data_[Sm4Ag6]
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
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [12.9255]
_cell_length_b [3.2704]
_cell_length_c [19.7282]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Sm2Ag3]
_chemical_formula_sum '[Sm4 Ag6]'
_cell_volume [833.9322]
_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
[
  Sm  Sm0  2  0.1763  0.0000  0.4611  1
  Sm  Sm1  2  0.4102  0.5000  0.4981  1
  Ag  Ag2  2  0.0818  0.5000  0.5817  1
  Ag  Ag3  2  0.2699  0.0000  0.5994  1
  Ag  Ag4  2  0.3159  0.5000  0.3597  1
]