The structure described by LiSn4(PO4)3 crystallizes in the trigonal R3c space group. Li(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. is represented by the CIF file [CIF]
data_LiSn4(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.005
_cell_length_b   10.005
_cell_length_c   10.005
_cell_angle_alpha   58.550
_cell_angle_beta   58.550
_cell_angle_gamma   58.550
_symmetry_Int_Tables_number   1
_cell_volume   684.793
_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
  Li  Li0  1  0.043  0.043  0.043  1.0
  Li  Li1  1  0.543  0.543  0.543  1.0
  Sn  Sn2  1  0.587  0.257  0.128  1.0
  Sn  Sn3  1  0.757  0.087  0.628  1.0
  Sn  Sn4  1  0.257  0.128  0.587  1.0
  Sn  Sn5  1  0.190  0.190  0.190  1.0
  Sn  Sn6  1  0.690  0.690  0.690  1.0
  Sn  Sn7  1  0.628  0.757  0.087  1.0
  Sn  Sn8  1  0.087  0.628  0.757  1.0
  Sn  Sn9  1  0.128  0.587  0.257  1.0
  P  P10  1  0.291  0.734  0.829  1.0
  P  P11  1  0.829  0.291  0.734  1.0
  P  P12  1  0.234  0.791  0.329  1.0
  P  P13  1  0.329  0.234  0.791  1.0
  P  P14  1  0.791  0.329  0.234  1.0
  P  P15  1  0.734  0.829  0.291  1.0
  O  O16  1  0.500  0.155  0.672  1.0
  O  O17  1  0.256  0.743  0.689  1.0
  O  O18  1  0.259  0.912  0.811  1.0
  O  O19  1  0.655  0.000  0.172  1.0
  O  O20  1  0.155  0.672  0.500  1.0
  O  O21  1  0.412  0.759  0.311  1.0
  O  O22  1  0.672  0.500  0.155  1.0
  O  O23  1  0.243  0.756  0.189  1.0
  O  O24  1  0.620  0.815  0.475  1.0
  O  O25  1  0.311  0.412  0.759  1.0
  O  O26  1  0.815  0.475  0.620  1.0
  O  O27  1  0.000  0.172  0.655  1.0
  O  O28  1  0.975  0.315  0.120  1.0
  O  O29  1  0.756  0.189  0.243  1.0
  O  O30  1  0.811  0.259  0.912  1.0
  O  O31  1  0.120  0.975  0.315  1.0
  O  O32  1  0.743  0.689  0.256  1.0
  O  O33  1  0.475  0.620  0.815  1.0
  O  O34  1  0.689  0.256  0.743  1.0
  O  O35  1  0.912  0.811  0.259  1.0
  O  O36  1  0.189  0.243  0.756  1.0
  O  O37  1  0.759  0.311  0.412  1.0
  O  O38  1  0.315  0.120  0.975  1.0
  O  O39  1  0.172  0.655  0.000  1.0
[/CIF]
.
The structure described by LiSn4(PO4)3 crystallizes in the trigonal R3c space group. Li(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom. is represented by the CIF file [CIF]
data_LiSn4(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.005
_cell_length_b   10.005
_cell_length_c   10.005
_cell_angle_alpha   58.550
_cell_angle_beta   58.550
_cell_angle_gamma   58.550
_symmetry_Int_Tables_number   1
_cell_volume   684.793
_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
  Li  Li0  1  0.043  0.043  0.043  1.0
  Li  Li1  1  0.543  0.543  0.543  1.0
  Sn  Sn2  1  0.587  0.257  0.128  1.0
  Sn  Sn3  1  0.757  0.087  0.628  1.0
  Sn  Sn4  1  0.257  0.128  0.587  1.0
  Sn  Sn5  1  0.190  0.190  0.190  1.0
  Sn  Sn6  1  0.690  0.690  0.690  1.0
  Sn  Sn7  1  0.628  0.757  0.087  1.0
  Sn  Sn8  1  0.087  0.628  0.757  1.0
  Sn  Sn9  1  0.128  0.587  0.257  1.0
  P  P10  1  0.291  0.734  0.829  1.0
  P  P11  1  0.829  0.291  0.734  1.0
  P  P12  1  0.234  0.791  0.329  1.0
  P  P13  1  0.329  0.234  0.791  1.0
  P  P14  1  0.791  0.329  0.234  1.0
  P  P15  1  0.734  0.829  0.291  1.0
  O  O16  1  0.500  0.155  0.672  1.0
  O  O17  1  0.256  0.743  0.689  1.0
  O  O18  1  0.259  0.912  0.811  1.0
  O  O19  1  0.655  0.000  0.172  1.0
  O  O20  1  0.155  0.672  0.500  1.0
  O  O21  1  0.412  0.759  0.311  1.0
  O  O22  1  0.672  0.500  0.155  1.0
  O  O23  1  0.243  0.756  0.189  1.0
  O  O24  1  0.620  0.815  0.475  1.0
  O  O25  1  0.311  0.412  0.759  1.0
  O  O26  1  0.815  0.475  0.620  1.0
  O  O27  1  0.000  0.172  0.655  1.0
  O  O28  1  0.975  0.315  0.120  1.0
  O  O29  1  0.756  0.189  0.243  1.0
  O  O30  1  0.811  0.259  0.912  1.0
  O  O31  1  0.120  0.975  0.315  1.0
  O  O32  1  0.743  0.689  0.256  1.0
  O  O33  1  0.475  0.620  0.815  1.0
  O  O34  1  0.689  0.256  0.743  1.0
  O  O35  1  0.912  0.811  0.259  1.0
  O  O36  1  0.189  0.243  0.756  1.0
  O  O37  1  0.759  0.311  0.412  1.0
  O  O38  1  0.315  0.120  0.975  1.0
  O  O39  1  0.172  0.655  0.000  1.0
[/CIF]
.