data_[Pm21Sm3Ho36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Ho  1.2300  1.7500  1.0410
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [11.9687]
_cell_length_b [11.9687]
_cell_length_c [16.1997]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm7SmHo12]
_chemical_formula_sum '[Pm21 Sm3 Ho36]'
_cell_volume [2009.6923]
_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
[
  Pm  Pm0  18  0.0539  0.1888  0.7905  1
  Pm  Pm1  3  -0.0000  0.0000  0.5000  1
  Sm  Sm2  3  0.0000  0.0000  0.0000  1
  Ho  Ho3  18  0.0217  0.4475  0.7215  1
  Ho  Ho4  18  0.0502  0.5867  0.0829  1
]