data_[K4Rb2Tb2Mg2V4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Mg  1.3100  1.5000  0.8600
  V  1.6300  1.3500  0.7775
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [10.8091]
_cell_length_b [6.0702]
_cell_length_c [7.8792]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0925]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K2RbTbMgV2O8]
_chemical_formula_sum '[K4 Rb2 Tb2 Mg2 V4 O16]'
_cell_volume [514.0620]
_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
[
  K  K0  2  0.1528  0.5000  0.8090  1
  K  K1  2  0.3947  0.0000  0.1502  1
  Rb  Rb2  2  0.4404  0.5000  0.5468  1
  Tb  Tb3  2  0.4964  0.5000  0.9894  1
  Mg  Mg4  2  0.1708  0.0000  0.3423  1
  V  V5  2  0.1942  0.5000  0.2631  1
  V  V6  2  0.3092  0.0000  0.7362  1
  O  O7  4  0.1092  0.2367  0.1878  1
  O  O8  4  0.3992  0.2351  0.8337  1
  O  O9  2  0.1588  0.0000  0.8159  1
  O  O10  2  0.1859  0.5000  0.4810  1
  O  O11  2  0.3142  0.0000  0.5049  1
  O  O12  2  0.3428  0.5000  0.1763  1
]