data_[Pr1Al2Si1Os2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Al  1.6100  1.2500  0.6750
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.4643]
_cell_length_b [4.4643]
_cell_length_c [5.7642]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [PrAl2SiOs2]
_chemical_formula_sum '[Pr1 Al2 Si1 Os2]'
_cell_volume [114.8787]
_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
[
  Pr  Pr0  1  0.0000  0.0000  0.5000  1
  Al  Al1  2  0.5000  0.5000  0.2611  1
  Si  Si2  1  0.0000  0.0000  0.0000  1
  Os  Os3  2  0.0000  0.5000  0.0000  1
]