data_[Y2Er2Sn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [3.3397]
_cell_length_b [3.3397]
_cell_length_c [17.3491]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [YErSn]
_chemical_formula_sum '[Y2 Er2 Sn2]'
_cell_volume [193.5097]
_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
[
  Y  Y0  2  0.0000  0.0000  0.9571  1
  Er  Er1  2  0.0000  0.0000  0.7591  1
  Sn  Sn2  2  0.0000  0.0000  0.1338  1
]