data_[Pm4Ho2Ag6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.2869]
_cell_length_b [4.2797]
_cell_length_c [9.7088]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.3251]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Ho(AgSe2)3]
_chemical_formula_sum '[Pm4 Ho2 Ag6 Se12]'
_cell_volume [658.5079]
_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
[
  Pm  Pm0  4  0.1609  0.0000  0.3141  1
  Ho  Ho1  2  0.0000  0.5000  0.0000  1
  Ag  Ag2  4  0.1636  0.0000  0.7251  1
  Ag  Ag3  2  0.0000  0.5000  0.5000  1
  Se  Se4  4  0.0188  0.0000  0.8089  1
  Se  Se5  4  0.1575  0.5000  0.5350  1
  Se  Se6  4  0.1773  0.5000  0.1212  1
]