data_Rb2V2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.55
_cell_length_b   8.55
_cell_length_c   8.55
_cell_angle_alpha   64.06
_cell_angle_beta   134.84
_cell_angle_gamma   137.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2V2O5
_chemical_formula_sum   'Rb4 V4 O10'
_cell_volume   297.95
_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
  Rb  Rb0  1  0.49  0.45  0.87  1.0
  Rb  Rb1  1  0.76  0.84  1.0  1.0
  Rb  Rb2  1  0.49  0.84  1.0  1.0
  Rb  Rb3  1  0.76  0.45  0.87  1.0
  V  V4  1  0.0  0.0  0.9  1.0
  V  V5  1  0.0  0.28  0.77  1.0
  V  V6  1  0.63  0.67  0.02  1.0
  V  V7  1  0.63  0.61  0.89  1.0
  O  O8  1  0.12  0.85  0.78  1.0
  O  O9  1  0.13  0.43  0.66  1.0
  O  O10  1  0.37  0.15  0.78  1.0
  O  O11  1  0.13  0.85  0.78  1.0
  O  O12  1  0.45  0.22  0.98  1.0
  O  O13  1  0.8  0.06  0.11  1.0
  O  O14  1  0.95  0.06  0.11  1.0
  O  O15  1  0.3  0.22  0.98  1.0
  O  O16  1  0.63  0.81  0.36  1.0
  O  O17  1  0.63  0.48  0.49  1.0

data_Rb2V2O5
_symmetry_space_group_name_H-M   P1
_cell_length_a   6.26
_cell_length_b   6.57
_cell_length_c   8.55
_cell_angle_alpha   112.58
_cell_angle_beta   111.46
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2V2O5
_chemical_formula_sum   'Rb4 V4 O10'
_cell_volume   297.95
_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
  Rb  Rb0  1  0.16  0.0  0.65  1.0
  Rb  Rb1  1  0.16  0.0  0.93  1.0
  Rb  Rb2  1  0.55  0.13  0.17  1.0
  Rb  Rb3  1  0.55  0.13  0.45  1.0
  V  V4  1  0.0  0.1  0.1  1.0
  V  V5  1  0.33  0.98  0.94  1.0
  V  V6  1  0.39  0.11  0.12  1.0
  V  V7  1  0.72  0.23  0.95  1.0
  O  O8  1  0.15  0.22  0.48  1.0
  O  O9  1  0.15  0.22  0.5  1.0
  O  O10  1  0.19  0.64  0.45  1.0
  O  O11  1  0.52  0.51  0.66  1.0
  O  O12  1  0.57  0.34  0.04  1.0
  O  O13  1  0.78  0.02  0.1  1.0
  O  O14  1  0.78  0.02  0.25  1.0
  O  O15  1  0.85  0.22  0.44  1.0
  O  O16  1  0.94  0.89  0.64  1.0
  O  O17  1  0.94  0.89  0.78  1.0

Rb Rb Rb Rb V V V V O O O O O O O O O O
RbO4RbO2RbV3O3RbVO crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one rubidium hydroxide hydrate molecule, one RbO4 cluster, one RbV3O3 cluster, and one RbVO cluster. In the RbO4 cluster, Rb(3) is bonded in a 1-coordinate geometry to one O(4), one O(6), and one O(9) atom. The Rb(3)-O(4) bond length is 2.27 Å. The Rb(3)-O(6) bond length is 1.50 Å. The Rb(3)-O(9) bond length is 2.40 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one O(4) atom. The O(1)-O(4) bond length is 0.11 Å. In the second O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Rb(3) and one O(1) atom. In the third O site, O(6) is bonded in a single-bond geometry to one Rb(3) atom. In the fourth O site, O(9) is bonded in a single-bond geometry to one Rb(3) atom. In the RbV3O3 cluster, Rb(1) is bonded in a 4-coordinate geometry to one V(4), one O(2), one O(5), and one O(8) atom. The Rb(1)-V(4) bond length is 0.95 Å. The Rb(1)-O(2) bond length is 2.10 Å. The Rb(1)-O(5) bond length is 1.61 Å. The Rb(1)-O(8) bond length is 1.76 Å. There are three inequivalent V sites. In the first V site, V(1) is bonded in a distorted single-bond geometry to one O(8) atom. The V(1)-O(8) bond length is 1.49 Å. In the second V site, V(2) is bonded in a distorted single-bond geometry to one O(2) atom. The V(2)-O(2) bond length is 1.47 Å. In the third V site, V(4) is bonded in a single-bond geometry to one Rb(1) atom. There are three inequivalent O sites. In the first O site, O(2) is bonded in a 1-coordinate geometry to one Rb(1) and one V(2) atom. In the second O site, O(5) is bonded in a distorted single-bond geometry to one Rb(1) atom. In the third O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1) and one V(1) atom. In the RbVO cluster, Rb(2) is bonded in a 2-coordinate geometry to one V(3) and one O(7) atom. The Rb(2)-V(3) bond length is 1.03 Å. The Rb(2)-O(7) bond length is 1.44 Å. V(3) is bonded in a single-bond geometry to one Rb(2) atom. O(7) is bonded in a distorted single-bond geometry to one Rb(2) atom.