data_[Rb4Sr2Zn2Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  Zn  1.6500  1.3500  0.8800
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.7397]
_cell_length_b [10.1815]
_cell_length_c [9.2550]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Rb2SrZnSb2]
_chemical_formula_sum '[Rb4 Sr2 Zn2 Sb4]'
_cell_volume [446.6167]
_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
[
  Rb  Rb0  2  0.0000  0.3298  0.1469  1.0
  Rb  Rb1  2  0.5000  0.4078  0.4725  1.0
  Sr  Sr2  2  0.0000  0.0306  0.5227  1.0
  Zn  Zn3  2  0.5000  0.1712  0.7883  1.0
  Sb  Sb4  2  0.0000  0.3090  0.7615  1.0
  Sb  Sb5  2  0.5000  0.0916  0.2627  1.0
]