The material described by PrPdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one Pd(1), four equivalent Pd(2), two equivalent Si(2), and five equivalent Si(1) atoms to form a mixture of distorted face and edge-sharing PrSi7Pd5 cuboctahedra. In the second Pr site, Pr(2) is bonded in a 13-coordinate geometry to one Pr(2), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Pr(1), five equivalent Pr(2), and three equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Si(2), and two equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to one Pr(2), five equivalent Pr(1), two equivalent Pd(2), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Pd(2), and three equivalent Pd(1) atoms. is represented by the CIF file [CIF]
data_PrSiPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.889
_cell_length_b   7.891
_cell_length_c   10.899
_cell_angle_alpha   87.929
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   506.157
_cell_formula_units_Z   8
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  0.632  0.326  0.370  1.0
  Pr  Pr1  1  0.132  0.174  0.630  1.0
  Pr  Pr2  1  0.368  0.674  0.630  1.0
  Pr  Pr3  1  0.868  0.826  0.370  1.0
  Pr  Pr4  1  0.136  0.467  0.142  1.0
  Pr  Pr5  1  0.636  0.033  0.858  1.0
  Pr  Pr6  1  0.864  0.533  0.858  1.0
  Pr  Pr7  1  0.364  0.967  0.142  1.0
  Si  Si8  1  0.632  0.035  0.577  1.0
  Si  Si9  1  0.132  0.465  0.423  1.0
  Si  Si10  1  0.368  0.965  0.423  1.0
  Si  Si11  1  0.868  0.535  0.577  1.0
  Si  Si12  1  0.859  0.126  0.142  1.0
  Si  Si13  1  0.359  0.374  0.858  1.0
  Si  Si14  1  0.141  0.874  0.858  1.0
  Si  Si15  1  0.641  0.626  0.142  1.0
  Pd  Pd16  1  0.900  0.838  0.052  1.0
  Pd  Pd17  1  0.400  0.662  0.948  1.0
  Pd  Pd18  1  0.100  0.162  0.948  1.0
  Pd  Pd19  1  0.600  0.338  0.052  1.0
  Pd  Pd20  1  0.891  0.821  0.669  1.0
  Pd  Pd21  1  0.391  0.679  0.331  1.0
  Pd  Pd22  1  0.109  0.179  0.331  1.0
  Pd  Pd23  1  0.609  0.321  0.669  1.0
[/CIF]
.
The material described by PrPdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one Pd(1), four equivalent Pd(2), two equivalent Si(2), and five equivalent Si(1) atoms to form a mixture of distorted face and edge-sharing PrSi7Pd5 cuboctahedra. In the second Pr site, Pr(2) is bonded in a 13-coordinate geometry to one Pr(2), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Pr(1), five equivalent Pr(2), and three equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Si(2), and two equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to one Pr(2), five equivalent Pr(1), two equivalent Pd(2), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Pd(2), and three equivalent Pd(1) atoms. is represented by the CIF file [CIF]
data_PrSiPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.889
_cell_length_b   7.891
_cell_length_c   10.899
_cell_angle_alpha   87.929
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   506.157
_cell_formula_units_Z   8
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  0.632  0.326  0.370  1.0
  Pr  Pr1  1  0.132  0.174  0.630  1.0
  Pr  Pr2  1  0.368  0.674  0.630  1.0
  Pr  Pr3  1  0.868  0.826  0.370  1.0
  Pr  Pr4  1  0.136  0.467  0.142  1.0
  Pr  Pr5  1  0.636  0.033  0.858  1.0
  Pr  Pr6  1  0.864  0.533  0.858  1.0
  Pr  Pr7  1  0.364  0.967  0.142  1.0
  Si  Si8  1  0.632  0.035  0.577  1.0
  Si  Si9  1  0.132  0.465  0.423  1.0
  Si  Si10  1  0.368  0.965  0.423  1.0
  Si  Si11  1  0.868  0.535  0.577  1.0
  Si  Si12  1  0.859  0.126  0.142  1.0
  Si  Si13  1  0.359  0.374  0.858  1.0
  Si  Si14  1  0.141  0.874  0.858  1.0
  Si  Si15  1  0.641  0.626  0.142  1.0
  Pd  Pd16  1  0.900  0.838  0.052  1.0
  Pd  Pd17  1  0.400  0.662  0.948  1.0
  Pd  Pd18  1  0.100  0.162  0.948  1.0
  Pd  Pd19  1  0.600  0.338  0.052  1.0
  Pd  Pd20  1  0.891  0.821  0.669  1.0
  Pd  Pd21  1  0.391  0.679  0.331  1.0
  Pd  Pd22  1  0.109  0.179  0.331  1.0
  Pd  Pd23  1  0.609  0.321  0.669  1.0
[/CIF]
.