data_[Ce4Pm2Os18]
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
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.1517]
_cell_length_b [5.4556]
_cell_length_c [9.2994]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.6684]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ce2PmOs9]
_chemical_formula_sum '[Ce4 Pm2 Os18]'
_cell_volume [437.2130]
_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
[
  Ce  Ce0  4  0.1375  0.0000  0.4224  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Os  Os2  8  0.1713  0.7464  0.7634  1
  Os  Os3  4  0.0969  0.5000  0.2617  1
  Os  Os4  4  0.1374  0.5000  0.9946  1
  Os  Os5  2  0.0000  0.5000  0.5000  1
]