data_[Sm4Sn4Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.7385]
_cell_length_b [4.6228]
_cell_length_c [8.3565]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.0029]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [SmSnTe3]
_chemical_formula_sum '[Sm4 Sn4 Te12]'
_cell_volume [699.2038]
_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
[
  Sm  Sm0  4  0.2192  0.0000  0.2495  1.0
  Sn  Sn1  4  0.0449  0.5000  0.6993  1.0
  Te  Te2  4  0.0362  0.0000  0.1733  1.0
  Te  Te3  4  0.1665  0.0000  0.5785  1.0
  Te  Te4  4  0.1670  0.5000  0.9904  1.0
]