The crystal structure described by Pr3Ag4Sn4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to four equivalent Ag(1), two equivalent Sn(1), and two equivalent Sn(2) atoms. In the second Pr site, Pr(2) is bonded to eight equivalent Ag(1), two equivalent Sn(1), and two equivalent Sn(2) atoms to form distorted face-sharing PrAg8Sn4 cuboctahedra. Ag(1) is bonded in a 8-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to one Pr(2), two equivalent Pr(1), and four equivalent Ag(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Pr(2), two equivalent Pr(1), four equivalent Ag(1), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Pr3(AgSn)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.330
_cell_length_b   10.330
_cell_length_c   10.330
_cell_angle_alpha   159.172
_cell_angle_beta   128.865
_cell_angle_gamma   55.796
_symmetry_Int_Tables_number   1
_cell_volume   303.992
_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
  Pr  Pr0  1  0.169  0.669  0.500  1.0
  Pr  Pr1  1  0.500  0.500  0.000  1.0
  Pr  Pr2  1  0.831  0.331  0.500  1.0
  Ag  Ag3  1  0.401  0.116  0.286  1.0
  Ag  Ag4  1  0.170  0.884  0.286  1.0
  Ag  Ag5  1  0.830  0.116  0.714  1.0
  Ag  Ag6  1  0.599  0.884  0.714  1.0
  Sn  Sn7  1  0.316  0.316  0.000  1.0
  Sn  Sn8  1  0.844  0.500  0.344  1.0
  Sn  Sn9  1  0.684  0.684  0.000  1.0
  Sn  Sn10  1  0.156  0.500  0.656  1.0
[/CIF]
.
The crystal structure described by Pr3Ag4Sn4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to four equivalent Ag(1), two equivalent Sn(1), and two equivalent Sn(2) atoms. In the second Pr site, Pr(2) is bonded to eight equivalent Ag(1), two equivalent Sn(1), and two equivalent Sn(2) atoms to form distorted face-sharing PrAg8Sn4 cuboctahedra. Ag(1) is bonded in a 8-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 7-coordinate geometry to one Pr(2), two equivalent Pr(1), and four equivalent Ag(1) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to one Pr(2), two equivalent Pr(1), four equivalent Ag(1), and one Sn(2) atom. is represented by the CIF card [CIF]
data_Pr3(AgSn)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.330
_cell_length_b   10.330
_cell_length_c   10.330
_cell_angle_alpha   159.172
_cell_angle_beta   128.865
_cell_angle_gamma   55.796
_symmetry_Int_Tables_number   1
_cell_volume   303.992
_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
  Pr  Pr0  1  0.169  0.669  0.500  1.0
  Pr  Pr1  1  0.500  0.500  0.000  1.0
  Pr  Pr2  1  0.831  0.331  0.500  1.0
  Ag  Ag3  1  0.401  0.116  0.286  1.0
  Ag  Ag4  1  0.170  0.884  0.286  1.0
  Ag  Ag5  1  0.830  0.116  0.714  1.0
  Ag  Ag6  1  0.599  0.884  0.714  1.0
  Sn  Sn7  1  0.316  0.316  0.000  1.0
  Sn  Sn8  1  0.844  0.500  0.344  1.0
  Sn  Sn9  1  0.684  0.684  0.000  1.0
  Sn  Sn10  1  0.156  0.500  0.656  1.0
[/CIF]
.