data_[Sr4Ca2Cu4Bi4O16]
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
  Cu  1.9000  1.3500  0.8200
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.7525]
_cell_length_b [3.7525]
_cell_length_c [31.8168]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Sr2CaCu2(BiO4)2]
_chemical_formula_sum '[Sr4 Ca2 Cu4 Bi4 O16]'
_cell_volume [448.0097]
_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  4  0.0000  0.0000  0.1079  1.0
  Ca  Ca1  2  0.0000  0.0000  0.0000  1.0
  Cu  Cu2  4  0.0000  0.0000  0.4520  1.0
  Bi  Bi3  4  0.0000  0.0000  0.3019  1.0
  O  O4  8  0.0000  0.5000  0.0503  1.0
  O  O5  4  0.0000  0.0000  0.1970  1.0
  O  O6  4  0.0000  0.0000  0.3669  1.0
]