data_[Pm16Sn10As2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [9.4218]
_cell_length_b [9.4218]
_cell_length_c [9.5006]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [Pm8Sn5As]
_chemical_formula_sum '[Pm16 Sn10 As2]'
_cell_volume [843.3763]
_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  8  0.0689  0.8087  0.8027  1
  Pm  Pm1  8  0.0708  0.6784  0.4466  1
  Sn  Sn2  8  0.1224  0.7513  0.1258  1
  Sn  Sn3  2  0.0000  0.0000  0.5000  1
  As  As4  2  0.0000  0.5000  0.7500  1
]