data_[Pr4Mg2Cr4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Mg  1.3100  1.5000  0.8600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.5649]
_cell_length_b [10.7281]
_cell_length_c [6.3137]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.1922]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Pr2MgCr2O8]
_chemical_formula_sum '[Pr4 Mg2 Cr4 O16]'
_cell_volume [384.3439]
_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  2  0.0000  0.0992  0.0000  1
  Pr  Pr1  2  0.0000  0.8715  0.5000  1
  Mg  Mg2  2  0.0000  0.3897  0.0000  1
  Cr  Cr3  2  0.0000  0.3752  0.5000  1
  Cr  Cr4  2  0.0000  0.6443  0.0000  1
  O  O5  4  0.0717  0.2904  0.2947  1
  O  O6  4  0.1105  0.7261  0.8363  1
  O  O7  4  0.2333  0.9613  0.3303  1
  O  O8  4  0.2386  0.5252  0.1548  1
]