The compound described by PrGe2 crystallizes in the orthorhombic Imma space group. Pr(1) is bonded to six equivalent Ge(1) and six equivalent Ge(2) atoms to form a mixture of face and edge-sharing PrGe12 cuboctahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(2), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(1), and two equivalent Ge(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.581
_cell_length_b   8.581
_cell_length_c   8.581
_cell_angle_alpha   152.052
_cell_angle_beta   151.205
_cell_angle_gamma   40.561
_symmetry_Int_Tables_number   1
_cell_volume   142.339
_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  0.623  0.373  0.250  1.0
  Pr  Pr1  1  0.377  0.627  0.750  1.0
  Ge  Ge2  1  0.047  0.797  0.250  1.0
  Ge  Ge3  1  0.953  0.203  0.750  1.0
  Ge  Ge4  1  0.208  0.958  0.250  1.0
  Ge  Ge5  1  0.792  0.042  0.750  1.0
[/CIF]
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The compound described by PrGe2 crystallizes in the orthorhombic Imma space group. Pr(1) is bonded to six equivalent Ge(1) and six equivalent Ge(2) atoms to form a mixture of face and edge-sharing PrGe12 cuboctahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(2), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Ge(1), and two equivalent Ge(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.581
_cell_length_b   8.581
_cell_length_c   8.581
_cell_angle_alpha   152.052
_cell_angle_beta   151.205
_cell_angle_gamma   40.561
_symmetry_Int_Tables_number   1
_cell_volume   142.339
_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  0.623  0.373  0.250  1.0
  Pr  Pr1  1  0.377  0.627  0.750  1.0
  Ge  Ge2  1  0.047  0.797  0.250  1.0
  Ge  Ge3  1  0.953  0.203  0.750  1.0
  Ge  Ge4  1  0.208  0.958  0.250  1.0
  Ge  Ge5  1  0.792  0.042  0.750  1.0
[/CIF]
.