data_K2MnPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2MnPb
_chemical_formula_sum   'K2 Mn1 Pb1'
_cell_volume   127.08
_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
  K  K0  1  0.48  0.0  0.57  1.0
  K  K1  1  0.0  0.48  0.57  1.0
  Mn  Mn2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.48  0.48  0.0  1.0

data_K2MnPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.03
_cell_length_b   7.03
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K2MnPb
_chemical_formula_sum   'K4 Mn2 Pb2'
_cell_volume   254.16
_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
  K  K0  4  0.24  0.24  0.57  1.0
  Mn  Mn1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.48  0.0  0.0  1.0

K K Mn Pb
K2MnPb crystallizes in the monoclinic Cm space group. K(1) is bonded in a 12-coordinate geometry to four equivalent K(1), four equivalent Mn(1), and four equivalent Pb(1) atoms. There are a spread of K(1)-K(1) bond distances ranging from 3.40-3.62 Å. There are a spread of K(1)-Mn(1) bond distances ranging from 3.25-3.91 Å. There are a spread of K(1)-Pb(1) bond distances ranging from 3.25-3.91 Å. Mn(1) is bonded to eight equivalent K(1) and four equivalent Pb(1) atoms to form MnK8Pb4 cuboctahedra that share corners with twelve equivalent Mn(1)K8Pb4 cuboctahedra, edges with eight equivalent Pb(1)K8Mn4 cuboctahedra, faces with four equivalent Pb(1)K8Mn4 cuboctahedra, and faces with six equivalent Mn(1)K8Pb4 cuboctahedra. There are a spread of Mn(1)-Pb(1) bond distances ranging from 3.40-3.62 Å. Pb(1) is bonded to eight equivalent K(1) and four equivalent Mn(1) atoms to form distorted PbK8Mn4 cuboctahedra that share corners with twelve equivalent Pb(1)K8Mn4 cuboctahedra, edges with eight equivalent Mn(1)K8Pb4 cuboctahedra, faces with four equivalent Mn(1)K8Pb4 cuboctahedra, and faces with six equivalent Pb(1)K8Mn4 cuboctahedra.