data_[U4As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [5.8124]
_cell_length_b [4.7612]
_cell_length_c [7.2946]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [UAs]
_chemical_formula_sum '[U4 As4]'
_cell_volume [201.8704]
_cell_formula_units_Z [4]
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
[
  U  U0  2  0.0000  0.0000  0.0000  1
  U  U1  2  0.2500  0.5000  0.1916  1
  As  As2  2  0.2500  0.0000  0.3697  1
  As  As3  2  0.2500  0.5000  0.8017  1
]