data_SbP2Br
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.6
_cell_length_b   5.6
_cell_length_c   5.6
_cell_angle_alpha   136.06
_cell_angle_beta   136.06
_cell_angle_gamma   63.88
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbP2Br
_chemical_formula_sum   'Sb1 P2 Br1'
_cell_volume   83.28
_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
  Sb  Sb3  1  0.0  0.0  0.75  1.0
  P  P1  1  0.09  0.0  0.37  1.0
  P  P2  1  0.0  0.09  0.37  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_SbP2Br
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.92
_cell_length_b   5.92
_cell_length_c   5.6
_cell_angle_alpha   90.0
_cell_angle_beta   121.94
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SbP2Br
_chemical_formula_sum   'Sb2 P4 Br2'
_cell_volume   166.56
_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
  Sb  Sb0  2  0.0  0.0  0.75  1.0
  P  P1  4  0.45  0.45  0.28  1.0
  Br  Br2  2  0.0  0.0  0.0  1.0

Sb P P Br
Sb P P Br 0 3 o o + 1 2 o o o 
SbP2Br is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SbP2Br clusters. Sb(1) is bonded in a single-bond geometry to one Br(1) atom. The Sb(1)-Br(1) bond length is 1.40 Å. P(1) is bonded in a 2-coordinate geometry to one P(1) and one Br(1) atom. The P(1)-P(1) bond length is 0.55 Å. The P(1)-Br(1) bond length is 1.76 Å. Br(1) is bonded in a 3-coordinate geometry to one Sb(1) and two equivalent P(1) atoms.