data_[Rb3Co3As6O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Co  1.8800  1.3500  0.7683
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [5.5693]
_cell_length_b [5.5693]
_cell_length_c [19.0144]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [RbCo(AsO3)2]
_chemical_formula_sum '[Rb3 Co3 As6 O18]'
_cell_volume [510.7562]
_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
  Co  Co1  3  -0.0000  0.0000  0.5000  1
  As  As2  6  0.0000  0.0000  0.2415  1
  O  O3  18  0.0050  0.6094  0.8941  1
]