data_Ru2PbSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.31
_cell_length_b   8.31
_cell_length_c   8.31
_cell_angle_alpha   22.0
_cell_angle_beta   22.0
_cell_angle_gamma   22.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ru2PbSe
_chemical_formula_sum   'Ru2 Pb1 Se1'
_cell_volume   70.59
_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
  Ru  Ru1  1  0.0  0.0  0.3  1.0
  Ru  Ru2  1  0.0  0.0  0.01  1.0
  Pb  Pb0  1  0.0  0.0  0.16  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

data_Ru2PbSe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.49
_cell_length_b   3.17
_cell_length_c   8.31
_cell_angle_alpha   90.0
_cell_angle_beta   102.73
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ru2PbSe
_chemical_formula_sum   'Ru4 Pb2 Se2'
_cell_volume   141.19
_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
  Ru  Ru0  2  0.0  0.0  0.7  1.0
  Ru  Ru1  2  0.0  0.0  0.99  1.0
  Pb  Pb2  2  0.0  0.0  0.84  1.0
  Se  Se3  2  0.0  0.0  0.0  1.0

Ru Ru Pb Se