data_[Ac4Cr4Ag8O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cr  1.6600  1.4000  0.9400
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [7.5883]
_cell_length_b [8.7540]
_cell_length_c [7.4611]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [AcCr(AgO2)2]
_chemical_formula_sum '[Ac4 Cr4 Ag8 O16]'
_cell_volume [495.6317]
_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
[
  Ac  Ac0  4  0.0000  0.0000  0.9539  1
  Cr  Cr1  4  0.0000  0.0000  0.4835  1
  Ag  Ag2  8  0.2500  0.2500  0.2327  1
  O  O3  8  0.0000  0.2169  0.4165  1
  O  O4  8  0.2059  0.0000  0.6320  1
]