data_[Ho8Tm4Se18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Tm  1.2500  1.7500  1.0950
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P-3c1]
_cell_length_a [7.1438]
_cell_length_b [7.1438]
_cell_length_c [19.3708]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [165]
_chemical_formula_structural [Ho4Tm2Se9]
_chemical_formula_sum '[Ho8 Tm4 Se18]'
_cell_volume [856.1176]
_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
[
  Ho  Ho0  4  0.3333  0.6667  0.0146  1
  Ho  Ho1  4  0.3333  0.6667  0.8190  1
  Tm  Tm2  4  0.0000  0.0000  0.1532  1
  Se  Se3  12  0.0234  0.3558  0.4166  1
  Se  Se4  6  0.0000  0.3073  0.7500  1
]