data_YSi2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.57
_cell_length_b   5.57
_cell_length_c   5.8
_cell_angle_alpha   118.25
_cell_angle_beta   118.25
_cell_angle_gamma   39.23
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YSi2Pb
_chemical_formula_sum   'Y1 Si2 Pb1'
_cell_volume   98.37
_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
  Y  Y3  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.14  0.0  0.38  1.0
  Si  Si2  1  0.44  0.0  0.63  1.0
  Pb  Pb0  1  0.79  0.0  0.51  1.0

data_YSi2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.74
_cell_length_b   5.57
_cell_length_c   5.8
_cell_angle_alpha   118.25
_cell_angle_beta   90.0
_cell_angle_gamma   109.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YSi2Pb
_chemical_formula_sum   'Y1 Si2 Pb1'
_cell_volume   98.37
_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
  Y  Y0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.0  0.56  0.37  1.0
  Si  Si2  1  0.0  0.86  0.62  1.0
  Pb  Pb3  1  0.0  0.21  0.49  1.0

Y Si Si Pb