data_[Be4V4Cr4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  V  1.6300  1.3500  0.7775
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [5.9639]
_cell_length_b [8.1249]
_cell_length_c [6.9509]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.6925]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [BeVCrO5]
_chemical_formula_sum '[Be4 V4 Cr4 O20]'
_cell_volume [308.4242]
_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  0.3120  0.2500  1
  V  V1  4  0.0000  0.3610  0.7500  1
  Cr  Cr2  4  0.0000  0.0000  0.0000  1
  O  O3  8  0.1594  0.4502  0.4216  1
  O  O4  8  0.1600  0.1951  0.1667  1
  O  O5  4  0.0000  0.1078  0.7500  1
]