data_[Y1Er1Cr2As2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Cr  1.6600  1.4000  0.9400
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [4.0472]
_cell_length_b [4.0472]
_cell_length_c [8.6424]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [YErCr2(AsO)2]
_chemical_formula_sum '[Y1 Er1 Cr2 As2 O2]'
_cell_volume [141.5598]
_cell_formula_units_Z [1]
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
[
  Y  Y0  1  0.0000  0.0000  0.8801  1
  Er  Er1  1  0.5000  0.5000  0.1165  1
  Cr  Cr2  2  0.0000  0.5000  0.4994  1
  As  As3  1  0.0000  0.0000  0.3138  1
  As  As4  1  0.5000  0.5000  0.6866  1
  O  O5  2  0.0000  0.5000  0.0020  1
]