data_[Na8Tc4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tc  1.9000  1.3500  0.7417
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.4273]
_cell_length_b [9.3962]
_cell_length_c [5.6226]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0994]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2TcO3]
_chemical_formula_sum '[Na8 Tc4 O12]'
_cell_volume [270.9440]
_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  0.3424  0.5000  1
  Na  Na1  2  0.0000  0.0000  0.5000  1
  Na  Na2  2  0.0000  0.5000  0.0000  1
  Tc  Tc3  4  0.0000  0.1674  0.0000  1
  O  O4  8  0.2456  0.1827  0.7878  1
  O  O5  4  0.2076  0.0000  0.2124  1
]