data_USb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.78
_cell_length_b   4.78
_cell_length_c   7.76
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   USb
_chemical_formula_sum   'U2 Sb2'
_cell_volume   153.57
_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
  U  U2  1  0.39  0.38  0.79  1.0
  U  U3  1  0.0  0.76  0.92  1.0
  Sb  Sb0  1  0.39  0.38  0.87  1.0
  Sb  Sb1  1  0.0  0.76  0.75  1.0

data_USb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.28
_cell_length_b   4.78
_cell_length_c   7.76
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   USb
_chemical_formula_sum   'U4 Sb4'
_cell_volume   307.13
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.01  0.0  0.92  1.0
  U  U1  2  0.39  0.0  0.79  1.0
  Sb  Sb2  2  0.01  0.0  0.75  1.0
  Sb  Sb3  2  0.39  0.0  0.87  1.0

U U Sb Sb