data_[Be3Ag3C6O18]
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
  C  2.5500  0.7000  0.3000
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [4.6300]
_cell_length_b [4.6300]
_cell_length_c [15.3835]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [BeAg(CO3)2]
_chemical_formula_sum '[Be3 Ag3 C6 O18]'
_cell_volume [285.5920]
_cell_formula_units_Z [3]
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  3  -0.0000  0.0000  0.5000  1
  Ag  Ag1  3  0.0000  0.0000  0.0000  1
  C  C2  6  0.0000  0.0000  0.2361  1
  O  O3  18  0.0308  0.6129  0.9045  1
]