data_[Ca2Ta4Pt2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Ta  1.5000  1.4500  0.8200
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [6.7613]
_cell_length_b [6.9293]
_cell_length_c [6.3730]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [CaTa2PtO8]
_chemical_formula_sum '[Ca2 Ta4 Pt2 O16]'
_cell_volume [298.5805]
_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
[
  Ca  Ca0  2  0.0000  0.0000  0.5000  1
  Ta  Ta1  4  0.0000  0.5000  0.2512  1
  Pt  Pt2  2  0.0000  0.0000  0.0000  1
  O  O3  8  0.2139  0.0000  0.2214  1
  O  O4  4  0.0000  0.3011  0.0000  1
  O  O5  4  0.0000  0.3234  0.5000  1
]