data_[Rb2Ho2Si2Se8]
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
  Si  1.9000  1.1000  0.5400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6639]
_cell_length_b [7.0070]
_cell_length_c [9.4463]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2011]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbHoSiSe4]
_chemical_formula_sum '[Rb2 Ho2 Si2 Se8]'
_cell_volume [419.0165]
_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  0.2544  0.2500  0.0603  1.0
  Ho  Ho1  2  0.2272  0.2500  0.5492  1.0
  Si  Si2  2  0.2214  0.7500  0.3349  1.0
  Se  Se3  4  0.0094  0.5035  0.7033  1.0
  Se  Se4  2  0.4184  0.7500  0.1780  1.0
  Se  Se5  2  0.4319  0.7500  0.5756  1.0
]