data_[Er10P8Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  P  2.1900  1.0000  0.5500
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.9777]
_cell_length_b [5.6280]
_cell_length_c [19.9612]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Er5P4Se]
_chemical_formula_sum '[Er10 P8 Se2]'
_cell_volume [446.8547]
_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
[
  Er  Er0  4  0.0000  0.5000  0.1992  1
  Er  Er1  4  0.0000  0.5000  0.3923  1
  Er  Er2  2  0.0000  0.5000  0.0000  1
  P  P3  4  0.0000  0.0000  0.2013  1
  P  P4  4  0.0000  0.0000  0.4010  1
  Se  Se5  2  0.0000  0.0000  0.0000  1
]