data_Be2SnPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.47
_cell_length_b   4.47
_cell_length_c   5.68
_cell_angle_alpha   108.78
_cell_angle_beta   108.78
_cell_angle_gamma   51.93
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2SnPb
_chemical_formula_sum   'Be2 Sn1 Pb1'
_cell_volume   83.26
_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
  Be  Be0  1  0.34  0.0  0.78  1.0
  Be  Be1  1  0.66  0.0  0.52  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  1.0  0.0  0.65  1.0

data_Be2SnPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.91
_cell_length_b   4.47
_cell_length_c   5.68
_cell_angle_alpha   108.78
_cell_angle_beta   90.0
_cell_angle_gamma   115.96
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2SnPb
_chemical_formula_sum   'Be2 Sn1 Pb1'
_cell_volume   83.26
_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
  Be  Be0  1  0.0  0.34  0.48  1.0
  Be  Be1  1  0.0  0.66  0.22  1.0
  Sn  Sn2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.0  0.35  1.0

Be Be Sn Pb