data_MnCoPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.86
_cell_length_b   4.86
_cell_length_c   4.86
_cell_angle_alpha   120.76
_cell_angle_beta   120.76
_cell_angle_gamma   88.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnCoPb2
_chemical_formula_sum   'Mn1 Co1 Pb2'
_cell_volume   80.18
_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
  Mn  Mn1  1  0.0  0.0  0.0  1.0
  Co  Co0  1  0.0  0.0  0.48  1.0
  Pb  Pb2  1  0.4  0.0  0.74  1.0
  Pb  Pb3  1  0.0  0.4  0.74  1.0

data_MnCoPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.79
_cell_length_b   6.79
_cell_length_c   4.86
_cell_angle_alpha   90.0
_cell_angle_beta   134.34
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnCoPb2
_chemical_formula_sum   'Mn2 Co2 Pb4'
_cell_volume   160.35
_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
  Mn  Mn0  2  0.0  0.0  0.0  1.0
  Co  Co1  2  0.02  0.5  0.52  1.0
  Pb  Pb2  4  0.46  0.2  0.66  1.0

Mn Co Pb Pb
MnCoPb2 crystallizes in the monoclinic Cm space group. Mn(1) is bonded in a 6-coordinate geometry to two equivalent Co(1) and four equivalent Pb(1) atoms. There is one shorter (2.31 Å) and one longer (2.55 Å) Mn(1)-Co(1) bond length. There are two shorter (2.51 Å) and two longer (2.82 Å) Mn(1)-Pb(1) bond lengths. Co(1) is bonded in a 2-coordinate geometry to two equivalent Mn(1) and two equivalent Pb(1) atoms. Both Co(1)-Pb(1) bond lengths are 1.70 Å. Pb(1) is bonded in a 2-coordinate geometry to two equivalent Mn(1) and one Co(1) atom.