The material described by PrGeSi is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Imma space group. Pr(1) is bonded to six equivalent Ge(1) and six equivalent Si(1) atoms to form a mixture of edge and face-sharing PrSi6Ge6 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), two equivalent Ge(1), and one Si(1) atom. Si(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(1), and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_PrSiGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.275
_cell_length_b   8.275
_cell_length_c   8.275
_cell_angle_alpha   151.044
_cell_angle_beta   150.360
_cell_angle_gamma   41.915
_symmetry_Int_Tables_number   1
_cell_volume   135.344
_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
  Pr  Pr0  1  0.381  0.631  0.750  1.0
  Pr  Pr1  1  0.619  0.369  0.250  1.0
  Si  Si2  1  0.962  0.212  0.750  1.0
  Si  Si3  1  0.038  0.788  0.250  1.0
  Ge  Ge4  1  0.798  0.048  0.750  1.0
  Ge  Ge5  1  0.202  0.952  0.250  1.0
[/CIF]
.
The material described by PrGeSi is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Imma space group. Pr(1) is bonded to six equivalent Ge(1) and six equivalent Si(1) atoms to form a mixture of edge and face-sharing PrSi6Ge6 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), two equivalent Ge(1), and one Si(1) atom. Si(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(1), and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_PrSiGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.275
_cell_length_b   8.275
_cell_length_c   8.275
_cell_angle_alpha   151.044
_cell_angle_beta   150.360
_cell_angle_gamma   41.915
_symmetry_Int_Tables_number   1
_cell_volume   135.344
_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
  Pr  Pr0  1  0.381  0.631  0.750  1.0
  Pr  Pr1  1  0.619  0.369  0.250  1.0
  Si  Si2  1  0.962  0.212  0.750  1.0
  Si  Si3  1  0.038  0.788  0.250  1.0
  Ge  Ge4  1  0.798  0.048  0.750  1.0
  Ge  Ge5  1  0.202  0.952  0.250  1.0
[/CIF]
.