data_[Pm2Ga2Cu4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ga  1.8100  1.3000  0.7600
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I222]
_cell_length_a [5.4964]
_cell_length_b [5.7220]
_cell_length_c [6.3549]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [23]
_chemical_formula_structural [PmGa(CuO2)2]
_chemical_formula_sum '[Pm2 Ga2 Cu4 O8]'
_cell_volume [199.8623]
_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  0.0000  0.0000  1
  Ga  Ga1  2  0.0000  0.0000  0.5000  1
  Cu  Cu2  4  0.0000  0.5000  0.1997  1
  O  O3  8  0.1980  0.1743  0.3157  1
]