data_[Rb2Li2Zn2Pb2Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Li  0.9800  1.4500  0.9000
  Zn  1.6500  1.3500  0.8800
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.9158]
_cell_length_b [4.0835]
_cell_length_c [17.2728]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [RbLiZnPbSe]
_chemical_formula_sum '[Rb2 Li2 Zn2 Pb2 Se2]'
_cell_volume [276.1973]
_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  0.0000  0.5000  0.6852  1
  Li  Li1  2  0.0000  0.0000  0.9862  1
  Zn  Zn2  2  0.0000  0.0000  0.4720  1
  Pb  Pb3  2  0.0000  0.5000  0.3509  1
  Se  Se4  2  0.0000  0.5000  0.0675  1
]