data_[Sm1Y2Ag1C1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
  Ag  1.9300  1.6000  1.0867
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [4.8486]
_cell_length_b [4.8486]
_cell_length_c [5.1713]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [SmY2AgC]
_chemical_formula_sum '[Sm1 Y2 Ag1 C1]'
_cell_volume [121.5704]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.4928  1
  Y  Y1  2  0.0000  0.5000  0.9956  1
  Ag  Ag2  1  0.5000  0.5000  0.5046  1
  C  C3  1  0.0000  0.0000  0.0113  1
]