data_MgCoPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.82
_cell_length_b   4.53
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgCoPb2
_chemical_formula_sum   'Mg1 Co1 Pb2'
_cell_volume   86.54
_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
  Mg  Mg1  1  0.0  0.0  0.0  1.0
  Co  Co0  1  0.0  0.26  0.5  1.0
  Pb  Pb2  1  0.91  0.0  0.5  1.0
  Pb  Pb3  1  0.91  0.26  0.0  1.0

data_MgCoPb2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.82
_cell_length_b   5.0
_cell_length_c   4.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   MgCoPb2
_chemical_formula_sum   'Mg1 Co1 Pb2'
_cell_volume   86.54
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Co  Co1  1  -0.0  0.5  0.26  1.0
  Pb  Pb2  1  0.91  0.0  0.26  1.0
  Pb  Pb3  1  0.91  0.5  0.0  1.0

Mg Co Pb Pb
Mg Co Pb Pb 0 3 - o o 1 2 - o o 
PbMg1PbCo crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one PbCo cluster and one PbMg1 cluster. In the PbCo cluster, Co(1) is bonded in a single-bond geometry to one Pb(1) atom. The Co(1)-Pb(1) bond length is 1.24 Å. Pb(1) is bonded in a distorted single-bond geometry to one Co(1) atom. In the PbMg1 cluster, Mg(1) is bonded in a single-bond geometry to one Pb(2) atom. The Mg(1)-Pb(2) bond length is 1.24 Å. Pb(2) is bonded in a single-bond geometry to one Mg(1) atom.