data_[Na4Si2Rh4O12]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.2120]
_cell_length_b [8.9357]
_cell_length_c [5.7208]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.9680]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Si(RhO3)2]
_chemical_formula_sum '[Na4 Si2 Rh4 O12]'
_cell_volume [251.9668]
_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  4  0.0000  0.1743  0.0000  1.0
  Si  Si1  2  0.0000  0.0000  0.5000  1.0
  Rh  Rh2  4  0.0000  0.3344  0.5000  1.0
  O  O3  8  0.2168  0.1525  0.6848  1.0
  O  O4  4  0.2249  0.0000  0.3150  1.0
]