data_[Pm16Mg2Ga4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mg  1.3100  1.5000  0.8600
  Ga  1.8100  1.3000  0.7600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.6086]
_cell_length_b [4.9513]
_cell_length_c [8.0422]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.6722]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8MgGa2]
_chemical_formula_sum '[Pm16 Mg2 Ga4]'
_cell_volume [660.2341]
_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
[
  Pm  Pm0  4  0.0462  0.0000  0.7360  1
  Pm  Pm1  4  0.0985  0.5000  0.4625  1
  Pm  Pm2  4  0.1762  0.0000  0.2669  1
  Pm  Pm3  4  0.1773  0.5000  0.9468  1
  Mg  Mg4  2  0.0000  0.5000  0.0000  1
  Ga  Ga5  4  0.2097  0.0000  0.6721  1
]