data_[Eu2Fe2As2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Fe  1.8300  1.4000  0.8525
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [3.6196]
_cell_length_b [5.5017]
_cell_length_c [7.3854]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [EuFeAsO]
_chemical_formula_sum '[Eu2 Fe2 As2 O2]'
_cell_volume [147.0754]
_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
[
  Eu  Eu0  2  0.5000  0.3427  0.1040  1
  Fe  Fe1  2  0.0000  0.2061  0.4512  1
  As  As2  2  0.0000  0.1881  0.7831  1
  O  O3  2  0.5000  0.3200  0.4157  1
]