data_RhPb2Br
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.49
_cell_length_b   3.49
_cell_length_c   8.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   92.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RhPb2Br
_chemical_formula_sum   'Rh1 Pb2 Br1'
_cell_volume   97.87
_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
  Rh  Rh3  1  0.0  0.0  0.03  1.0
  Pb  Pb1  1  0.42  0.0  0.36  1.0
  Pb  Pb2  1  0.42  0.0  0.69  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_RhPb2Br
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.49
_cell_length_b   3.49
_cell_length_c   8.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   RhPb2Br
_chemical_formula_sum   'Rh1 Pb2 Br1'
_cell_volume   97.94
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Rh  Rh0  1  0.0  0.0  0.03  1.0
  Pb  Pb1  1  0.42  0.0  0.36  1.0
  Pb  Pb2  1  0.42  0.0  0.69  1.0
  Br  Br3  1  0.0  0.0  0.0  1.0

Rh Pb Pb Br
RhPb2Br crystallizes in the monoclinic Pm space group. Rh(1) is bonded in a single-bond geometry to two equivalent Pb(1) and one Br(1) atom. There is one shorter (3.07 Å) and one longer (3.37 Å) Rh(1)-Pb(1) bond length. The Rh(1)-Br(1) bond length is 0.22 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to two equivalent Rh(1), one Pb(2), and four equivalent Pb(1) atoms to form a mixture of distorted edge and corner-sharing PbRh2Pb5 pentagonal bipyramids. The Pb(1)-Pb(2) bond length is 2.65 Å. All Pb(1)-Pb(1) bond lengths are 3.49 Å. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one Pb(1) and two equivalent Br(1) atoms. There is one shorter (2.88 Å) and one longer (3.20 Å) Pb(2)-Br(1) bond length. Br(1) is bonded in a single-bond geometry to one Rh(1) and two equivalent Pb(2) atoms.