data_[Rb2Ho2Ge2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ho  1.2300  1.7500  1.0410
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.7509]
_cell_length_b [7.0785]
_cell_length_c [9.4942]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.1283]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbHoGeSe4]
_chemical_formula_sum '[Rb2 Ho2 Ge2 Se8]'
_cell_volume [431.1718]
_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  0.2489  0.2500  0.0582  1
  Ho  Ho1  2  0.2254  0.2500  0.5501  1
  Ge  Ge2  2  0.2242  0.7500  0.3352  1
  Se  Se3  4  0.0150  0.5085  0.7017  1
  Se  Se4  2  0.4283  0.7500  0.1748  1
  Se  Se5  2  0.4459  0.7500  0.5818  1
]