data_CrPb5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.15
_cell_length_b   6.15
_cell_length_c   5.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrPb5
_chemical_formula_sum   'Cr1 Pb5'
_cell_volume   193.9
_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  Cr0  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.07  0.78  0.0  1.0
  Pb  Pb2  1  0.0  0.55  0.0  1.0
  Pb  Pb3  1  0.46  0.66  0.96  1.0
  Pb  Pb4  1  0.54  0.66  0.96  1.0
  Pb  Pb5  1  0.07  0.0  0.96  1.0

data_CrPb5
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.92
_cell_length_b   6.15
_cell_length_c   6.15
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrPb5
_chemical_formula_sum   'Cr1 Pb5'
_cell_volume   193.9
_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  Cr0  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.0  0.0  0.55  1.0
  Pb  Pb2  1  0.0  0.07  0.78  1.0
  Pb  Pb3  1  0.96  0.07  0.0  1.0
  Pb  Pb4  1  0.96  0.46  0.66  1.0
  Pb  Pb5  1  0.96  0.54  0.66  1.0

Cr Pb Pb Pb Pb Pb
CrPb5 is Hg_xSn structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CrPb5 cluster. Cr(1) is bonded in a single-bond geometry to one Pb(1), one Pb(4), and one Pb(5) atom. The Cr(1)-Pb(1) bond length is 1.66 Å. The Cr(1)-Pb(4) bond length is 2.56 Å. The Cr(1)-Pb(5) bond length is 0.52 Å. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 3-coordinate geometry to one Cr(1), one Pb(2), and one Pb(5) atom. The Pb(1)-Pb(2) bond length is 1.22 Å. The Pb(1)-Pb(5) bond length is 1.40 Å. In the second Pb site, Pb(2) is bonded in a 1-coordinate geometry to one Pb(1) atom. In the third Pb site, Pb(3) is bonded in a single-bond geometry to one Pb(4) atom. The Pb(3)-Pb(4) bond length is 0.46 Å. In the fourth Pb site, Pb(4) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one Pb(3) atom. In the fifth Pb site, Pb(5) is bonded in a single-bond geometry to one Cr(1) and one Pb(1) atom.