data_Sb2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.0
_cell_length_b   12.0
_cell_length_c   12.0
_cell_angle_alpha   162.86
_cell_angle_beta   161.27
_cell_angle_gamma   25.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sb2As
_chemical_formula_sum   'Sb4 As2'
_cell_volume   163.38
_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
  Sb  Sb2  1  0.79  0.02  0.65  1.0
  Sb  Sb3  1  0.0  0.93  0.05  1.0
  Sb  Sb4  1  0.79  0.02  0.22  1.0
  Sb  Sb5  1  0.0  0.93  0.48  1.0
  As  As0  1  0.0  0.98  0.36  1.0
  As  As1  1  0.79  0.98  0.34  1.0

data_Sb2As
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.58
_cell_length_b   3.9
_cell_length_c   12.0
_cell_angle_alpha   99.36
_cell_angle_beta   98.57
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Sb2As
_chemical_formula_sum   'Sb4 As2'
_cell_volume   163.38
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Sb  Sb0  2  0.05  0.18  0.07  1.0
  Sb  Sb1  2  0.05  0.75  0.64  1.0
  As  As2  2  0.0  0.01  0.9  1.0

Sb Sb Sb Sb As As