data_[La8Sn4As2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Sn  1.9600  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.5545]
_cell_length_b [5.5545]
_cell_length_c [16.8852]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [La4Sn2As]
_chemical_formula_sum '[La8 Sn4 As2]'
_cell_volume [520.9489]
_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
[
  La  La0  4  0.0000  0.0000  0.1765  1
  La  La1  4  0.0000  0.5000  0.0000  1
  Sn  Sn2  4  0.0000  0.0000  0.3688  1
  As  As3  2  0.0000  0.0000  0.0000  1
]