data_PbAuBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   5.1
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PbAuBr
_chemical_formula_sum   'Pb1 Au1 Br1'
_cell_volume   93.94
_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
  Pb  Pb2  1  0.8  0.8  0.8  1.0
  Au  Au0  1  0.41  0.41  0.41  1.0
  Br  Br1  1  0.0  0.0  0.0  1.0

data_PbAuBr
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   12.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   PbAuBr
_chemical_formula_sum   'Pb3 Au3 Br3'
_cell_volume   281.82
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Pb  Pb0  3  0.0  0.0  0.2  1.0
  Au  Au1  3  0.0  0.0  0.59  1.0
  Br  Br2  3  0.0  0.0  -0.0  1.0

Pb Au Br
Pb Au Br 0 1 o o + 0 1 o + o 0 1 + o o 0 2 + + + 1 2 o o + 1 2 o + o 1 2 + o o 
AuPbBr crystallizes in the trigonal R3m space group. Au(1) is bonded in a distorted hexagonal planar geometry to three equivalent Pb(1) and three equivalent Br(1) atoms. All Au(1)-Pb(1) bond lengths are 3.04 Å. All Au(1)-Br(1) bond lengths are 3.11 Å. Pb(1) is bonded in a distorted single-bond geometry to three equivalent Au(1) and one Br(1) atom. The Pb(1)-Br(1) bond length is 2.45 Å. Br(1) is bonded in a distorted single-bond geometry to three equivalent Au(1) and one Pb(1) atom.