data_[Pm18Tc3O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tc  1.9000  1.3500  0.7417
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [10.0181]
_cell_length_b [10.0181]
_cell_length_c [9.6134]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm6TcO12]
_chemical_formula_sum '[Pm18 Tc3 O36]'
_cell_volume [835.5627]
_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  0.0461  0.7888  0.6451  1
  Tc  Tc1  3  0.0000  0.0000  0.0000  1
  O  O2  18  0.0368  0.8119  0.4025  1
  O  O3  18  0.0403  0.8586  0.8906  1
]