data_[Be4Ni4Se4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Ni  1.9100  1.3500  0.7400
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_12_12_1]
_cell_length_a [5.7915]
_cell_length_b [6.6137]
_cell_length_c [6.8328]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [19]
_chemical_formula_structural [BeNiSeO]
_chemical_formula_sum '[Be4 Ni4 Se4 O4]'
_cell_volume [261.7161]
_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  0.1533  0.4032  0.5125  1
  Ni  Ni1  4  0.0847  0.8320  0.4572  1
  Se  Se2  4  0.1975  0.8831  0.1074  1
  O  O3  4  0.2347  0.3981  0.0370  1
]