data_Co2AsPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.3
_cell_length_b   9.3
_cell_length_c   9.3
_cell_angle_alpha   159.0
_cell_angle_beta   159.0
_cell_angle_gamma   29.87
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Co2AsPb2
_chemical_formula_sum   'Co2 As1 Pb2'
_cell_volume   103.19
_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
  Co  Co1  1  0.0  0.69  0.49  1.0
  Co  Co2  1  0.69  0.0  0.49  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.0  0.16  1.0
  Pb  Pb4  1  0.0  0.0  0.81  1.0

data_Co2AsPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   9.3
_cell_angle_alpha   90.0
_cell_angle_beta   104.94
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Co2AsPb2
_chemical_formula_sum   'Co4 As2 Pb4'
_cell_volume   206.37
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Co  Co0  4  0.14  0.35  0.8  1.0
  As  As1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.16  0.0  0.16  1.0
  Pb  Pb3  2  0.31  0.5  0.81  1.0

Co Co As Pb Pb
Co2Pb2As crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Co2Pb2As clusters. Co(1) is bonded in a single-bond geometry to one Pb(2) atom. The Co(1)-Pb(2) bond length is 1.06 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a single-bond geometry to one As(1) atom. The Pb(1)-As(1) bond length is 1.48 Å. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to two equivalent Co(1) and one As(1) atom. The Pb(2)-As(1) bond length is 1.79 Å. As(1) is bonded in a linear geometry to one Pb(1) and one Pb(2) atom.