data_[Ce2Tm8Se10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  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 [13.5317]
_cell_length_b [4.0253]
_cell_length_c [9.9682]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.8044]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CeTm4Se5]
_chemical_formula_sum '[Ce2 Tm8 Se10]'
_cell_volume [471.1445]
_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
[
  Ce  Ce0  2  0.0000  0.0000  0.0000  1
  Tm  Tm1  4  0.0970  0.5000  0.3931  1
  Tm  Tm2  4  0.2052  0.0000  0.8012  1
  Se  Se3  4  0.1064  0.5000  0.8940  1
  Se  Se4  4  0.2058  0.0000  0.3115  1
  Se  Se5  2  0.0000  0.0000  0.5000  1
]