data_SbPbBr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.63
_cell_length_b   3.63
_cell_length_c   10.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   119.86
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbPbBr2
_chemical_formula_sum   'Sb1 Pb1 Br2'
_cell_volume   116.1
_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  0.0  1.0
  Pb  Pb2  1  0.0  0.0  0.07  1.0
  Br  Br0  1  0.82  0.0  0.42  1.0
  Br  Br1  1  0.82  0.0  0.73  1.0

data_SbPbBr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.63
_cell_length_b   6.3
_cell_length_c   10.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SbPbBr2
_chemical_formula_sum   'Sb2 Pb2 Br4'
_cell_volume   232.19
_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  0.0  1.0
  Pb  Pb1  2  0.0  0.0  0.07  1.0
  Br  Br2  2  0.32  0.5  0.42  1.0
  Br  Br3  2  0.32  0.5  0.73  1.0

Sb Pb Br Br
PbSbBr2 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two PbSbBr2 clusters. Pb(1) is bonded in a single-bond geometry to one Sb(1) atom. The Pb(1)-Sb(1) bond length is 0.75 Å. Sb(1) is bonded in a distorted single-bond geometry to one Pb(1) and one Br(2) atom. The Sb(1)-Br(2) bond length is 2.86 Å. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a distorted single-bond geometry to one Br(2) atom. The Br(1)-Br(2) bond length is 3.09 Å. In the second Br site, Br(2) is bonded in a single-bond geometry to one Sb(1) and one Br(1) atom.