data_[Gd2Ho2I2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Ho  1.2300  1.7500  1.0410
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [3.6842]
_cell_length_b [3.6842]
_cell_length_c [13.9519]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [GdHoI]
_chemical_formula_sum '[Gd2 Ho2 I2]'
_cell_volume [189.3732]
_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
[
  Gd  Gd0  2  0.0000  0.0000  0.9997  1
  Ho  Ho1  2  0.0000  0.0000  0.6694  1
  I  I2  2  0.0000  0.0000  0.3308  1
]