data_CrAgBiPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   5.2
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrAgBiPb
_chemical_formula_sum   'Cr1 Ag1 Bi1 Pb1'
_cell_volume   99.57
_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
  Cr  Cr2  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.52  0.52  0.52  1.0
  Bi  Bi1  1  0.68  0.68  0.68  1.0
  Pb  Pb3  1  0.84  0.84  0.84  1.0

data_CrAgBiPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.2
_cell_length_b   5.2
_cell_length_c   12.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CrAgBiPb
_chemical_formula_sum   'Cr3 Ag3 Bi3 Pb3'
_cell_volume   298.71
_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
  Cr  Cr0  3  0.0  0.0  0.0  1.0
  Ag  Ag1  3  0.0  0.0  0.48  1.0
  Bi  Bi2  3  0.0  0.0  0.32  1.0
  Pb  Pb3  3  0.0  0.0  0.16  1.0

Cr Ag Bi Pb
Cr Ag Bi Pb 0 3 - - - 1 2 o o o 2 3 o o o 
CrAgPbBi crystallizes in the trigonal R3m space group. Cr(1) is bonded in a distorted single-bond geometry to one Pb(1) and three equivalent Bi(1) atoms. The Cr(1)-Pb(1) bond length is 2.05 Å. All Cr(1)-Bi(1) bond lengths are 3.01 Å. Ag(1) is bonded to three equivalent Pb(1) and one Bi(1) atom to form AgBiPb3 trigonal pyramids that share corners with three equivalent Bi(1)Cr3AgPb trigonal bipyramids and corners with six equivalent Ag(1)BiPb3 trigonal pyramids. All Ag(1)-Pb(1) bond lengths are 3.01 Å. The Ag(1)-Bi(1) bond length is 2.05 Å. Pb(1) is bonded in a distorted linear geometry to one Cr(1), three equivalent Ag(1), and one Bi(1) atom. The Pb(1)-Bi(1) bond length is 2.05 Å. Bi(1) is bonded to three equivalent Cr(1), one Ag(1), and one Pb(1) atom to form distorted BiCr3AgPb trigonal bipyramids that share corners with six equivalent Bi(1)Cr3AgPb trigonal bipyramids and corners with three equivalent Ag(1)BiPb3 trigonal pyramids.