data_KC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.86
_cell_length_b   5.86
_cell_length_c   7.52
_cell_angle_alpha   99.17
_cell_angle_beta   99.17
_cell_angle_gamma   26.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KC2
_chemical_formula_sum   'K2 C4'
_cell_volume   112.84
_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  K4  1  0.45  0.0  0.5  1.0
  K  K5  1  0.89  0.0  0.25  1.0
  C  C0  1  0.24  0.0  0.29  1.0
  C  C1  1  0.74  0.0  0.6  1.0
  C  C2  1  0.1  0.0  0.83  1.0
  C  C3  1  0.41  0.0  0.0  1.0

data_KC2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.67
_cell_length_b   5.86
_cell_length_c   7.52
_cell_angle_alpha   99.17
_cell_angle_beta   90.0
_cell_angle_gamma   103.15
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KC2
_chemical_formula_sum   'K2 C4'
_cell_volume   112.84
_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  K0  1  0.0  0.11  0.75  1.0
  K  K1  1  0.0  0.55  0.5  1.0
  C  C2  1  0.0  0.26  0.4  1.0
  C  C3  1  0.0  0.59  1.0  1.0
  C  C4  1  0.0  0.76  0.71  1.0
  C  C5  1  0.0  0.9  0.17  1.0

K K C C C C