data_Al2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.38
_cell_length_b   6.38
_cell_length_c   6.94
_cell_angle_alpha   122.67
_cell_angle_beta   122.67
_cell_angle_gamma   34.78
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2Sb
_chemical_formula_sum   'Al4 Sb2'
_cell_volume   133.07
_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
  Al  Al0  1  0.9  0.0  0.53  1.0
  Al  Al1  1  0.84  0.0  0.84  1.0
  Al  Al2  1  0.41  0.0  0.88  1.0
  Al  Al3  1  0.36  0.0  0.19  1.0
  Sb  Sb4  1  0.55  0.0  0.01  1.0
  Sb  Sb5  1  0.71  0.0  0.72  1.0

data_Al2Sb
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.82
_cell_length_b   6.38
_cell_length_c   6.41
_cell_angle_alpha   65.75
_cell_angle_beta   72.69
_cell_angle_gamma   72.61
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Al2Sb
_chemical_formula_sum   'Al4 Sb2'
_cell_volume   133.07
_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
  Al  Al0  2  0.0  0.1  0.17  1.0
  Al  Al1  2  0.0  0.27  0.52  1.0
  Sb  Sb2  2  0.0  0.27  0.65  1.0

Al Al Al Al Sb Sb