data_[Sm6Ag3C3]
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
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.7180]
_cell_length_b [3.7180]
_cell_length_c [22.7054]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Sm2AgC]
_chemical_formula_sum '[Sm6 Ag3 C3]'
_cell_volume [271.8193]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.7277  1.0
  Sm  Sm1  3  0.0000  0.0000  0.9387  1.0
  Ag  Ag2  3  0.0000  0.0000  0.5000  1.0
  C  C3  3  0.0000  0.0000  0.3339  1.0
]