data_[Na2Ho2Fe2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ho  1.2300  1.7500  1.0410
  Fe  1.8300  1.4000  0.8525
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.1119]
_cell_length_b [3.9450]
_cell_length_c [9.6705]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.8115]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaHoFeSe3]
_chemical_formula_sum '[Na2 Ho2 Fe2 Se6]'
_cell_volume [297.7635]
_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
[
  Na  Na0  2  0.2760  0.7500  0.2354  1
  Ho  Ho1  2  0.1754  0.2500  0.6478  1
  Fe  Fe2  2  0.4289  0.7500  0.9142  1
  Se  Se3  2  0.0703  0.2500  0.3454  1
  Se  Se4  2  0.2622  0.2500  0.9626  1
  Se  Se5  2  0.4298  0.7500  0.6644  1
]