data_[Rb1Nd1Cu2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Nd  1.1400  1.8500  1.2765
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.9367]
_cell_length_b [3.9367]
_cell_length_c [7.6445]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [RbNd(CuO2)2]
_chemical_formula_sum '[Rb1 Nd1 Cu2 O4]'
_cell_volume [118.4712]
_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
[
  Rb  Rb0  1  0.0000  0.0000  0.5000  1.0
  Nd  Nd1  1  0.0000  0.0000  0.0000  1.0
  Cu  Cu2  2  0.5000  0.5000  0.2142  1.0
  O  O3  4  0.0000  0.5000  0.1989  1.0
]