data_[Sr2Ce1Er1Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ce  1.1200  1.8500  1.0800
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.9027]
_cell_length_b [4.5637]
_cell_length_c [8.0647]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2633]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Sr2CeErSb4]
_chemical_formula_sum '[Sr2 Ce1 Er1 Sb4]'
_cell_volume [274.5721]
_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
[
  Sr  Sr0  1  0.0000  0.5000  0.5000  1.0
  Sr  Sr1  1  0.5000  0.0000  0.5000  1.0
  Ce  Ce2  1  0.0000  0.0000  0.0000  1.0
  Er  Er3  1  0.5000  0.5000  0.0000  1.0
  Sb  Sb4  2  0.2428  0.5000  0.2222  1.0
  Sb  Sb5  2  0.2620  0.0000  0.7787  1.0
]