data_[Ba2Ca4Bi4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Ca  1.0000  1.8000  1.1400
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.5604]
_cell_length_b [19.0755]
_cell_length_c [4.5653]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [BaCa2Bi2O7]
_chemical_formula_sum '[Ba2 Ca4 Bi4 O14]'
_cell_volume [397.1463]
_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
[
  Ba  Ba0  2  0.0000  0.0000  0.9806  1
  Ca  Ca1  4  0.0000  0.2502  0.5002  1
  Bi  Bi2  4  0.0000  0.3864  0.9973  1
  O  O3  4  0.0000  0.1169  0.5024  1
  O  O4  4  0.0000  0.2685  0.0003  1
  O  O5  4  0.0000  0.3830  0.5013  1
  O  O6  2  0.0000  0.5000  0.0168  1
]