data_KAl2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KAl2Pb
_chemical_formula_sum   'K1 Al2 Pb1'
_cell_volume   105.78
_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  K2  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.34  0.0  0.41  1.0
  Al  Al1  1  0.0  0.34  0.41  1.0
  Pb  Pb3  1  0.34  0.34  0.0  1.0

data_KAl2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.62
_cell_length_b   6.62
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KAl2Pb
_chemical_formula_sum   'K2 Al4 Pb2'
_cell_volume   211.56
_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  2  0.0  0.0  0.0  1.0
  Al  Al1  4  0.17  0.17  0.41  1.0
  Pb  Pb2  2  0.34  0.0  0.0  1.0

K Al Al Pb
K Al Al Pb 0 2 o o o 0 1 o o o 0 3 o o o 1 2 o o o 1 3 o o o 2 3 o o o 
KAl2Pb crystallizes in the monoclinic Cm space group. K(1) is bonded in a 1-coordinate geometry to six equivalent Al(1) and one Pb(1) atom. There are a spread of K(1)-Al(1) bond distances ranging from 2.55-3.66 Å. The K(1)-Pb(1) bond length is 2.26 Å. Al(1) is bonded in a 6-coordinate geometry to three equivalent K(1), one Al(1), and two equivalent Pb(1) atoms. The Al(1)-Al(1) bond length is 2.26 Å. There is one shorter (2.55 Å) and one longer (3.26 Å) Al(1)-Pb(1) bond length. Pb(1) is bonded in a 1-coordinate geometry to one K(1) and four equivalent Al(1) atoms.