data_[Sm4Ag8Cl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.2057]
_cell_length_b [7.3755]
_cell_length_c [10.0479]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.7818]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SmAg2Cl5]
_chemical_formula_sum '[Sm4 Ag8 Cl20]'
_cell_volume [902.2953]
_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  0.0000  0.5000  0.0000  1
  Ag  Ag1  8  0.1289  0.0643  0.1876  1
  Cl  Cl2  8  0.0780  0.1759  0.4485  1
  Cl  Cl3  8  0.2087  0.3802  0.1390  1
  Cl  Cl4  4  0.0000  0.3525  0.7500  1
]