data_KNaPrTaO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   8.24
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNaPrTaO5
_chemical_formula_sum   'K2 Na2 Pr2 Ta2 O10'
_cell_volume   271.66
_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  0.87  0.87  0.0  1.0
  K  K1  1  0.0  0.0  0.0  1.0
  Na  Na2  1  0.87  0.0  0.98  1.0
  Na  Na3  1  0.0  0.87  0.25  1.0
  Pr  Pr14  1  0.87  0.87  0.12  1.0
  Pr  Pr15  1  0.0  0.0  0.12  1.0
  Ta  Ta16  1  0.0  0.87  0.1  1.0
  Ta  Ta17  1  0.87  0.0  0.14  1.0
  O  O4  1  0.0  0.87  0.25  1.0
  O  O5  1  0.42  0.54  0.68  1.0
  O  O6  1  0.33  0.54  0.68  1.0
  O  O7  1  0.42  0.2  0.68  1.0
  O  O8  1  0.33  0.2  0.68  1.0
  O  O9  1  0.54  0.42  0.56  1.0
  O  O10  1  0.2  0.42  0.56  1.0
  O  O11  1  0.54  0.33  0.56  1.0
  O  O12  1  0.2  0.33  0.56  1.0
  O  O13  1  0.87  0.0  0.99  1.0

data_KNaPrTaO5
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   8.24
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNaPrTaO5
_chemical_formula_sum   'K2 Na2 Pr2 Ta2 O10'
_cell_volume   271.66
_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  0.0  1.0
  K  K1  1  0.87  0.87  -0.0  1.0
  Na  Na2  1  -0.0  0.87  0.25  1.0
  Na  Na3  1  0.87  0.0  0.98  1.0
  Pr  Pr4  1  0.0  0.0  0.12  1.0
  Pr  Pr5  1  0.87  0.87  0.12  1.0
  Ta  Ta6  1  -0.0  0.87  0.1  1.0
  Ta  Ta7  1  0.87  0.0  0.14  1.0
  O  O8  1  -0.0  0.87  0.25  1.0
  O  O9  1  0.2  0.33  0.56  1.0
  O  O10  1  0.2  0.42  0.56  1.0
  O  O11  1  0.33  0.2  0.68  1.0
  O  O12  1  0.33  0.54  0.68  1.0
  O  O13  1  0.42  0.2  0.68  1.0
  O  O14  1  0.42  0.54  0.68  1.0
  O  O15  1  0.54  0.33  0.56  1.0
  O  O16  1  0.54  0.42  0.56  1.0
  O  O17  1  0.87  0.0  0.99  1.0

KNaPrTaO(O2)2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of four 7782-44-7 molecules and one KNaPrTaO cluster. In the KNaPrTaO cluster, there are two inequivalent K sites. In the first K site, K(1) is bonded in a single-bond geometry to one Pr(1,2) and one O(10) atom. The K(1)-Pr(1,2) bond length is 0.97 Å. The K(1)-O(10) bond length is 0.74 Å. In the second K site, K(2) is bonded in a single-bond geometry to one Pr(1,2) and one O(10) atom. The K(2)-Pr(1,2) bond length is 0.97 Å. The K(2)-O(10) bond length is 0.74 Å. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a single-bond geometry to one O(10) atom. The Na(1)-O(10) bond length is 0.04 Å. In the second Na site, Na(2) is bonded in a single-bond geometry to one O(1) atom. The Na(2)-O(1) bond length is 0.04 Å. Pr(1,2) is bonded in a 4-coordinate geometry to one K(1), one Ta(1), one Ta(2), and one O(1) atom. The Pr(1,2)-Ta(1) bond length is 0.75 Å. The Pr(1,2)-Ta(2) bond length is 0.75 Å. The Pr(1,2)-O(1) bond length is 1.30 Å. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a distorted L-shaped geometry to two equivalent Pr(1,2) atoms. In the second Ta site, Ta(2) is bonded in a 4-coordinate geometry to two equivalent Pr(1,2); one O(1); and one O(10) atom. The Ta(2)-O(1) bond length is 1.39 Å. The Ta(2)-O(10) bond length is 1.21 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Na(2); two equivalent Pr(1,2); and one Ta(2) atom. In the second O site, O(10) is bonded in a distorted single-bond geometry to one K(1), one K(2), one Na(1), and one Ta(2) atom.