data_BeAgBiPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   5.16
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAgBiPb
_chemical_formula_sum   'Be1 Ag1 Bi1 Pb1'
_cell_volume   97.39
_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
  Be  Be1  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.83  0.83  0.83  1.0
  Bi  Bi2  1  0.48  0.48  0.48  1.0
  Pb  Pb3  1  0.65  0.65  0.65  1.0

data_BeAgBiPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   12.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   BeAgBiPb
_chemical_formula_sum   'Be3 Ag3 Bi3 Pb3'
_cell_volume   292.18
_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
  Be  Be0  3  0.0  0.0  0.0  1.0
  Ag  Ag1  3  0.0  0.0  0.17  1.0
  Bi  Bi2  3  0.0  0.0  0.52  1.0
  Pb  Pb3  3  0.0  0.0  0.35  1.0

Be Ag Bi Pb
BeAgPbBi crystallizes in the trigonal R3m space group. Be(1) is bonded to one Ag(1) and three equivalent Pb(1) atoms to form BeAgPb3 trigonal pyramids that share  a cornercorner with one Pb(1)Be3AgBi trigonal bipyramid and corners with six equivalent Be(1)AgPb3 trigonal pyramids. The Be(1)-Ag(1) bond length is 2.20 Å. All Be(1)-Pb(1) bond lengths are 2.99 Å. Ag(1) is bonded in a distorted linear geometry to one Be(1) and one Pb(1) atom. The Ag(1)-Pb(1) bond length is 2.20 Å. Pb(1) is bonded to three equivalent Be(1), one Ag(1), and one Bi(1) atom to form distorted PbBe3AgBi trigonal bipyramids that share corners with six equivalent Pb(1)Be3AgBi trigonal bipyramids and  a cornercorner with one Be(1)AgPb3 trigonal pyramid. The Pb(1)-Bi(1) bond length is 2.20 Å. Bi(1) is bonded in a distorted single-bond geometry to one Pb(1) atom.