data_[Tb4Mg4Tc4]
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
  Tc  1.9000  1.3500  0.7417
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.2903]
_cell_length_b [4.3240]
_cell_length_c [5.4027]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.9004]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbMgTc]
_chemical_formula_sum '[Tb4 Mg4 Tc4]'
_cell_volume [282.8433]
_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
[
  Tb  Tb0  4  0.1322  0.0000  0.3364  1
  Mg  Mg1  4  0.0763  0.5000  0.7804  1
  Tc  Tc2  4  0.2239  0.0000  0.8970  1
]