data_KC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.29
_cell_length_b   8.29
_cell_length_c   8.29
_cell_angle_alpha   150.88
_cell_angle_beta   150.59
_cell_angle_gamma   41.87
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KC
_chemical_formula_sum   'K2 C2'
_cell_volume   135.77
_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
  K  K2  1  0.0  0.16  0.89  1.0
  K  K3  1  0.08  0.95  0.85  1.0
  C  C0  1  0.08  0.05  0.89  1.0
  C  C1  1  0.0  0.05  0.85  1.0

data_KC
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.17
_cell_length_b   4.21
_cell_length_c   8.29
_cell_angle_alpha   104.71
_cell_angle_beta   104.56
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   KC
_chemical_formula_sum   'K2 C2'
_cell_volume   135.77
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  K  K0  2  0.06  0.91  0.96  1.0
  C  C1  2  0.02  0.98  0.02  1.0

K K C C