data_GeIrPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   4.63
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GeIrPb
_chemical_formula_sum   'Ge1 Ir1 Pb1'
_cell_volume   70.38
_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
  Ge  Ge0  1  0.0  0.0  0.0  1.0
  Ir  Ir1  1  0.28  0.28  0.28  1.0
  Pb  Pb2  1  0.64  0.64  0.64  1.0

data_GeIrPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   11.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   GeIrPb
_chemical_formula_sum   'Ge3 Ir3 Pb3'
_cell_volume   211.13
_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
  Ge  Ge0  3  0.0  0.0  0.0  1.0
  Ir  Ir1  3  0.0  0.0  0.72  1.0
  Pb  Pb2  3  0.0  0.0  0.36  1.0

Ge Ir Pb
IrPbGe crystallizes in the trigonal R3m space group. Ir(1) is bonded to three equivalent Pb(1) and four equivalent Ge(1) atoms to form IrGe4Pb3 hexagonal pyramids that share corners with three equivalent Ge(1)Ir4Pb3 hexagonal pyramids, corners with six equivalent Ir(1)Ge4Pb3 hexagonal pyramids, edges with three equivalent Ge(1)Ir4Pb3 hexagonal pyramids, and edges with six equivalent Ir(1)Ge4Pb3 hexagonal pyramids. All Ir(1)-Pb(1) bond lengths are 2.69 Å. There are three shorter (2.75 Å) and one longer (3.14 Å) Ir(1)-Ge(1) bond length. Pb(1) is bonded in a hexagonal planar geometry to three equivalent Ir(1) and three equivalent Ge(1) atoms. All Pb(1)-Ge(1) bond lengths are 2.69 Å. Ge(1) is bonded to four equivalent Ir(1) and three equivalent Pb(1) atoms to form GeIr4Pb3 hexagonal pyramids that share corners with three equivalent Ir(1)Ge4Pb3 hexagonal pyramids, corners with six equivalent Ge(1)Ir4Pb3 hexagonal pyramids, edges with three equivalent Ir(1)Ge4Pb3 hexagonal pyramids, and edges with six equivalent Ge(1)Ir4Pb3 hexagonal pyramids.