data_[Ho18Sn6O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [9.7369]
_cell_length_b [9.7369]
_cell_length_c [11.0687]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Ho3SnO6]
_chemical_formula_sum '[Ho18 Sn6 O36]'
_cell_volume [908.7896]
_cell_formula_units_Z [6]
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
[
  Ho  Ho0  18  0.0412  0.2661  0.7061  1.0
  Sn  Sn1  3  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  3  0.0000  0.0000  0.5000  1.0
  O  O3  18  0.0303  0.2419  0.9044  1.0
  O  O4  18  0.0305  0.1814  0.3798  1.0
]