data_AgPtPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   4.6
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgPtPb
_chemical_formula_sum   'Ag1 Pt1 Pb1'
_cell_volume   68.85
_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
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Pt  Pt2  1  0.25  0.25  0.25  1.0
  Pb  Pb1  1  0.63  0.63  0.63  1.0

data_AgPtPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   11.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AgPtPb
_chemical_formula_sum   'Ag3 Pt3 Pb3'
_cell_volume   206.55
_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
  Ag  Ag0  3  0.0  0.0  0.0  1.0
  Pt  Pt1  3  0.0  0.0  0.75  1.0
  Pb  Pb2  3  0.0  0.0  0.37  1.0

Ag Pt Pb
PtAgPb is alpha boron-derived structured and crystallizes in the trigonal R3m space group. Pt(1) is bonded to four equivalent Ag(1) and three equivalent Pb(1) atoms to form distorted PtAg4Pb3 hexagonal pyramids that share corners with three equivalent Ag(1)Pt4Pb3 hexagonal pyramids, corners with six equivalent Pt(1)Ag4Pb3 hexagonal pyramids, edges with three equivalent Ag(1)Pt4Pb3 hexagonal pyramids, and edges with six equivalent Pt(1)Ag4Pb3 hexagonal pyramids. There are three shorter (2.81 Å) and one longer (2.85 Å) Pt(1)-Ag(1) bond length. All Pt(1)-Pb(1) bond lengths are 2.69 Å. Ag(1) is bonded to four equivalent Pt(1) and three equivalent Pb(1) atoms to form distorted AgPt4Pb3 hexagonal pyramids that share corners with three equivalent Pt(1)Ag4Pb3 hexagonal pyramids, corners with six equivalent Ag(1)Pt4Pb3 hexagonal pyramids, edges with three equivalent Pt(1)Ag4Pb3 hexagonal pyramids, and edges with six equivalent Ag(1)Pt4Pb3 hexagonal pyramids. All Ag(1)-Pb(1) bond lengths are 2.69 Å. Pb(1) is bonded in a hexagonal planar geometry to three equivalent Pt(1) and three equivalent Ag(1) atoms.