data_[Ni4Ag4As2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.1393]
_cell_length_b [8.9915]
_cell_length_c [6.0878]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.0717]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ni2Ag2AsO6]
_chemical_formula_sum '[Ni4 Ag4 As2 O12]'
_cell_volume [280.9153]
_cell_formula_units_Z [2]
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
[
  Ni  Ni0  4  0.0000  0.3364  0.5000  1.0
  Ag  Ag1  4  0.0000  0.1587  0.0000  1.0
  As  As2  2  0.0000  0.0000  0.5000  1.0
  O  O3  8  0.1423  0.1553  0.3309  1.0
  O  O4  4  0.1910  0.5000  0.3346  1.0
]