data_LiYPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.55
_cell_length_b   3.55
_cell_length_c   8.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiYPb2
_chemical_formula_sum   'Li1 Y1 Pb2'
_cell_volume   107.11
_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
  Li  Li0  1  0.0  0.0  0.0  1.0
  Y  Y3  1  0.0  0.0  0.25  1.0
  Pb  Pb1  1  0.77  0.77  0.0  1.0
  Pb  Pb2  1  0.77  0.77  0.5  1.0

data_LiYPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.02
_cell_length_b   5.02
_cell_length_c   8.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiYPb2
_chemical_formula_sum   'Li2 Y2 Pb4'
_cell_volume   214.22
_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
  Li  Li0  2  0.0  0.0  0.0  1.0
  Y  Y1  2  0.0  0.0  0.25  1.0
  Pb  Pb2  2  0.27  0.5  0.0  1.0
  Pb  Pb3  2  0.27  0.5  0.5  1.0

Li Y Pb Pb
Li Y Pb Pb 0 2 - - o 0 1 o o o 1 2 - - o 1 3 - - o 