data_SrSi2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.62
_cell_length_b   5.62
_cell_length_c   6.13
_cell_angle_alpha   114.98
_cell_angle_beta   114.98
_cell_angle_gamma   39.99
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSi2Pb
_chemical_formula_sum   'Sr1 Si2 Pb1'
_cell_volume   111.13
_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
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.95  0.0  0.45  1.0
  Si  Si2  1  0.85  0.0  0.03  1.0
  Pb  Pb0  1  0.9  0.0  0.74  1.0

data_SrSi2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.84
_cell_length_b   5.62
_cell_length_c   6.13
_cell_angle_alpha   114.98
_cell_angle_beta   90.0
_cell_angle_gamma   109.99
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSi2Pb
_chemical_formula_sum   'Sr1 Si2 Pb1'
_cell_volume   111.13
_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
  Sr  Sr0  1  0.0  0.0  0.0  1.0
  Si  Si1  1  0.0  0.05  0.55  1.0
  Si  Si2  1  0.0  0.15  0.97  1.0
  Pb  Pb3  1  0.0  0.1  0.26  1.0

Sr Si Si Pb