data_HfMnPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.71
_cell_length_b   4.71
_cell_length_c   3.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfMnPb
_chemical_formula_sum   'Hf1 Mn1 Pb1'
_cell_volume   60.58
_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
  Hf  Hf0  1  0.36  0.36  0.57  1.0
  Mn  Mn1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.0  0.72  0.0  1.0

data_HfMnPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.15
_cell_length_b   4.71
_cell_length_c   4.71
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfMnPb
_chemical_formula_sum   'Hf1 Mn1 Pb1'
_cell_volume   60.58
_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
  Hf  Hf0  1  0.57  0.36  0.36  1.0
  Mn  Mn1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  -0.0  0.0  0.72  1.0

Hf Mn Pb
Hf Mn Pb 0 1 o o o 0 1 o o + 1 2 o - o 
HfMnPb crystallizes in the triclinic P1 space group. Hf(1) is bonded in a 6-coordinate geometry to two equivalent Mn(1) and four equivalent Pb(1) atoms. There is one shorter (2.16 Å) and one longer (2.48 Å) Hf(1)-Mn(1) bond length. There are a spread of Hf(1)-Pb(1) bond distances ranging from 2.95-3.44 Å. Mn(1) is bonded in a distorted single-bond geometry to two equivalent Hf(1) and one Pb(1) atom. The Mn(1)-Pb(1) bond length is 1.32 Å. Pb(1) is bonded in a single-bond geometry to four equivalent Hf(1) and one Mn(1) atom.