The material described by PrGe2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Pr(1) is bonded to twelve equivalent Ge(1) atoms to form a mixture of face and edge-sharing PrGe12 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1) and three equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_PrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.220
_cell_length_b   4.220
_cell_length_c   8.417
_cell_angle_alpha   104.520
_cell_angle_beta   104.520
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   140.173
_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  0.875  0.625  0.250  1.0
  Pr  Pr1  1  0.125  0.375  0.750  1.0
  Ge  Ge2  1  0.706  0.956  0.913  1.0
  Ge  Ge3  1  0.456  0.206  0.413  1.0
  Ge  Ge4  1  0.544  0.794  0.587  1.0
  Ge  Ge5  1  0.294  0.044  0.087  1.0
[/CIF]
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The material described by PrGe2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Pr(1) is bonded to twelve equivalent Ge(1) atoms to form a mixture of face and edge-sharing PrGe12 cuboctahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1) and three equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_PrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.220
_cell_length_b   4.220
_cell_length_c   8.417
_cell_angle_alpha   104.520
_cell_angle_beta   104.520
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   140.173
_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  0.875  0.625  0.250  1.0
  Pr  Pr1  1  0.125  0.375  0.750  1.0
  Ge  Ge2  1  0.706  0.956  0.913  1.0
  Ge  Ge3  1  0.456  0.206  0.413  1.0
  Ge  Ge4  1  0.544  0.794  0.587  1.0
  Ge  Ge5  1  0.294  0.044  0.087  1.0
[/CIF]
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