data_[Li2Pm4Er6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.0624]
_cell_length_b [12.2656]
_cell_length_c [7.0714]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.6351]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [LiPm2(ErSe2)3]
_chemical_formula_sum '[Li2 Pm4 Er6 Se12]'
_cell_volume [576.9418]
_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
[
  Li  Li0  2  0.0000  0.0000  0.0000  1
  Pm  Pm1  4  0.0000  0.3344  0.0000  1
  Er  Er2  4  0.0000  0.1687  0.5000  1
  Er  Er3  2  0.0000  0.5000  0.5000  1
  Se  Se4  8  0.2450  0.1602  0.2559  1
  Se  Se5  4  0.2336  0.0000  0.7457  1
]