data_[Pm4Br12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.5211]
_cell_length_b [13.0159]
_cell_length_c [7.4168]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.6206]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmBr3]
_chemical_formula_sum '[Pm4 Br12]'
_cell_volume [683.9068]
_cell_formula_units_Z [4]
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  4  0.0000  0.1661  0.0000  1
  Br  Br1  8  0.2375  0.1851  0.7649  1
  Br  Br2  4  0.2054  0.0000  0.2388  1
]