P site, P(3) is bonded to one O(13), one O(15), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Li(3,5)O6 octahedra; corners with three equivalent Co(2)O6 octahedra; and edges with two equivalent Li(3,5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-58°. In the fourth P site, P(4) is bonded to one O(14), one O(16), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Li(4)O6 octahedra,  a cornercorner with one Li(6)O6 octahedra, corners with three equivalent Co(1)O6 octahedra,  an edgeedge with one Li(4)O6 octahedra, and  an edgeedge with one Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-58°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Li(2), one Sn(1), and one P(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Li(2), one Sn(2), and one P(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Co(2) and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Co(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(3,5); one Sn(1); and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to one Li(4), one Li(6), one Sn(2), and one P(4) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to two equivalent Li(3,5); one Co(2); and one P(3) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Li(4), one Li(6), one Co(1), and one P(4) atom. In the ninth O site, O(9) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Co(2), one Sn(1), and one P(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Li(1), one Co(1), one Sn(2), and one P(2) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Co(2), one Sn(1), and one P(1) atom. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Co(1), one Sn(2), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Li(3,5); one Co(2); one Sn(1); and one P(3) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Li(6), one Co(1), one Sn(2), and one P(4) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Li(3,5); one Co(2); one Sn(1); and one P(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Li(4), one Co(1), one Sn(2), and one P(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2CoSn(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.838
_cell_length_b   6.271
_cell_length_c   11.315
_cell_angle_alpha   89.998
_cell_angle_beta   89.585
_cell_angle_gamma   89.946
_symmetry_Int_Tables_number   1
_cell_volume   343.269
_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
  Co  Co0  1  0.936  0.250  0.706  1.0
  Co  Co1  1  0.064  0.750  0.294  1.0
  Li  Li2  1  0.000  1.000  0.000  1.0
  Li  Li3  1  0.999  0.500  1.000  1.0
  Li  Li4  1  0.500  0.000  0.500  1.0
  Li  Li5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.745  0.751  0.990  1.0
  O  O7  1  0.255  0.249  0.010  1.0
  O  O8  1  0.662  0.251  0.860  1.0
  O  O9  1  0.338  0.750  0.140  1.0
  O  O10  1  0.239  0.750  0.585  1.0
  O  O11  1  0.761  0.250  0.415  1.0
  O  O12  1  0.192  0.250  0.553  1.0
  O  O13  1  0.808  0.750  0.447  1.0
  O  O14  1  0.202  0.053  0.818  1.0
  O  O15  1  0.201  0.447  0.819  1.0
  O  O16  1  0.799  0.553  0.181  1.0
  O  O17  1  0.798  0.947  0.182  1.0
  O  O18  1  0.786  0.549  0.637  1.0
  O  O19  1  0.786  0.950  0.638  1.0
  O  O20  1  0.214  0.050  0.362  1.0
  O  O21  1  0.214  0.451  0.363  1.0
  P  P22  1  0.348  0.250  0.879  1.0
  P  P23  1  0.652  0.750  0.121  1.0
  P  P24  1  0.920  0.750  0.575  1.0
  P  P25  1  0.080  0.250  0.425  1.0
  Sn  Sn26  1  0.485  0.750  0.775  1.0
  Sn  Sn27  1  0.515  0.250  0.225  1.0
[/CIF]
.