data_[Pm6Mg4Ga18]
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 [Immm]
_cell_length_a [4.2644]
_cell_length_b [10.1432]
_cell_length_c [13.2084]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Pm3Mg2Ga9]
_chemical_formula_sum '[Pm6 Mg4 Ga18]'
_cell_volume [571.3208]
_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  0.0000  0.0000  0.3124  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Mg  Mg2  4  0.0000  0.2099  0.5000  1
  Ga  Ga3  8  0.0000  0.2748  0.1446  1
  Ga  Ga4  8  0.0000  0.3728  0.3356  1
  Ga  Ga5  2  0.0000  0.5000  0.0000  1
]