data_K2V2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.48
_cell_length_b   8.48
_cell_length_c   8.48
_cell_angle_alpha   60.88
_cell_angle_beta   137.0
_cell_angle_gamma   139.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2V2O5
_chemical_formula_sum   'K4 V4 O10'
_cell_volume   269.51
_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  0.62  0.94  0.09  1.0
  K  K1  1  0.69  0.17  0.06  1.0
  K  K2  1  0.62  0.17  0.06  1.0
  K  K3  1  0.69  0.94  0.09  1.0
  V  V4  1  0.0  0.0  0.25  1.0
  V  V5  1  0.31  0.0  0.25  1.0
  V  V6  1  0.97  0.51  0.15  1.0
  V  V7  1  0.34  0.6  0.11  1.0
  O  O8  1  0.44  0.42  0.29  1.0
  O  O9  1  0.87  0.69  0.25  1.0
  O  O10  1  0.13  0.8  0.29  1.0
  O  O11  1  0.87  0.42  0.29  1.0
  O  O12  1  0.25  0.85  0.92  1.0
  O  O13  1  0.06  0.26  0.96  1.0
  O  O14  1  0.25  0.26  0.96  1.0
  O  O15  1  0.06  0.85  0.92  1.0
  O  O16  1  0.66  0.28  0.92  1.0
  O  O17  1  0.66  0.83  0.88  1.0

data_K2V2O5
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.93
_cell_length_b   6.22
_cell_length_c   8.48
_cell_angle_alpha   111.5
_cell_angle_beta   110.47
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2V2O5
_chemical_formula_sum   'K4 V4 O10'
_cell_volume   269.51
_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  0.06  0.91  0.59  1.0
  K  K1  1  0.06  0.91  0.66  1.0
  K  K2  1  0.83  0.94  0.39  1.0
  K  K3  1  0.83  0.94  0.46  1.0
  V  V4  1  0.0  0.75  0.06  1.0
  V  V5  1  0.0  0.75  0.75  1.0
  V  V6  1  0.4  0.89  0.64  1.0
  V  V7  1  0.49  0.85  0.31  1.0
  O  O8  1  0.15  0.08  0.29  1.0
  O  O9  1  0.15  0.08  0.48  1.0
  O  O10  1  0.17  0.12  0.94  1.0
  O  O11  1  0.2  0.71  0.05  1.0
  O  O12  1  0.31  0.75  0.92  1.0
  O  O13  1  0.58  0.71  0.16  1.0
  O  O14  1  0.58  0.71  0.74  1.0
  O  O15  1  0.72  0.08  0.45  1.0
  O  O16  1  0.74  0.04  0.03  1.0
  O  O17  1  0.74  0.04  0.84  1.0

K K K K V V V V O O O O O O O O O O
K K K K V V V V O O O O O O O O O O 0 3 o o o 0 7 o o o 0 12 o o - 0 17 o o - 1 2 o o o 1 6 o o o 1 12 o - - 1 16 o o - 2 6 o o o 2 12 o - - 2 16 o o - 3 4 + + o 3 7 o o o 3 17 o o - 4 17 - - - 5 10 o - o 6 16 o o - 6 11 o o o 7 12 o o - 7 13 o o - 7 8 o o o 8 13 o o - 9 10 + o o 9 17 o o - 12 15 o o o 13 14 o o o 13 17 - - o 