data_[Cu4Tc4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  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 [7.6852]
_cell_length_b [9.2236]
_cell_length_c [6.8922]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3593]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [CuTcO5]
_chemical_formula_sum '[Cu4 Tc4 O20]'
_cell_volume [460.9339]
_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
[
  Cu  Cu0  4  0.0000  0.0000  0.0000  1
  Tc  Tc1  4  0.0000  0.3097  0.2500  1
  O  O2  8  0.0880  0.1960  0.0981  1
  O  O3  8  0.1751  0.4172  0.4056  1
  O  O4  4  0.0000  0.0554  0.7500  1
]