data_[Y2Ho1Er1Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.0734]
_cell_length_b [4.0127]
_cell_length_c [7.0883]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.9170]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Y2HoErSe4]
_chemical_formula_sum '[Y2 Ho1 Er1 Se4]'
_cell_volume [190.3257]
_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
[
  Y  Y0  1  0.0000  0.5000  0.5000  1.0
  Y  Y1  1  0.5000  0.0000  0.5000  1.0
  Ho  Ho2  1  0.5000  0.5000  0.0000  1.0
  Er  Er3  1  0.0000  0.0000  0.0000  1.0
  Se  Se4  2  0.2477  0.5000  0.2456  1.0
  Se  Se5  2  0.2505  0.0000  0.7538  1.0
]