data_Sr2BiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.51
_cell_length_b   5.41
_cell_length_c   5.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2BiSb
_chemical_formula_sum   'Sr2 Bi1 Sb1'
_cell_volume   135.5
_cell_formula_units_Z   1
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
  Sr  Sr2  1  0.0  0.0  0.0  1.0
  Sr  Sr3  1  0.0  0.71  0.77  1.0
  Bi  Bi0  1  0.26  0.71  0.0  1.0
  Sb  Sb1  1  0.26  0.0  0.77  1.0

data_Sr2BiSb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.51
_cell_length_b   5.41
_cell_length_c   5.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2BiSb
_chemical_formula_sum   'Sr2 Bi1 Sb1'
_cell_volume   135.5
_cell_formula_units_Z   1
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
  Sr  Sr0  1  0.0  0.0  0.0  1.0
  Sr  Sr1  1  0.0  0.71  0.77  1.0
  Bi  Bi2  1  0.26  0.71  0.0  1.0
  Sb  Sb3  1  0.26  0.0  0.77  1.0

Sr Sr Bi Sb
Sr2BiSb is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Sr2BiSb cluster. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 2-coordinate geometry to one Bi(1) and one Sb(1) atom. The Sr(1)-Bi(1) bond length is 1.97 Å. The Sr(1)-Sb(1) bond length is 1.71 Å. In the second Sr site, Sr(2) is bonded in a 2-coordinate geometry to one Bi(1) and one Sb(1) atom. The Sr(2)-Bi(1) bond length is 1.71 Å. The Sr(2)-Sb(1) bond length is 1.97 Å. Bi(1) is bonded in a 2-coordinate geometry to one Sr(1) and one Sr(2) atom. Sb(1) is bonded in a 2-coordinate geometry to one Sr(1) and one Sr(2) atom.