data_[Na8Ca4Tc4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  Tc  1.9000  1.3500  0.7417
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.1749]
_cell_length_b [8.8968]
_cell_length_c [6.9026]
_cell_angle_alpha [90.0000]
_cell_angle_beta [127.8317]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Na2CaTcO4]
_chemical_formula_sum '[Na8 Ca4 Tc4 O16]'
_cell_volume [445.0115]
_cell_formula_units_Z [4]
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
[
  Na  Na0  4  0.0000  0.5000  0.0000  1
  Na  Na1  4  0.2500  0.2500  0.0000  1
  Ca  Ca2  4  0.2500  0.2500  0.5000  1
  Tc  Tc3  4  0.0000  0.0000  0.0000  1
  O  O4  8  0.0152  0.2208  0.0372  1
  O  O5  8  0.2462  0.0041  0.6056  1
]