data_[Na6Mn6F18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mn  1.5500  1.4000  0.6483
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R-3c]
_cell_length_a [5.7857]
_cell_length_b [5.7857]
_cell_length_c [14.3064]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [167]
_chemical_formula_structural [NaMnF3]
_chemical_formula_sum '[Na6 Mn6 F18]'
_cell_volume [414.7312]
_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
[
  Na  Na0  6  0.0000  0.0000  0.2500  1.0
  Mn  Mn1  6  0.0000  0.0000  0.0000  1.0
  F  F2  18  0.0000  0.3917  0.2500  1.0
]