data_[Sr2Pm10Sn12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.5270]
_cell_length_b [16.0156]
_cell_length_c [6.2934]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.0852]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [SrPm5Sn6]
_chemical_formula_sum '[Sr2 Pm10 Sn12]'
_cell_volume [736.0471]
_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
[
  Sr  Sr0  2  0.0000  0.0000  0.0000  1
  Pm  Pm1  4  0.0000  0.1396  0.5000  1
  Pm  Pm2  4  0.0000  0.3171  0.0000  1
  Pm  Pm3  2  0.0000  0.5000  0.5000  1
  Sn  Sn4  8  0.2117  0.3240  0.6824  1
  Sn  Sn5  4  0.2005  0.5000  0.1701  1
]