data_[Rb2Ge2Pb2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ge  2.0100  1.2500  0.7700
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.5143]
_cell_length_b [4.7105]
_cell_length_c [10.0918]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.4809]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbGePbSe3]
_chemical_formula_sum '[Rb2 Ge2 Pb2 Se6]'
_cell_volume [441.5951]
_cell_formula_units_Z [2]
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
[
  Rb  Rb0  2  0.1788  0.2500  0.2058  1.0
  Ge  Ge1  2  0.1020  0.2500  0.6000  1.0
  Pb  Pb2  2  0.3709  0.7500  0.8645  1.0
  Se  Se3  2  0.1150  0.2500  0.8350  1.0
  Se  Se4  2  0.1651  0.7500  0.5228  1.0
  Se  Se5  2  0.4299  0.7500  0.1509  1.0
]