data_[Be4H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [2.4120]
_cell_length_b [9.8908]
_cell_length_c [3.8850]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [BeH2]
_chemical_formula_sum '[Be4 H8]'
_cell_volume [92.6840]
_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  4  0.0000  0.4261  0.8521  1.0
  H  H1  4  0.0000  0.1520  0.2715  1.0
  H  H2  4  0.0000  0.4391  0.2215  1.0
]