The compound described by Pr2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Pr site, Pr(2) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing PrAu4 tetrahedra. Au(1) is bonded in a 7-coordinate geometry to three equivalent Pr(1) and four equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.134
_cell_length_b   7.370
_cell_length_c   9.379
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   354.897
_cell_formula_units_Z   4
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  0.250  0.997  0.673  1.0
  Pr  Pr1  1  0.750  0.003  0.327  1.0
  Pr  Pr2  1  0.250  0.497  0.827  1.0
  Pr  Pr3  1  0.750  0.503  0.173  1.0
  Pr  Pr4  1  0.750  0.148  0.910  1.0
  Pr  Pr5  1  0.250  0.852  0.090  1.0
  Pr  Pr6  1  0.750  0.648  0.590  1.0
  Pr  Pr7  1  0.250  0.352  0.410  1.0
  Au  Au8  1  0.250  0.758  0.407  1.0
  Au  Au9  1  0.750  0.242  0.593  1.0
  Au  Au10  1  0.250  0.258  0.093  1.0
  Au  Au11  1  0.750  0.742  0.907  1.0
[/CIF]
.
The compound described by Pr2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 3-coordinate geometry to three equivalent Au(1) atoms. In the second Pr site, Pr(2) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing PrAu4 tetrahedra. Au(1) is bonded in a 7-coordinate geometry to three equivalent Pr(1) and four equivalent Pr(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.134
_cell_length_b   7.370
_cell_length_c   9.379
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   354.897
_cell_formula_units_Z   4
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  0.250  0.997  0.673  1.0
  Pr  Pr1  1  0.750  0.003  0.327  1.0
  Pr  Pr2  1  0.250  0.497  0.827  1.0
  Pr  Pr3  1  0.750  0.503  0.173  1.0
  Pr  Pr4  1  0.750  0.148  0.910  1.0
  Pr  Pr5  1  0.250  0.852  0.090  1.0
  Pr  Pr6  1  0.750  0.648  0.590  1.0
  Pr  Pr7  1  0.250  0.352  0.410  1.0
  Au  Au8  1  0.250  0.758  0.407  1.0
  Au  Au9  1  0.750  0.242  0.593  1.0
  Au  Au10  1  0.250  0.258  0.093  1.0
  Au  Au11  1  0.750  0.742  0.907  1.0
[/CIF]
.