The structure described by Sn4(PO4)3 crystallizes in the trigonal R3c space group. 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(3), and one O(4) atom. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(2) 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 120 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Sn4(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.206
_cell_length_b   10.206
_cell_length_c   10.206
_cell_angle_alpha   57.532
_cell_angle_beta   57.532
_cell_angle_gamma   57.532
_symmetry_Int_Tables_number   1
_cell_volume   708.980
_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
  Sn  Sn0  1  0.252  0.369  0.902  1.0
  Sn  Sn1  1  0.869  0.752  0.402  1.0
  Sn  Sn2  1  0.402  0.869  0.752  1.0
  Sn  Sn3  1  0.817  0.817  0.817  1.0
  Sn  Sn4  1  0.317  0.317  0.317  1.0
  Sn  Sn5  1  0.369  0.902  0.252  1.0
  Sn  Sn6  1  0.752  0.402  0.869  1.0
  Sn  Sn7  1  0.902  0.252  0.369  1.0
  P  P8  1  0.268  0.706  0.173  1.0
  P  P9  1  0.206  0.768  0.673  1.0
  P  P10  1  0.706  0.173  0.268  1.0
  P  P11  1  0.173  0.268  0.706  1.0
  P  P12  1  0.673  0.206  0.768  1.0
  P  P13  1  0.768  0.673  0.206  1.0
  O  O14  1  0.096  0.712  0.210  1.0
  O  O15  1  0.393  0.529  0.176  1.0
  O  O16  1  0.029  0.893  0.676  1.0
  O  O17  1  0.712  0.210  0.096  1.0
  O  O18  1  0.212  0.596  0.710  1.0
  O  O19  1  0.176  0.393  0.529  1.0
  O  O20  1  0.529  0.176  0.393  1.0
  O  O21  1  0.835  0.001  0.327  1.0
  O  O22  1  0.710  0.212  0.596  1.0
  O  O23  1  0.001  0.327  0.835  1.0
  O  O24  1  0.304  0.250  0.755  1.0
  O  O25  1  0.501  0.335  0.827  1.0
  O  O26  1  0.210  0.096  0.712  1.0
  O  O27  1  0.676  0.029  0.893  1.0
  O  O28  1  0.327  0.835  0.001  1.0
  O  O29  1  0.893  0.676  0.029  1.0
  O  O30  1  0.750  0.804  0.255  1.0
  O  O31  1  0.596  0.710  0.212  1.0
  O  O32  1  0.250  0.755  0.304  1.0
  O  O33  1  0.335  0.827  0.501  1.0
  O  O34  1  0.827  0.501  0.335  1.0
  O  O35  1  0.755  0.304  0.250  1.0
  O  O36  1  0.255  0.750  0.804  1.0
  O  O37  1  0.804  0.255  0.750  1.0
[/CIF]
.
The structure described by Sn4(PO4)3 crystallizes in the trigonal R3c space group. 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(3), and one O(4) atom. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(2) 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 120 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Sn(2) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Sn(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Sn4(PO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.206
_cell_length_b   10.206
_cell_length_c   10.206
_cell_angle_alpha   57.532
_cell_angle_beta   57.532
_cell_angle_gamma   57.532
_symmetry_Int_Tables_number   1
_cell_volume   708.980
_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
  Sn  Sn0  1  0.252  0.369  0.902  1.0
  Sn  Sn1  1  0.869  0.752  0.402  1.0
  Sn  Sn2  1  0.402  0.869  0.752  1.0
  Sn  Sn3  1  0.817  0.817  0.817  1.0
  Sn  Sn4  1  0.317  0.317  0.317  1.0
  Sn  Sn5  1  0.369  0.902  0.252  1.0
  Sn  Sn6  1  0.752  0.402  0.869  1.0
  Sn  Sn7  1  0.902  0.252  0.369  1.0
  P  P8  1  0.268  0.706  0.173  1.0
  P  P9  1  0.206  0.768  0.673  1.0
  P  P10  1  0.706  0.173  0.268  1.0
  P  P11  1  0.173  0.268  0.706  1.0
  P  P12  1  0.673  0.206  0.768  1.0
  P  P13  1  0.768  0.673  0.206  1.0
  O  O14  1  0.096  0.712  0.210  1.0
  O  O15  1  0.393  0.529  0.176  1.0
  O  O16  1  0.029  0.893  0.676  1.0
  O  O17  1  0.712  0.210  0.096  1.0
  O  O18  1  0.212  0.596  0.710  1.0
  O  O19  1  0.176  0.393  0.529  1.0
  O  O20  1  0.529  0.176  0.393  1.0
  O  O21  1  0.835  0.001  0.327  1.0
  O  O22  1  0.710  0.212  0.596  1.0
  O  O23  1  0.001  0.327  0.835  1.0
  O  O24  1  0.304  0.250  0.755  1.0
  O  O25  1  0.501  0.335  0.827  1.0
  O  O26  1  0.210  0.096  0.712  1.0
  O  O27  1  0.676  0.029  0.893  1.0
  O  O28  1  0.327  0.835  0.001  1.0
  O  O29  1  0.893  0.676  0.029  1.0
  O  O30  1  0.750  0.804  0.255  1.0
  O  O31  1  0.596  0.710  0.212  1.0
  O  O32  1  0.250  0.755  0.304  1.0
  O  O33  1  0.335  0.827  0.501  1.0
  O  O34  1  0.827  0.501  0.335  1.0
  O  O35  1  0.755  0.304  0.250  1.0
  O  O36  1  0.255  0.750  0.804  1.0
  O  O37  1  0.804  0.255  0.750  1.0
[/CIF]
.