The compound described by Li4Cu3Sn(PO4)4 crystallizes in the monoclinic Pm space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Li site, Li(2) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(3) atom to form distorted LiO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  an edgeedge with one Cu(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-67°. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(12), one O(4), two equivalent O(2), and two equivalent O(8) atoms to form CuO6 octahedra that share corners with four equivalent Li(2)O6 octahedra, corners with four equivalent Cu(3)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-67°. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to one O(3), one O(7), two equivalent O(11), and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded to one O(10), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted CuO6 octahedra that share corners with four equivalent Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, edges with two equivalent Li(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. Sn(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form SnO6 octahedra that share corners with four equivalent Li(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-66°. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(3)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra,  an edgeedge with one Cu(3)O6 octahedra, and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-65°. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(3)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-49°. In the third P site, P(3) is bonded to one O(4), one O(7), and two equivalent O(8) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, and  an edgeedge with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-60°. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Li(2), one Sn(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(3), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Li(2), one Cu(2), and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(1), one Cu(1), and one P(3) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(1), one Cu(2), one Sn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted tetrahedral geometry to two equivalent Li(1), one Cu(3), and one P(2) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Cu(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(1), one Cu(1), one Cu(3), and one P(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sn(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Cu(3), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Cu(2), one Sn(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted tetrahedral geometry to two equivalent Li(2), one Cu(1), and one P(4) atom. is represented by the CIF card [CIF]
data_Li4Cu3Sn(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.003
_cell_length_b   4.823
_cell_length_c   10.662
_cell_angle_alpha   88.073
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   308.484
_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  0.233  0.023  0.023  1.0
  Li  Li1  1  0.767  0.023  0.023  1.0
  Li  Li2  1  0.763  0.498  0.481  1.0
  Li  Li3  1  0.237  0.498  0.481  1.0
  Cu  Cu4  1  0.000  0.997  0.280  1.0
  Cu  Cu5  1  0.000  0.477  0.804  1.0
  Cu  Cu6  1  0.500  0.517  0.225  1.0
  Sn  Sn7  1  0.500  0.986  0.714  1.0
  P  P8  1  0.500  0.083  0.408  1.0
  P  P9  1  0.500  0.402  0.896  1.0
  P  P10  1  0.000  0.592  0.096  1.0
  P  P11  1  0.000  0.918  0.591  1.0
  O  O12  1  0.500  0.217  0.546  1.0
  O  O13  1  0.292  0.216  0.342  1.0
  O  O14  1  0.708  0.216  0.342  1.0
  O  O15  1  0.000  0.234  0.588  1.0
  O  O16  1  0.000  0.274  0.091  1.0
  O  O17  1  0.299  0.263  0.823  1.0
  O  O18  1  0.701  0.263  0.823  1.0
  O  O19  1  0.500  0.294  0.032  1.0
  O  O20  1  0.000  0.731  0.961  1.0
  O  O21  1  0.792  0.716  0.165  1.0
  O  O22  1  0.208  0.716  0.165  1.0
  O  O23  1  0.500  0.721  0.880  1.0
  O  O24  1  0.500  0.768  0.423  1.0
  O  O25  1  0.792  0.788  0.667  1.0
  O  O26  1  0.208  0.788  0.667  1.0
  O  O27  1  0.000  0.779  0.464  1.0
[/CIF]
.
The compound described by Li4Cu3Sn(PO4)4 crystallizes in the monoclinic Pm space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded in a 5-coordinate geometry to one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Li site, Li(2) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(3) atom to form distorted LiO6 octahedra that share corners with two equivalent Cu(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  an edgeedge with one Cu(3)O6 octahedra, edges with two equivalent Li(2)O6 octahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-67°. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(12), one O(4), two equivalent O(2), and two equivalent O(8) atoms to form CuO6 octahedra that share corners with four equivalent Li(2)O6 octahedra, corners with four equivalent Cu(3)O6 octahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, and  an edgeedge with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-67°. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to one O(3), one O(7), two equivalent O(11), and two equivalent O(5) atoms. In the third Cu site, Cu(3) is bonded to one O(10), one O(6), two equivalent O(2), and two equivalent O(8) atoms to form distorted CuO6 octahedra that share corners with four equivalent Cu(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, edges with two equivalent Li(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. Sn(1) is bonded to one O(1), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form SnO6 octahedra that share corners with four equivalent Li(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-66°. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(10), and two equivalent O(2) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(3)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Cu(1)O6 octahedra,  an edgeedge with one Cu(3)O6 octahedra, and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-65°. In the second P site, P(2) is bonded to one O(6), one O(9), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(3)O6 octahedra,  a cornercorner with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-49°. In the third P site, P(3) is bonded to one O(4), one O(7), and two equivalent O(8) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Cu(3)O6 octahedra, and  an edgeedge with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-60°. In the fourth P site, P(4) is bonded to one O(12), one O(3), and two equivalent O(11) atoms to form PO4 tetrahedra that share  a cornercorner with one Cu(1)O6 octahedra, corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, and edges with two equivalent Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Li(2), one Sn(1), and one P(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(3), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Li(2), one Cu(2), and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li(1), one Cu(1), and one P(3) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Li(1), one Cu(2), one Sn(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted tetrahedral geometry to two equivalent Li(1), one Cu(3), and one P(2) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Cu(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(1), one Cu(1), one Cu(3), and one P(3) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Sn(1) and one P(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to two equivalent Li(2), one Cu(3), and one P(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Li(2), one Cu(2), one Sn(1), and one P(4) atom. In the twelfth O site, O(12) is bonded in a distorted tetrahedral geometry to two equivalent Li(2), one Cu(1), and one P(4) atom. is represented by the CIF card [CIF]
data_Li4Cu3Sn(PO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.003
_cell_length_b   4.823
_cell_length_c   10.662
_cell_angle_alpha   88.073
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   308.484
_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  0.233  0.023  0.023  1.0
  Li  Li1  1  0.767  0.023  0.023  1.0
  Li  Li2  1  0.763  0.498  0.481  1.0
  Li  Li3  1  0.237  0.498  0.481  1.0
  Cu  Cu4  1  0.000  0.997  0.280  1.0
  Cu  Cu5  1  0.000  0.477  0.804  1.0
  Cu  Cu6  1  0.500  0.517  0.225  1.0
  Sn  Sn7  1  0.500  0.986  0.714  1.0
  P  P8  1  0.500  0.083  0.408  1.0
  P  P9  1  0.500  0.402  0.896  1.0
  P  P10  1  0.000  0.592  0.096  1.0
  P  P11  1  0.000  0.918  0.591  1.0
  O  O12  1  0.500  0.217  0.546  1.0
  O  O13  1  0.292  0.216  0.342  1.0
  O  O14  1  0.708  0.216  0.342  1.0
  O  O15  1  0.000  0.234  0.588  1.0
  O  O16  1  0.000  0.274  0.091  1.0
  O  O17  1  0.299  0.263  0.823  1.0
  O  O18  1  0.701  0.263  0.823  1.0
  O  O19  1  0.500  0.294  0.032  1.0
  O  O20  1  0.000  0.731  0.961  1.0
  O  O21  1  0.792  0.716  0.165  1.0
  O  O22  1  0.208  0.716  0.165  1.0
  O  O23  1  0.500  0.721  0.880  1.0
  O  O24  1  0.500  0.768  0.423  1.0
  O  O25  1  0.792  0.788  0.667  1.0
  O  O26  1  0.208  0.788  0.667  1.0
  O  O27  1  0.000  0.779  0.464  1.0
[/CIF]
.