The compound described by K2AlB5O14 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(14), one O(4), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. Al(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(7) atom. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(7), and one O(9) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(10), one O(11), and one O(3) atom. In the third B site, B(3) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(13), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(13), one O(14), and one O(5) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(1), one O(12), and one O(14) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Al(1), and one B(5) atom. In the second O site, O(2) is bonded in a single-bond geometry to one O(8) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(2), one Al(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one K(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(2), one Al(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one K(1) and one K(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one Al(1), and one B(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one O(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one K(2), one B(1), and one B(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one K(2), one B(1), and one B(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(2), and one B(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one K(2), one B(3), and one B(5) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one K(1), one B(3), and one B(4) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(4), and one B(5) atom. is represented by the CIF file [CIF]
data_K2AlB5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.422
_cell_length_b   7.010
_cell_length_c   7.035
_cell_angle_alpha   89.648
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   661.877
_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  0.632  0.415  0.447  1.0
  K  K1  1  0.132  0.585  0.553  1.0
  K  K2  1  0.919  0.977  0.904  1.0
  K  K3  1  0.419  0.023  0.096  1.0
  Al  Al4  1  0.780  0.879  0.382  1.0
  Al  Al5  1  0.280  0.121  0.618  1.0
  B  B6  1  0.651  0.769  0.084  1.0
  B  B7  1  0.151  0.231  0.916  1.0
  B  B8  1  0.704  0.793  0.752  1.0
  B  B9  1  0.204  0.207  0.248  1.0
  B  B10  1  0.529  0.677  0.818  1.0
  B  B11  1  0.029  0.323  0.182  1.0
  B  B12  1  0.409  0.417  0.731  1.0
  B  B13  1  0.909  0.583  0.269  1.0
  B  B14  1  0.356  0.750  0.704  1.0
  B  B15  1  0.856  0.250  0.296  1.0
  O  O16  1  0.782  0.127  0.340  1.0
  O  O17  1  0.282  0.873  0.660  1.0
  O  O18  1  0.662  0.255  0.934  1.0
  O  O19  1  0.162  0.745  0.066  1.0
  O  O20  1  0.778  0.842  0.630  1.0
  O  O21  1  0.278  0.158  0.370  1.0
  O  O22  1  0.460  0.548  0.222  1.0
  O  O23  1  0.960  0.452  0.778  1.0
  O  O24  1  0.888  0.771  0.286  1.0
  O  O25  1  0.388  0.229  0.714  1.0
  O  O26  1  0.028  0.981  0.518  1.0
  O  O27  1  0.528  0.019  0.482  1.0
  O  O28  1  0.671  0.782  0.272  1.0
  O  O29  1  0.171  0.218  0.728  1.0
  O  O30  1  0.738  0.286  0.837  1.0
  O  O31  1  0.238  0.714  0.163  1.0
  O  O32  1  0.559  0.712  0.021  1.0
  O  O33  1  0.059  0.288  0.979  1.0
  O  O34  1  0.723  0.818  0.948  1.0
  O  O35  1  0.223  0.182  0.052  1.0
  O  O36  1  0.615  0.719  0.695  1.0
  O  O37  1  0.115  0.281  0.305  1.0
  O  O38  1  0.447  0.808  0.774  1.0
  O  O39  1  0.947  0.192  0.226  1.0
  O  O40  1  0.501  0.476  0.792  1.0
  O  O41  1  0.001  0.524  0.208  1.0
  O  O42  1  0.336  0.555  0.684  1.0
  O  O43  1  0.836  0.445  0.316  1.0
[/CIF]
.
The compound described by K2AlB5O14 crystallizes in the monoclinic P2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(14), one O(4), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. Al(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(7) atom. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(7), and one O(9) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(10), one O(11), and one O(3) atom. In the third B site, B(3) is bonded in a tetrahedral geometry to one O(11), one O(12), one O(13), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(13), one O(14), and one O(5) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(1), one O(12), and one O(14) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Al(1), and one B(5) atom. In the second O site, O(2) is bonded in a single-bond geometry to one O(8) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(2), one Al(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one K(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(2), one Al(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one K(1) and one K(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one K(1), one Al(1), and one B(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one O(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one K(2), one B(1), and one B(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one K(2), one B(1), and one B(2) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(2), and one B(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one K(2), one B(3), and one B(5) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one K(1), one B(3), and one B(4) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(4), and one B(5) atom. is represented by the CIF file [CIF]
data_K2AlB5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.422
_cell_length_b   7.010
_cell_length_c   7.035
_cell_angle_alpha   89.648
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   661.877
_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  0.632  0.415  0.447  1.0
  K  K1  1  0.132  0.585  0.553  1.0
  K  K2  1  0.919  0.977  0.904  1.0
  K  K3  1  0.419  0.023  0.096  1.0
  Al  Al4  1  0.780  0.879  0.382  1.0
  Al  Al5  1  0.280  0.121  0.618  1.0
  B  B6  1  0.651  0.769  0.084  1.0
  B  B7  1  0.151  0.231  0.916  1.0
  B  B8  1  0.704  0.793  0.752  1.0
  B  B9  1  0.204  0.207  0.248  1.0
  B  B10  1  0.529  0.677  0.818  1.0
  B  B11  1  0.029  0.323  0.182  1.0
  B  B12  1  0.409  0.417  0.731  1.0
  B  B13  1  0.909  0.583  0.269  1.0
  B  B14  1  0.356  0.750  0.704  1.0
  B  B15  1  0.856  0.250  0.296  1.0
  O  O16  1  0.782  0.127  0.340  1.0
  O  O17  1  0.282  0.873  0.660  1.0
  O  O18  1  0.662  0.255  0.934  1.0
  O  O19  1  0.162  0.745  0.066  1.0
  O  O20  1  0.778  0.842  0.630  1.0
  O  O21  1  0.278  0.158  0.370  1.0
  O  O22  1  0.460  0.548  0.222  1.0
  O  O23  1  0.960  0.452  0.778  1.0
  O  O24  1  0.888  0.771  0.286  1.0
  O  O25  1  0.388  0.229  0.714  1.0
  O  O26  1  0.028  0.981  0.518  1.0
  O  O27  1  0.528  0.019  0.482  1.0
  O  O28  1  0.671  0.782  0.272  1.0
  O  O29  1  0.171  0.218  0.728  1.0
  O  O30  1  0.738  0.286  0.837  1.0
  O  O31  1  0.238  0.714  0.163  1.0
  O  O32  1  0.559  0.712  0.021  1.0
  O  O33  1  0.059  0.288  0.979  1.0
  O  O34  1  0.723  0.818  0.948  1.0
  O  O35  1  0.223  0.182  0.052  1.0
  O  O36  1  0.615  0.719  0.695  1.0
  O  O37  1  0.115  0.281  0.305  1.0
  O  O38  1  0.447  0.808  0.774  1.0
  O  O39  1  0.947  0.192  0.226  1.0
  O  O40  1  0.501  0.476  0.792  1.0
  O  O41  1  0.001  0.524  0.208  1.0
  O  O42  1  0.336  0.555  0.684  1.0
  O  O43  1  0.836  0.445  0.316  1.0
[/CIF]
.