data_[Mn8Nb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  Nb  1.6000  1.4500  0.8200
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [4.8180]
_cell_length_b [4.8180]
_cell_length_c [7.9015]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [Mn2Nb]
_chemical_formula_sum '[Mn8 Nb4]'
_cell_volume [158.8432]
_cell_formula_units_Z [4]
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
[
  Mn  Mn0  6  0.1713  0.3427  0.2500  1.0
  Mn  Mn1  2  0.0000  0.0000  0.0000  1.0
  Nb  Nb2  4  0.3333  0.6667  0.5621  1.0
]