The material structure described by K2AlB5O14 crystallizes in the orthorhombic C222_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. Al(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(4) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(6) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to two equivalent O(5) and two equivalent O(7) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted tetrahedral geometry to two equivalent K(1) and two equivalent O(8) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one Al(1), and one B(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent K(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1), one Al(1), and one B(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one K(1), one B(1), and one B(3) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one K(1), one B(2), and one B(3) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one O(1) atom. is represented by the CIF file [CIF]
data_K2AlB5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.014
_cell_length_b   7.014
_cell_length_c   12.966
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   92.580
_symmetry_Int_Tables_number   1
_cell_volume   637.159
_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  0.093  0.469  0.600  1.0
  K  K1  1  0.531  0.907  0.900  1.0
  K  K2  1  0.907  0.531  0.100  1.0
  K  K3  1  0.469  0.093  0.400  1.0
  Al  Al4  1  0.609  0.391  0.750  1.0
  Al  Al5  1  0.391  0.609  0.250  1.0
  B  B6  1  0.707  0.765  0.677  1.0
  B  B7  1  0.235  0.293  0.823  1.0
  B  B8  1  0.293  0.235  0.177  1.0
  B  B9  1  0.765  0.707  0.323  1.0
  B  B10  1  0.837  0.837  0.500  1.0
  B  B11  1  0.163  0.163  0.000  1.0
  B  B12  1  0.735  0.096  0.620  1.0
  B  B13  1  0.904  0.265  0.880  1.0
  B  B14  1  0.265  0.904  0.120  1.0
  B  B15  1  0.096  0.735  0.380  1.0
  O  O16  1  0.811  0.189  0.250  1.0
  O  O17  1  0.189  0.811  0.750  1.0
  O  O18  1  0.652  0.640  0.753  1.0
  O  O19  1  0.360  0.348  0.747  1.0
  O  O20  1  0.348  0.360  0.253  1.0
  O  O21  1  0.640  0.652  0.247  1.0
  O  O22  1  0.490  0.490  0.500  1.0
  O  O23  1  0.510  0.510  0.000  1.0
  O  O24  1  0.710  0.284  0.639  1.0
  O  O25  1  0.716  0.290  0.861  1.0
  O  O26  1  0.290  0.716  0.139  1.0
  O  O27  1  0.284  0.710  0.361  1.0
  O  O28  1  0.791  0.708  0.588  1.0
  O  O29  1  0.292  0.209  0.912  1.0
  O  O30  1  0.209  0.292  0.088  1.0
  O  O31  1  0.708  0.791  0.412  1.0
  O  O32  1  0.680  0.960  0.695  1.0
  O  O33  1  0.040  0.320  0.805  1.0
  O  O34  1  0.320  0.040  0.195  1.0
  O  O35  1  0.960  0.680  0.305  1.0
  O  O36  1  0.809  0.039  0.528  1.0
  O  O37  1  0.961  0.191  0.972  1.0
  O  O38  1  0.191  0.961  0.028  1.0
  O  O39  1  0.039  0.809  0.472  1.0
  O  O40  1  0.939  0.186  0.322  1.0
  O  O41  1  0.814  0.061  0.178  1.0
  O  O42  1  0.061  0.814  0.822  1.0
  O  O43  1  0.186  0.939  0.678  1.0
[/CIF]
.
The material structure described by K2AlB5O14 crystallizes in the orthorhombic C222_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. Al(1) is bonded in a tetrahedral geometry to two equivalent O(2) and two equivalent O(4) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(6) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to two equivalent O(5) and two equivalent O(7) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted tetrahedral geometry to two equivalent K(1) and two equivalent O(8) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one Al(1), and one B(1) atom. In the third O site, O(3) is bonded in a water-like geometry to two equivalent K(1) atoms. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1), one Al(1), and one B(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1), one B(1), and one B(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one K(1), one B(1), and one B(3) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one K(1), one B(2), and one B(3) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one O(1) atom. is represented by the CIF file [CIF]
data_K2AlB5O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.014
_cell_length_b   7.014
_cell_length_c   12.966
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   92.580
_symmetry_Int_Tables_number   1
_cell_volume   637.159
_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  0.093  0.469  0.600  1.0
  K  K1  1  0.531  0.907  0.900  1.0
  K  K2  1  0.907  0.531  0.100  1.0
  K  K3  1  0.469  0.093  0.400  1.0
  Al  Al4  1  0.609  0.391  0.750  1.0
  Al  Al5  1  0.391  0.609  0.250  1.0
  B  B6  1  0.707  0.765  0.677  1.0
  B  B7  1  0.235  0.293  0.823  1.0
  B  B8  1  0.293  0.235  0.177  1.0
  B  B9  1  0.765  0.707  0.323  1.0
  B  B10  1  0.837  0.837  0.500  1.0
  B  B11  1  0.163  0.163  0.000  1.0
  B  B12  1  0.735  0.096  0.620  1.0
  B  B13  1  0.904  0.265  0.880  1.0
  B  B14  1  0.265  0.904  0.120  1.0
  B  B15  1  0.096  0.735  0.380  1.0
  O  O16  1  0.811  0.189  0.250  1.0
  O  O17  1  0.189  0.811  0.750  1.0
  O  O18  1  0.652  0.640  0.753  1.0
  O  O19  1  0.360  0.348  0.747  1.0
  O  O20  1  0.348  0.360  0.253  1.0
  O  O21  1  0.640  0.652  0.247  1.0
  O  O22  1  0.490  0.490  0.500  1.0
  O  O23  1  0.510  0.510  0.000  1.0
  O  O24  1  0.710  0.284  0.639  1.0
  O  O25  1  0.716  0.290  0.861  1.0
  O  O26  1  0.290  0.716  0.139  1.0
  O  O27  1  0.284  0.710  0.361  1.0
  O  O28  1  0.791  0.708  0.588  1.0
  O  O29  1  0.292  0.209  0.912  1.0
  O  O30  1  0.209  0.292  0.088  1.0
  O  O31  1  0.708  0.791  0.412  1.0
  O  O32  1  0.680  0.960  0.695  1.0
  O  O33  1  0.040  0.320  0.805  1.0
  O  O34  1  0.320  0.040  0.195  1.0
  O  O35  1  0.960  0.680  0.305  1.0
  O  O36  1  0.809  0.039  0.528  1.0
  O  O37  1  0.961  0.191  0.972  1.0
  O  O38  1  0.191  0.961  0.028  1.0
  O  O39  1  0.039  0.809  0.472  1.0
  O  O40  1  0.939  0.186  0.322  1.0
  O  O41  1  0.814  0.061  0.178  1.0
  O  O42  1  0.061  0.814  0.822  1.0
  O  O43  1  0.186  0.939  0.678  1.0
[/CIF]
.