data_[Er16Co2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Co  1.8800  1.3500  0.7683
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [7.4112]
_cell_length_b [15.6655]
_cell_length_c [5.9316]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.2186]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Er8CoAg2]
_chemical_formula_sum '[Er16 Co2 Ag4]'
_cell_volume [582.6170]
_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
[
  Er  Er0  4  0.0029  0.8048  0.9832  1
  Er  Er1  4  0.2322  0.3889  0.2843  1
  Er  Er2  4  0.2658  0.1131  0.6491  1
  Er  Er3  2  0.2361  0.5000  0.7749  1
  Er  Er4  2  0.2755  0.0000  0.1456  1
  Co  Co5  2  0.0055  0.0000  0.2786  1
  Ag  Ag6  4  0.0074  0.2842  0.4837  1
]