data_[Dy4Tm2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Tm  1.2500  1.7500  1.0950
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.9483]
_cell_length_b [4.0757]
_cell_length_c [7.1519]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.1656]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Dy2TmSe4]
_chemical_formula_sum '[Dy4 Tm2 Se8]'
_cell_volume [387.6612]
_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
[
  Dy  Dy0  4  0.2330  0.5000  0.7217  1.0
  Tm  Tm1  2  0.0000  0.0000  0.0000  1.0
  Se  Se2  4  0.1204  0.0000  0.4393  1.0
  Se  Se3  4  0.1326  0.5000  0.9874  1.0
]