data_[Tb4Mg2Cr4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Mg  1.3100  1.5000  0.8600
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.5694]
_cell_length_b [14.4076]
_cell_length_c [5.0469]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.3324]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Tb2MgCr2O8]
_chemical_formula_sum '[Tb4 Mg2 Cr4 O16]'
_cell_volume [369.4805]
_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
[
  Tb  Tb0  2  0.0000  0.1691  0.5000  1
  Tb  Tb1  2  0.0000  0.8464  0.0000  1
  Mg  Mg2  2  0.0000  0.5162  0.0000  1
  Cr  Cr3  2  0.0000  0.3199  0.0000  1
  Cr  Cr4  2  0.0000  0.6827  0.5000  1
  O  O5  4  0.1652  0.5945  0.4180  1
  O  O6  4  0.2039  0.4140  0.0104  1
  O  O7  4  0.2352  0.2840  0.4762  1
  O  O8  4  0.2401  0.7236  0.9600  1
]