The material structure described by K2Ga2B2O7 crystallizes in the trigonal P321 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(5) and three equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(5) and three equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. In the third Ga site, Ga(3) is bonded to one O(4) and three equivalent O(3) atoms to form corner-sharing GaO4 tetrahedra. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted linear geometry to three equivalent K(1), one Ga(1), and one Ga(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one K(2), one Ga(2), and one B(1) atom. In the third O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ga(1), and one B(1) atom. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ga(3), and one B(1) atom. In the fifth O site, O(4) is bonded in a linear geometry to three equivalent K(2) and two equivalent Ga(3) atoms. is represented by the CIF file [CIF]
data_K2Ga2B2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.680
_cell_length_b   8.680
_cell_length_c   8.866
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   578.419
_cell_formula_units_Z   3
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  0.684  0.000  0.000  1.0
  K  K1  1  0.000  0.644  0.500  1.0
  K  K2  1  0.000  0.684  0.000  1.0
  K  K3  1  0.356  0.356  0.500  1.0
  K  K4  1  0.644  0.000  0.500  1.0
  K  K5  1  0.316  0.316  0.000  1.0
  Ga  Ga6  1  0.333  0.667  0.817  1.0
  Ga  Ga7  1  0.667  0.333  0.773  1.0
  Ga  Ga8  1  0.333  0.667  0.227  1.0
  Ga  Ga9  1  0.000  0.000  0.704  1.0
  Ga  Ga10  1  0.667  0.333  0.183  1.0
  Ga  Ga11  1  0.000  0.000  0.296  1.0
  B  B12  1  0.665  0.665  0.257  1.0
  B  B13  1  0.665  0.665  0.743  1.0
  B  B14  1  0.335  0.000  0.743  1.0
  B  B15  1  0.335  1.000  0.257  1.0
  B  B16  1  0.000  0.335  0.257  1.0
  B  B17  1  1.000  0.335  0.743  1.0
  O  O18  1  0.740  0.562  0.702  1.0
  O  O19  1  0.438  0.178  0.702  1.0
  O  O20  1  0.585  0.482  0.252  1.0
  O  O21  1  0.178  0.438  0.298  1.0
  O  O22  1  0.228  0.071  0.223  1.0
  O  O23  1  0.103  0.518  0.748  1.0
  O  O24  1  0.518  0.103  0.252  1.0
  O  O25  1  0.843  0.772  0.223  1.0
  O  O26  1  0.157  0.929  0.777  1.0
  O  O27  1  0.260  0.822  0.298  1.0
  O  O28  1  0.897  0.415  0.252  1.0
  O  O29  1  0.929  0.157  0.223  1.0
  O  O30  1  0.000  0.000  0.500  1.0
  O  O31  1  0.822  0.260  0.702  1.0
  O  O32  1  0.071  0.228  0.777  1.0
  O  O33  1  0.667  0.333  0.978  1.0
  O  O34  1  0.415  0.897  0.748  1.0
  O  O35  1  0.772  0.843  0.777  1.0
  O  O36  1  0.333  0.667  0.022  1.0
  O  O37  1  0.562  0.740  0.298  1.0
  O  O38  1  0.482  0.585  0.748  1.0
[/CIF]
.
The material structure described by K2Ga2B2O7 crystallizes in the trigonal P321 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. In the second K site, K(2) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(5) and three equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(5) and three equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. In the third Ga site, Ga(3) is bonded to one O(4) and three equivalent O(3) atoms to form corner-sharing GaO4 tetrahedra. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted linear geometry to three equivalent K(1), one Ga(1), and one Ga(2) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one K(2), one Ga(2), and one B(1) atom. In the third O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ga(1), and one B(1) atom. In the fourth O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ga(3), and one B(1) atom. In the fifth O site, O(4) is bonded in a linear geometry to three equivalent K(2) and two equivalent Ga(3) atoms. is represented by the CIF file [CIF]
data_K2Ga2B2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.680
_cell_length_b   8.680
_cell_length_c   8.866
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   578.419
_cell_formula_units_Z   3
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  0.684  0.000  0.000  1.0
  K  K1  1  0.000  0.644  0.500  1.0
  K  K2  1  0.000  0.684  0.000  1.0
  K  K3  1  0.356  0.356  0.500  1.0
  K  K4  1  0.644  0.000  0.500  1.0
  K  K5  1  0.316  0.316  0.000  1.0
  Ga  Ga6  1  0.333  0.667  0.817  1.0
  Ga  Ga7  1  0.667  0.333  0.773  1.0
  Ga  Ga8  1  0.333  0.667  0.227  1.0
  Ga  Ga9  1  0.000  0.000  0.704  1.0
  Ga  Ga10  1  0.667  0.333  0.183  1.0
  Ga  Ga11  1  0.000  0.000  0.296  1.0
  B  B12  1  0.665  0.665  0.257  1.0
  B  B13  1  0.665  0.665  0.743  1.0
  B  B14  1  0.335  0.000  0.743  1.0
  B  B15  1  0.335  1.000  0.257  1.0
  B  B16  1  0.000  0.335  0.257  1.0
  B  B17  1  1.000  0.335  0.743  1.0
  O  O18  1  0.740  0.562  0.702  1.0
  O  O19  1  0.438  0.178  0.702  1.0
  O  O20  1  0.585  0.482  0.252  1.0
  O  O21  1  0.178  0.438  0.298  1.0
  O  O22  1  0.228  0.071  0.223  1.0
  O  O23  1  0.103  0.518  0.748  1.0
  O  O24  1  0.518  0.103  0.252  1.0
  O  O25  1  0.843  0.772  0.223  1.0
  O  O26  1  0.157  0.929  0.777  1.0
  O  O27  1  0.260  0.822  0.298  1.0
  O  O28  1  0.897  0.415  0.252  1.0
  O  O29  1  0.929  0.157  0.223  1.0
  O  O30  1  0.000  0.000  0.500  1.0
  O  O31  1  0.822  0.260  0.702  1.0
  O  O32  1  0.071  0.228  0.777  1.0
  O  O33  1  0.667  0.333  0.978  1.0
  O  O34  1  0.415  0.897  0.748  1.0
  O  O35  1  0.772  0.843  0.777  1.0
  O  O36  1  0.333  0.667  0.022  1.0
  O  O37  1  0.562  0.740  0.298  1.0
  O  O38  1  0.482  0.585  0.748  1.0
[/CIF]
.