data_[Sm1Eu1H2I2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Eu  1.2000  1.8500  1.1985
  H  2.2000  0.2500  0.0000
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.9746]
_cell_length_b [3.9746]
_cell_length_c [9.4672]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [SmEu(HI)2]
_chemical_formula_sum '[Sm1 Eu1 H2 I2]'
_cell_volume [149.5591]
_cell_formula_units_Z [1]
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
[
  Sm  Sm0  1  0.5000  0.5000  0.1413  1
  Eu  Eu1  1  0.0000  0.0000  0.8535  1
  H  H2  2  0.0000  0.5000  0.0085  1
  I  I3  1  0.0000  0.0000  0.3111  1
  I  I4  1  0.5000  0.5000  0.6770  1
]