data_[Ce3Pm36Ho18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [15.7300]
_cell_length_b [15.7300]
_cell_length_c [8.8308]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Ce(Pm2Ho)6]
_chemical_formula_sum '[Ce3 Pm36 Ho18]'
_cell_volume [1892.2812]
_cell_formula_units_Z [3]
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
[
  Ce  Ce0  3  0.0000  0.0000  0.0000  1
  Pm  Pm1  18  0.0357  0.2792  0.3360  1
  Pm  Pm2  18  0.0722  0.5623  0.6669  1
  Ho  Ho3  18  0.0171  0.1379  0.6671  1
]