data_[Mn12Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.0867]
_cell_length_b [7.7023]
_cell_length_c [19.9929]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [MnSe]
_chemical_formula_sum '[Mn12 Se12]'
_cell_volume [629.3156]
_cell_formula_units_Z [12]
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  8  0.0000  0.3432  0.6127  1
  Mn  Mn1  4  0.0000  0.3809  0.2500  1
  Se  Se2  8  0.0000  0.0227  0.5931  1
  Se  Se3  4  0.0000  0.3003  0.7500  1
]