The crystal structure described by KNa7V8O24 is Esseneite-like structured and crystallizes in the monoclinic P2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(11), two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms. There are seven inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(3)O6 octahedra. In the second Na site, Na(2) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, and edges with two equivalent Na(4)O6 octahedra. In the third Na site, Na(3) is bonded to two equivalent O(11), two equivalent O(2), and two equivalent O(4) atoms to form NaO6 octahedra that share corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(1)O6 octahedra. In the fourth Na site, Na(4) is bonded to two equivalent O(1), two equivalent O(12), and two equivalent O(3) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(2)O6 octahedra. In the fifth Na site, Na(5) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(12), and two equivalent O(6) atoms. In the sixth Na site, Na(6) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(7), and two equivalent O(9) atoms. In the seventh Na site, Na(7) is bonded in a 6-coordinate geometry to two equivalent O(10), two equivalent O(3), and two equivalent O(8) atoms. There are four inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-61°. In the second V site, V(2) is bonded to one O(10), one O(2), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra, and corners with two equivalent V(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. In the third V site, V(3) is bonded to one O(11), one O(3), one O(5), and one O(7) atom to form VO4 tetrahedra that share  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-61°. In the fourth V site, V(4) is bonded to one O(12), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-61°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(4), one Na(5), and one V(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one Na(1), one Na(3), and one V(2) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(4), one Na(7), and one V(3) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(3), one Na(6), and one V(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one V(1), and one V(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(5), one V(2), and one V(4) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(1), one Na(6), one V(1), and one V(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(7), one V(2), and one V(4) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Na(1), one Na(6), and one V(1) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Na(2), one Na(7), and one V(2) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one K(1), one Na(3), and one V(3) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Na(4), one Na(5), and one V(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KNa7V8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.832
_cell_length_b   5.955
_cell_length_c   10.693
_cell_angle_alpha   75.461
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   606.036
_cell_formula_units_Z   1
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  0.800  0.500  0.500  1.0
  Na  Na1  1  0.409  0.500  0.500  1.0
  Na  Na2  1  0.910  0.000  0.000  1.0
  Na  Na3  1  0.589  0.000  0.500  1.0
  Na  Na4  1  0.090  0.500  0.000  1.0
  Na  Na5  1  0.292  0.000  0.000  1.0
  Na  Na6  1  0.208  0.000  0.500  1.0
  Na  Na7  1  0.708  0.500  0.000  1.0
  V  V8  1  0.089  0.713  0.290  1.0
  V  V9  1  0.587  0.212  0.792  1.0
  V  V10  1  0.089  0.287  0.710  1.0
  V  V11  1  0.587  0.788  0.208  1.0
  V  V12  1  0.912  0.789  0.712  1.0
  V  V13  1  0.411  0.287  0.210  1.0
  V  V14  1  0.912  0.211  0.288  1.0
  V  V15  1  0.411  0.713  0.790  1.0
  O  O16  1  0.100  0.788  0.127  1.0
  O  O17  1  0.592  0.281  0.630  1.0
  O  O18  1  0.100  0.212  0.873  1.0
  O  O19  1  0.592  0.719  0.370  1.0
  O  O20  1  0.901  0.713  0.874  1.0
  O  O21  1  0.401  0.213  0.372  1.0
  O  O22  1  0.901  0.287  0.126  1.0
  O  O23  1  0.401  0.787  0.628  1.0
  O  O24  1  0.012  0.425  0.347  1.0
  O  O25  1  0.509  0.926  0.851  1.0
  O  O26  1  0.012  0.575  0.653  1.0
  O  O27  1  0.509  0.074  0.149  1.0
  O  O28  1  0.991  0.075  0.651  1.0
  O  O29  1  0.490  0.572  0.150  1.0
  O  O30  1  0.991  0.925  0.349  1.0
  O  O31  1  0.490  0.428  0.850  1.0
  O  O32  1  0.243  0.713  0.356  1.0
  O  O33  1  0.743  0.214  0.855  1.0
  O  O34  1  0.243  0.287  0.644  1.0
  O  O35  1  0.743  0.786  0.145  1.0
  O  O36  1  0.758  0.794  0.647  1.0
  O  O37  1  0.257  0.287  0.144  1.0
  O  O38  1  0.758  0.206  0.353  1.0
  O  O39  1  0.257  0.713  0.856  1.0
[/CIF]
.
The crystal structure described by KNa7V8O24 is Esseneite-like structured and crystallizes in the monoclinic P2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(11), two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms. There are seven inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(3)O6 octahedra. In the second Na site, Na(2) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(3) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, and edges with two equivalent Na(4)O6 octahedra. In the third Na site, Na(3) is bonded to two equivalent O(11), two equivalent O(2), and two equivalent O(4) atoms to form NaO6 octahedra that share corners with two equivalent V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(1)O6 octahedra. In the fourth Na site, Na(4) is bonded to two equivalent O(1), two equivalent O(12), and two equivalent O(3) atoms to form NaO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with two equivalent V(4)O4 tetrahedra, and edges with two equivalent Na(2)O6 octahedra. In the fifth Na site, Na(5) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(12), and two equivalent O(6) atoms. In the sixth Na site, Na(6) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(7), and two equivalent O(9) atoms. In the seventh Na site, Na(7) is bonded in a 6-coordinate geometry to two equivalent O(10), two equivalent O(3), and two equivalent O(8) atoms. There are four inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(5), one O(7), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-61°. In the second V site, V(2) is bonded to one O(10), one O(2), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra, and corners with two equivalent V(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. In the third V site, V(3) is bonded to one O(11), one O(3), one O(5), and one O(7) atom to form VO4 tetrahedra that share  a cornercorner with one Na(2)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 31-61°. In the fourth V site, V(4) is bonded to one O(12), one O(4), one O(6), and one O(8) atom to form VO4 tetrahedra that share  a cornercorner with one Na(1)O6 octahedra,  a cornercorner with one Na(3)O6 octahedra,  a cornercorner with one Na(4)O6 octahedra, and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 33-61°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(4), one Na(5), and one V(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one Na(1), one Na(3), and one V(2) atom. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(4), one Na(7), and one V(3) atom. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(3), one Na(6), and one V(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one V(1), and one V(3) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(5), one V(2), and one V(4) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(1), one Na(6), one V(1), and one V(3) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Na(7), one V(2), and one V(4) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Na(1), one Na(6), and one V(1) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Na(2), one Na(7), and one V(2) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one K(1), one Na(3), and one V(3) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Na(4), one Na(5), and one V(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KNa7V8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.832
_cell_length_b   5.955
_cell_length_c   10.693
_cell_angle_alpha   75.461
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   606.036
_cell_formula_units_Z   1
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  0.800  0.500  0.500  1.0
  Na  Na1  1  0.409  0.500  0.500  1.0
  Na  Na2  1  0.910  0.000  0.000  1.0
  Na  Na3  1  0.589  0.000  0.500  1.0
  Na  Na4  1  0.090  0.500  0.000  1.0
  Na  Na5  1  0.292  0.000  0.000  1.0
  Na  Na6  1  0.208  0.000  0.500  1.0
  Na  Na7  1  0.708  0.500  0.000  1.0
  V  V8  1  0.089  0.713  0.290  1.0
  V  V9  1  0.587  0.212  0.792  1.0
  V  V10  1  0.089  0.287  0.710  1.0
  V  V11  1  0.587  0.788  0.208  1.0
  V  V12  1  0.912  0.789  0.712  1.0
  V  V13  1  0.411  0.287  0.210  1.0
  V  V14  1  0.912  0.211  0.288  1.0
  V  V15  1  0.411  0.713  0.790  1.0
  O  O16  1  0.100  0.788  0.127  1.0
  O  O17  1  0.592  0.281  0.630  1.0
  O  O18  1  0.100  0.212  0.873  1.0
  O  O19  1  0.592  0.719  0.370  1.0
  O  O20  1  0.901  0.713  0.874  1.0
  O  O21  1  0.401  0.213  0.372  1.0
  O  O22  1  0.901  0.287  0.126  1.0
  O  O23  1  0.401  0.787  0.628  1.0
  O  O24  1  0.012  0.425  0.347  1.0
  O  O25  1  0.509  0.926  0.851  1.0
  O  O26  1  0.012  0.575  0.653  1.0
  O  O27  1  0.509  0.074  0.149  1.0
  O  O28  1  0.991  0.075  0.651  1.0
  O  O29  1  0.490  0.572  0.150  1.0
  O  O30  1  0.991  0.925  0.349  1.0
  O  O31  1  0.490  0.428  0.850  1.0
  O  O32  1  0.243  0.713  0.356  1.0
  O  O33  1  0.743  0.214  0.855  1.0
  O  O34  1  0.243  0.287  0.644  1.0
  O  O35  1  0.743  0.786  0.145  1.0
  O  O36  1  0.758  0.794  0.647  1.0
  O  O37  1  0.257  0.287  0.144  1.0
  O  O38  1  0.758  0.206  0.353  1.0
  O  O39  1  0.257  0.713  0.856  1.0
[/CIF]
.