data_[Sr2Ca2Os4O16]
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
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.3983]
_cell_length_b [5.3983]
_cell_length_c [11.8764]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [SrCa(OsO4)2]
_chemical_formula_sum '[Sr2 Ca2 Os4 O16]'
_cell_volume [346.0949]
_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  0.5000  0.2500  1
  Ca  Ca1  2  0.0000  0.0000  0.0000  1
  Os  Os2  2  0.0000  0.0000  0.5000  1
  Os  Os3  2  0.0000  0.5000  0.7500  1
  O  O4  8  0.1419  0.7448  0.8334  1
  O  O5  8  0.1563  0.2421  0.4209  1
]