data_[Na2Si4Rh4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  Rh  2.2800  1.3500  0.7450
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.8138]
_cell_length_b [3.8138]
_cell_length_c [11.2968]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Na(SiRh)2]
_chemical_formula_sum '[Na2 Si4 Rh4]'
_cell_volume [164.3135]
_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  0.0000  0.0000  0.0000  1
  Si  Si1  4  0.0000  0.5000  0.2500  1
  Rh  Rh2  4  0.0000  0.0000  0.3762  1
]