data_[Ca4Be4Ru4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Be  1.5700  1.0500  0.5900
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.4604]
_cell_length_b [8.6669]
_cell_length_c [7.1589]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.7635]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [CaBeRuO5]
_chemical_formula_sum '[Ca4 Be4 Ru4 O20]'
_cell_volume [363.9844]
_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
[
  Ca  Ca0  4  0.0000  0.3400  0.2500  1.0
  Be  Be1  4  0.0000  0.3089  0.7500  1.0
  Ru  Ru2  4  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.1028  0.2054  0.6178  1.0
  O  O4  8  0.1903  0.4324  0.9109  1.0
  O  O5  4  0.0000  0.0757  0.2500  1.0
]