data_FeNiAgPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.52
_cell_length_b   4.52
_cell_length_c   4.52
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeNiAgPb
_chemical_formula_sum   'Fe1 Ni1 Ag1 Pb1'
_cell_volume   65.3
_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
  Fe  Fe1  1  0.0  0.0  0.0  1.0
  Ni  Ni2  1  0.2  0.2  0.2  1.0
  Ag  Ag0  1  0.6  0.6  0.6  1.0
  Pb  Pb3  1  0.79  0.79  0.79  1.0

data_FeNiAgPb
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.52
_cell_length_b   4.52
_cell_length_c   11.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   FeNiAgPb
_chemical_formula_sum   'Fe3 Ni3 Ag3 Pb3'
_cell_volume   195.89
_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
  Fe  Fe0  3  0.0  0.0  0.0  1.0
  Ni  Ni1  3  0.0  0.0  0.8  1.0
  Ag  Ag2  3  0.0  0.0  0.4  1.0
  Pb  Pb3  3  0.0  0.0  0.21  1.0

Fe Ni Ag Pb
Fe Ni Ag Pb 0 3 - - - 0 2 - - o 0 2 - o - 0 2 o - - 0 1 o o o 0 1 o o - 0 1 - o o 0 1 o - o 1 3 - - o 1 3 - o - 1 3 o - - 1 2 - o o 1 2 o - o 1 2 o o - 2 3 o - o 2 3 - o o 2 3 o o - 2 3 o o o 
FeNiAgPb crystallizes in the trigonal R3m space group. Fe(1) is bonded in a 2-coordinate geometry to four equivalent Ni(1) and one Pb(1) atom. There is one shorter (2.17 Å) and three longer (3.02 Å) Fe(1)-Ni(1) bond lengths. The Fe(1)-Pb(1) bond length is 2.28 Å. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Fe(1), three equivalent Ag(1), and three equivalent Pb(1) atoms. All Ni(1)-Ag(1) bond lengths are 2.72 Å. All Ni(1)-Pb(1) bond lengths are 2.72 Å. Ag(1) is bonded in a distorted single-bond geometry to three equivalent Ni(1) and one Pb(1) atom. The Ag(1)-Pb(1) bond length is 2.17 Å. Pb(1) is bonded in a 2-coordinate geometry to one Fe(1), three equivalent Ni(1), and one Ag(1) atom.