data_[Be8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P6_3/mmc]
_cell_length_a [4.5785]
_cell_length_b [4.5785]
_cell_length_c [7.3171]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [194]
_chemical_formula_structural [Be2Ag]
_chemical_formula_sum '[Be8 Ag4]'
_cell_volume [132.8376]
_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
[
  Be  Be0  6  0.1642  0.3284  0.2500  1.0
  Be  Be1  2  0.0000  0.0000  0.0000  1.0
  Ag  Ag2  4  0.3333  0.6667  0.9409  1.0
]