data_AlAgPtPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   4.79
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlAgPtPb
_chemical_formula_sum   'Al1 Ag1 Pt1 Pb1'
_cell_volume   77.82
_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
  Al  Al1  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.39  0.39  0.39  1.0
  Pt  Pt3  1  0.69  0.69  0.69  1.0
  Pb  Pb2  1  0.08  0.08  0.08  1.0

data_AlAgPtPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   11.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AlAgPtPb
_chemical_formula_sum   'Al3 Ag3 Pt3 Pb3'
_cell_volume   233.45
_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
  Al  Al0  3  0.0  0.0  0.0  1.0
  Ag  Ag1  3  0.0  0.0  0.61  1.0
  Pt  Pt2  3  0.0  0.0  0.31  1.0
  Pb  Pb3  3  0.0  0.0  0.92  1.0

Al Ag Pt Pb
PtAgAlPb crystallizes in the trigonal R3m space group. Pt(1) is bonded in a distorted hexagonal planar geometry to four equivalent Ag(1) and three equivalent Al(1) atoms. There are three shorter (2.79 Å) and one longer (3.59 Å) Pt(1)-Ag(1) bond length. All Pt(1)-Al(1) bond lengths are 2.79 Å. Ag(1) is bonded in a 11-coordinate geometry to four equivalent Pt(1), three equivalent Al(1), and four equivalent Pb(1) atoms. All Ag(1)-Al(1) bond lengths are 2.84 Å. There are three shorter (2.79 Å) and one longer (3.59 Å) Ag(1)-Pb(1) bond length. Al(1) is bonded in a single-bond geometry to three equivalent Pt(1), three equivalent Ag(1), and one Pb(1) atom. The Al(1)-Pb(1) bond length is 0.97 Å. Pb(1) is bonded in a single-bond geometry to four equivalent Ag(1) and one Al(1) atom.