data_[Pr8Ge8O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4_12_12]
_cell_length_a [7.0199]
_cell_length_b [7.0199]
_cell_length_c [12.8010]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [92]
_chemical_formula_structural [Pr2Ge2O7]
_chemical_formula_sum '[Pr8 Ge8 O28]'
_cell_volume [630.8185]
_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  8  0.1205  0.6538  0.6346  1
  Ge  Ge1  8  0.0986  0.8418  0.1239  1
  O  O2  8  0.0212  0.9264  0.8694  1
  O  O3  8  0.0579  0.3383  0.5730  1
  O  O4  8  0.1412  0.6961  0.4527  1
  O  O5  4  0.2024  0.7976  0.2500  1
]