data_[Sr2Ca2Cd4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.9291]
_cell_length_b [5.6669]
_cell_length_c [11.3624]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [SrCaCd2]
_chemical_formula_sum '[Sr2 Ca2 Cd4]'
_cell_volume [252.9900]
_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
[
  Sr  Sr0  2  0.0000  0.0000  0.5202  1.0
  Ca  Ca1  2  0.0000  0.5000  0.7251  1.0
  Cd  Cd2  2  0.0000  0.0000  0.9766  1.0
  Cd  Cd3  2  0.0000  0.5000  0.2780  1.0
]