data_KC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.57
_cell_length_b   7.57
_cell_length_c   4.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KC
_chemical_formula_sum   'K3 C3'
_cell_volume   200.1
_cell_formula_units_Z   3
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  K3  1  0.0  0.0  0.0  1.0
  K  K4  1  0.78  0.18  0.02  1.0
  K  K5  1  0.0  0.37  0.02  1.0
  C  C0  1  0.58  0.46  0.0  1.0
  C  C1  1  0.36  0.09  0.0  1.0
  C  C2  1  0.84  0.0  0.0  1.0

data_KC
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.04
_cell_length_b   7.57
_cell_length_c   7.57
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KC
_chemical_formula_sum   'K3 C3'
_cell_volume   200.1
_cell_formula_units_Z   3
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  0.0  0.0  1.0
  K  K1  1  0.02  0.0  0.37  1.0
  K  K2  1  0.02  0.78  0.18  1.0
  C  C3  1  0.0  0.84  0.0  1.0
  C  C4  1  0.0  0.36  0.09  1.0
  C  C5  1  0.0  0.58  0.46  1.0

K K K C C C
K K K C C C 0 5 - o o 0 4 o o o 1 5 o o o 1 2 + o o 1 4 o o o 3 4 o o o 