data_[Rb2Ca2Sb1As1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Sb  2.0500  1.4500  0.8300
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [5.2750]
_cell_length_b [5.2750]
_cell_length_c [8.3362]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [Rb2Ca2SbAs]
_chemical_formula_sum '[Rb2 Ca2 Sb1 As1]'
_cell_volume [231.9556]
_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  0.6268  1
  Rb  Rb1  1  0.5000  0.5000  0.3661  1
  Ca  Ca2  2  0.0000  0.5000  0.0113  1
  Sb  Sb3  1  0.5000  0.5000  0.8025  1
  As  As4  1  0.0000  0.0000  0.1821  1
]