data_[K1Rb7O3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [8.4685]
_cell_length_b [8.4685]
_cell_length_c [7.8989]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [KRb7O3]
_chemical_formula_sum '[K1 Rb7 O3]'
_cell_volume [490.5850]
_cell_formula_units_Z [1]
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  0.0298  0.5149  0.5959  1
  Rb  Rb1  3  0.3039  0.1519  0.9671  1
  K  K2  1  0.0000  0.0000  0.6174  1
  Rb  Rb3  1  0.3333  0.6667  0.9664  1
  O  O4  3  0.1654  0.3307  0.7807  1
]