data_[Pm2Ga1Si3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ga  1.8100  1.3000  0.7600
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [4.0773]
_cell_length_b [4.1413]
_cell_length_c [7.3310]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Pm2GaSi3]
_chemical_formula_sum '[Pm2 Ga1 Si3]'
_cell_volume [123.7880]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.4910  1
  Pm  Pm1  1  0.5000  0.0000  0.0060  1
  Ga  Ga2  1  0.5000  0.5000  0.6653  1
  Si  Si3  1  0.0000  0.5000  0.1657  1
  Si  Si4  1  0.0000  0.5000  0.8400  1
  Si  Si5  1  0.5000  0.5000  0.3320  1
]