data_[Rb2Er2Be2Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Er  1.2400  1.7500  1.0300
  Be  1.5700  1.0500  0.5900
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [10.2002]
_cell_length_b [4.2683]
_cell_length_c [10.3893]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.3323]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbErBeTe3]
_chemical_formula_sum '[Rb2 Er2 Be2 Te6]'
_cell_volume [421.3360]
_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  0.2090  0.7500  0.2383  1.0
  Er  Er1  2  0.3305  0.2500  0.8589  1.0
  Be  Be2  2  0.0794  0.7500  0.6039  1.0
  Te  Te3  2  0.1132  0.7500  0.8492  1.0
  Te  Te4  2  0.1803  0.2500  0.5338  1.0
  Te  Te5  2  0.4704  0.2500  0.1716  1.0
]