data_InSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.55
_cell_length_b   11.55
_cell_length_c   11.55
_cell_angle_alpha   16.64
_cell_angle_beta   16.64
_cell_angle_gamma   16.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InSb3
_chemical_formula_sum   'In1 Sb3'
_cell_volume   110.25
_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
  In  In0  1  0.0  0.0  0.0  1.0
  Sb  Sb1  1  0.0  0.0  0.62  1.0
  Sb  Sb2  1  0.0  0.0  0.08  1.0
  Sb  Sb3  1  0.0  0.0  0.55  1.0

data_InSb3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.79
_cell_length_b   3.34
_cell_length_c   11.55
_cell_angle_alpha   90.0
_cell_angle_beta   99.62
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   InSb3
_chemical_formula_sum   'In2 Sb6'
_cell_volume   220.51
_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
  In  In0  2  0.0  0.0  0.0  1.0
  Sb  Sb1  2  -0.0  0.0  0.92  1.0
  Sb  Sb2  2  -0.0  0.0  0.38  1.0
  Sb  Sb3  2  -0.0  0.0  0.45  1.0

In Sb Sb Sb
InSb(Sb)2 is alpha carbon monoxide-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two diantimony molecules and two indium antimonide molecules.