# A2 bcc voids (nnd=3)
data_nolabel
_cell_length_a     3.4641
_cell_length_b     3.4641
_cell_length_c     3.4641
_cell_angle_alpha  90
_cell_angle_beta   90
_cell_angle_gamma  90
_symmetry_space_group_name_H-M  'Im-3m'
loop_
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_Wyckoff_symbol
_atom_site_description
  Li   0   0    0   2a  'atom'
  H    .5  .25  0  12d  '4t void'
  H    .5  .5   0   6b  '6by void'