data_[Rb3Nb9Zn12O36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Nb  1.6000  1.4500  0.8200
  Zn  1.6500  1.3500  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R32]
_cell_length_a [11.3777]
_cell_length_b [11.3777]
_cell_length_c [7.6386]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [155]
_chemical_formula_structural [RbNb3Zn4O12]
_chemical_formula_sum '[Rb3 Nb9 Zn12 O36]'
_cell_volume [856.3584]
_cell_formula_units_Z [3]
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
[
  Rb  Rb0  3  0.0000  0.0000  0.0000  1.0
  Nb  Nb1  9  0.0000  0.5557  0.0000  1.0
  Zn  Zn2  9  0.0000  0.4444  0.5000  1.0
  Zn  Zn3  3  0.0000  0.0000  0.5000  1.0
  O  O4  18  0.0618  0.2350  0.1982  1.0
  O  O5  9  0.0000  0.6095  0.5000  1.0
  O  O6  9  0.0000  0.8316  0.5000  1.0
]