data_SrIn2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.78
_cell_length_b   4.78
_cell_length_c   5.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrIn2Sb
_chemical_formula_sum   'Sr1 In2 Sb1'
_cell_volume   119.35
_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  Sr3  1  0.0  0.0  0.0  1.0
  In  In0  1  0.0  0.39  0.61  1.0
  In  In1  1  0.39  0.0  0.61  1.0
  Sb  Sb2  1  0.39  0.39  0.0  1.0

data_SrIn2Sb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.77
_cell_length_b   6.77
_cell_length_c   5.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrIn2Sb
_chemical_formula_sum   'Sr2 In4 Sb2'
_cell_volume   238.71
_cell_formula_units_Z   2
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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  In  In1  4  0.2  0.2  0.61  1.0
  Sb  Sb2  2  0.39  0.0  0.0  1.0

Sr In In Sb
Sr In In Sb 0 2 o o - 0 1 o o - 0 3 o o o 1 2 o o o 1 3 o o + 2 3 o o + 
SrIn2Sb crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 9-coordinate geometry to six equivalent In(1) and three equivalent Sb(1) atoms. There are a spread of Sr(1)-In(1) bond distances ranging from 2.78-3.68 Å. There is one shorter (2.65 Å) and two longer (3.46 Å) Sr(1)-Sb(1) bond lengths. In(1) is bonded in a 5-coordinate geometry to three equivalent Sr(1), one In(1), and one Sb(1) atom. The In(1)-In(1) bond length is 2.65 Å. The In(1)-Sb(1) bond length is 2.78 Å. Sb(1) is bonded in a 5-coordinate geometry to three equivalent Sr(1) and two equivalent In(1) atoms.