data_KV
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.04
_cell_length_b   3.86
_cell_length_c   9.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KV
_chemical_formula_sum   'K2 V2'
_cell_volume   116.33
_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  0.0  0.52  1.0
  K  K1  1  0.52  0.93  0.38  1.0
  V  V2  1  0.0  0.0  0.27  1.0
  V  V3  1  0.52  0.93  0.63  1.0

data_KV
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.04
_cell_length_b   3.86
_cell_length_c   9.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   KV
_chemical_formula_sum   'K2 V2'
_cell_volume   116.33
_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  0.26  0.47  0.93  1.0
  V  V1  2  0.26  0.47  0.18  1.0

K K V V
K K V V 0 1 - - o 0 1 o - o 0 3 - - o 0 3 o - o 1 2 o + o 1 2 + + o 