The material described by InSb crystallizes in the orthorhombic Cmcm space group. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Sb(2) and four equivalent Sb(1) atoms to form distorted InSb6 octahedra that share corners with two equivalent Sb(2)In5Sb octahedra, corners with four equivalent In(1)Sb6 octahedra, and edges with four equivalent In(1)Sb6 octahedra. The corner-sharing octahedral tilt angles range from 0-39°. In the second In site, In(2) is bonded in a 5-coordinate geometry to one Sb(1) and four equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent In(2) and four equivalent In(1) atoms to form SbIn6 octahedra that share corners with four equivalent Sb(1)In6 octahedra, edges with four equivalent Sb(1)In6 octahedra, and edges with eight equivalent Sb(2)In5Sb octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Sb site, Sb(2) is bonded to one In(1), four equivalent In(2), and one Sb(2) atom to form distorted SbIn5Sb octahedra that share  a cornercorner with one In(1)Sb6 octahedra, corners with five equivalent Sb(2)In5Sb octahedra, edges with four equivalent Sb(2)In5Sb octahedra, and edges with four equivalent Sb(1)In6 octahedra. The corner-sharing octahedral tilt angles range from 9-39°. is represented by the CIF card [CIF]
data_InSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.398
_cell_length_b   4.398
_cell_length_c   18.017
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   92.570
_symmetry_Int_Tables_number   1
_cell_volume   348.088
_cell_formula_units_Z   6
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  0.080  0.920  0.250  1.0
  In  In1  1  0.920  0.080  0.750  1.0
  In  In2  1  0.414  0.586  0.090  1.0
  In  In3  1  0.586  0.414  0.590  1.0
  In  In4  1  0.586  0.414  0.910  1.0
  In  In5  1  0.414  0.586  0.410  1.0
  Sb  Sb6  1  0.577  0.423  0.250  1.0
  Sb  Sb7  1  0.423  0.577  0.750  1.0
  Sb  Sb8  1  0.919  0.081  0.076  1.0
  Sb  Sb9  1  0.081  0.919  0.576  1.0
  Sb  Sb10  1  0.081  0.919  0.924  1.0
  Sb  Sb11  1  0.919  0.081  0.424  1.0
[/CIF]
.
The material described by InSb crystallizes in the orthorhombic Cmcm space group. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Sb(2) and four equivalent Sb(1) atoms to form distorted InSb6 octahedra that share corners with two equivalent Sb(2)In5Sb octahedra, corners with four equivalent In(1)Sb6 octahedra, and edges with four equivalent In(1)Sb6 octahedra. The corner-sharing octahedral tilt angles range from 0-39°. In the second In site, In(2) is bonded in a 5-coordinate geometry to one Sb(1) and four equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent In(2) and four equivalent In(1) atoms to form SbIn6 octahedra that share corners with four equivalent Sb(1)In6 octahedra, edges with four equivalent Sb(1)In6 octahedra, and edges with eight equivalent Sb(2)In5Sb octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Sb site, Sb(2) is bonded to one In(1), four equivalent In(2), and one Sb(2) atom to form distorted SbIn5Sb octahedra that share  a cornercorner with one In(1)Sb6 octahedra, corners with five equivalent Sb(2)In5Sb octahedra, edges with four equivalent Sb(2)In5Sb octahedra, and edges with four equivalent Sb(1)In6 octahedra. The corner-sharing octahedral tilt angles range from 9-39°. is represented by the CIF card [CIF]
data_InSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.398
_cell_length_b   4.398
_cell_length_c   18.017
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   92.570
_symmetry_Int_Tables_number   1
_cell_volume   348.088
_cell_formula_units_Z   6
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  0.080  0.920  0.250  1.0
  In  In1  1  0.920  0.080  0.750  1.0
  In  In2  1  0.414  0.586  0.090  1.0
  In  In3  1  0.586  0.414  0.590  1.0
  In  In4  1  0.586  0.414  0.910  1.0
  In  In5  1  0.414  0.586  0.410  1.0
  Sb  Sb6  1  0.577  0.423  0.250  1.0
  Sb  Sb7  1  0.423  0.577  0.750  1.0
  Sb  Sb8  1  0.919  0.081  0.076  1.0
  Sb  Sb9  1  0.081  0.919  0.576  1.0
  Sb  Sb10  1  0.081  0.919  0.924  1.0
  Sb  Sb11  1  0.919  0.081  0.424  1.0
[/CIF]
.