data_[Pm2Zr2Cr4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Zr  1.3300  1.5500  0.8600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [7.1888]
_cell_length_b [7.1888]
_cell_length_c [6.2656]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [PmZrCr2O8]
_chemical_formula_sum '[Pm2 Zr2 Cr4 O16]'
_cell_volume [323.7939]
_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
[
  Pm  Pm0  2  0.0000  0.5000  0.2500  1
  Zr  Zr1  2  0.0000  0.0000  0.0000  1
  Cr  Cr2  2  0.0000  0.0000  0.5000  1
  Cr  Cr3  2  0.0000  0.5000  0.7500  1
  O  O4  8  0.0000  0.1745  0.2957  1
  O  O5  8  0.0000  0.3104  0.9197  1
]