data_Ag2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.12
_cell_length_b   8.12
_cell_length_c   8.12
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2C
_chemical_formula_sum   'Ag16 C8'
_cell_volume   378.08
_cell_formula_units_Z   8
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  0.43  0.3  0.3  1.0
  Ag  Ag1  1  0.3  0.43  0.3  1.0
  Ag  Ag2  1  0.43  0.43  0.43  1.0
  Ag  Ag3  1  0.3  0.3  0.43  1.0
  Ag  Ag4  1  0.61  0.61  0.55  1.0
  Ag  Ag5  1  0.67  0.61  0.61  1.0
  Ag  Ag6  1  0.61  0.67  0.61  1.0
  Ag  Ag7  1  0.61  0.55  0.61  1.0
  Ag  Ag8  1  0.55  0.61  0.61  1.0
  Ag  Ag9  1  0.61  0.61  0.67  1.0
  Ag  Ag10  1  0.74  0.74  0.8  1.0
  Ag  Ag11  1  0.68  0.74  0.74  1.0
  Ag  Ag12  1  0.74  0.68  0.74  1.0
  Ag  Ag13  1  0.74  0.8  0.74  1.0
  Ag  Ag14  1  0.8  0.74  0.74  1.0
  Ag  Ag15  1  0.74  0.74  0.68  1.0
  C  C16  1  0.28  0.28  0.45  1.0
  C  C17  1  0.45  0.45  0.45  1.0
  C  C18  1  0.28  0.45  0.28  1.0
  C  C19  1  0.45  0.28  0.28  1.0
  C  C20  1  0.32  0.32  0.89  1.0
  C  C21  1  0.89  0.89  0.89  1.0
  C  C22  1  0.32  0.89  0.32  1.0
  C  C23  1  0.89  0.32  0.32  1.0

data_Ag2C
_symmetry_space_group_name_H-M   R3m
_cell_length_a   8.12
_cell_length_b   8.12
_cell_length_c   19.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Ag2C
_chemical_formula_sum   'Ag48 C24'
_cell_volume   1134.24
_cell_formula_units_Z   24
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  9  0.02  0.04  0.37  1.0
  Ag  Ag1  9  0.02  0.04  0.24  1.0
  Ag  Ag2  9  0.04  0.02  0.28  1.0
  Ag  Ag3  9  0.04  0.02  0.41  1.0
  Ag  Ag4  9  0.04  0.09  0.65  1.0
  Ag  Ag5  3  0.0  0.0  0.57  1.0
  C  C6  9  0.06  0.11  0.66  1.0
  C  C7  9  0.19  0.38  0.49  1.0
  C  C8  3  0.0  0.0  0.11  1.0
  C  C9  3  0.0  0.0  0.55  1.0

Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag Ag C C C C C C C C