data_[Sn2Rh18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Rh  2.2800  1.3500  0.7450
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [2.7583]
_cell_length_b [2.7583]
_cell_length_c [50.0948]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [SnRh9]
_chemical_formula_sum '[Sn2 Rh18]'
_cell_volume [381.1361]
_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
[
  Sn  Sn0  2  0.0000  0.5000  0.1392  1
  Rh  Rh1  2  0.0000  0.5000  0.2191  1
  Rh  Rh2  2  0.0000  0.5000  0.2942  1
  Rh  Rh3  2  0.0000  0.5000  0.3693  1
  Rh  Rh4  2  0.0000  0.5000  0.4441  1
  Rh  Rh5  2  0.0000  0.5000  0.5186  1
  Rh  Rh6  2  0.0000  0.5000  0.5933  1
  Rh  Rh7  2  0.0000  0.5000  0.6681  1
  Rh  Rh8  2  0.0000  0.5000  0.7435  1
  Rh  Rh9  2  0.0000  0.5000  0.8191  1
]