data_[Na3Mn3Sb6]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.6528]
_cell_length_b [3.6528]
_cell_length_c [25.5166]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [NaMnSb2]
_chemical_formula_sum '[Na3 Mn3 Sb6]'
_cell_volume [294.8468]
_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
[
  Na  Na0  3  0.0000  0.0000  0.5006  1.0
  Mn  Mn1  3  0.0000  0.0000  0.6664  1.0
  Sb  Sb2  3  0.0000  0.0000  0.0663  1.0
  Sb  Sb3  3  0.0000  0.0000  0.2667  1.0
]