data_[Ag8C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.6400]
_cell_length_b [2.6811]
_cell_length_c [7.0533]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.1822]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ag2C]
_chemical_formula_sum '[Ag8 C4]'
_cell_volume [176.7429]
_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
[
  Ag  Ag0  4  0.0525  0.5000  0.2070  1
  Ag  Ag1  4  0.1474  0.0000  0.5924  1
  C  C2  4  0.2307  0.5000  0.0169  1
]