data_AgC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.36
_cell_length_b   6.36
_cell_length_c   6.36
_cell_angle_alpha   147.47
_cell_angle_beta   147.47
_cell_angle_gamma   46.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgC2
_chemical_formula_sum   'Ag2 C4'
_cell_volume   74.2
_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
  Ag  Ag0  1  0.0  0.78  0.92  1.0
  Ag  Ag1  1  0.0  0.0  0.0  1.0
  C  C2  1  0.78  0.0  0.58  1.0
  C  C3  1  0.0  0.0  0.19  1.0
  C  C4  1  0.78  0.0  0.27  1.0
  C  C5  1  0.0  0.0  0.5  1.0

data_AgC2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.56
_cell_length_b   3.56
_cell_length_c   6.36
_cell_angle_alpha   106.26
_cell_angle_beta   106.26
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgC2
_chemical_formula_sum   'Ag2 C4'
_cell_volume   74.2
_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
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.14  0.92  0.14  1.0
  C  C2  1  0.19  0.19  0.19  1.0
  C  C3  1  0.27  0.49  0.49  1.0
  C  C4  1  0.5  0.5  0.5  1.0
  C  C5  1  0.58  0.79  0.79  1.0

Ag Ag C C C C