data_[Er12Sb2As6Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.9488]
_cell_length_b [4.1087]
_cell_length_c [8.2574]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.5038]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er6SbAs3Se2]
_chemical_formula_sum '[Er12 Sb2 As6 Se4]'
_cell_volume [592.1176]
_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  0.0016  0.0000  0.7380  1.0
  Er  Er1  4  0.1643  0.5000  0.5907  1.0
  Er  Er2  4  0.1716  0.5000  0.0772  1.0
  Sb  Sb3  2  0.0000  0.5000  0.0000  1.0
  As  As4  4  0.1665  0.0000  0.8311  1.0
  As  As5  2  0.0000  0.5000  0.5000  1.0
  Se  Se6  4  0.1686  0.0000  0.3366  1.0
]