The material structure described by Na3GaB4O9 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(4), and two equivalent O(6) atoms. Ga(1) is bonded to one O(3), one O(5), and two equivalent O(6) atoms to form GaO4 tetrahedra that share  a cornercorner with one B(1)O4 tetrahedra and  a cornercorner with one B(2)O4 tetrahedra. There are three inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(5), and two equivalent O(1) atoms to form BO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra and  a cornercorner with one B(2)O4 tetrahedra. In the second B site, B(2) is bonded to one O(2), one O(3), and two equivalent O(4) atoms to form BO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra and  a cornercorner with one B(1)O4 tetrahedra. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1), one O(4), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one B(1), and one B(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(2), one B(1), and one B(2) atom. In the third O site, O(3) is bonded in a distorted tetrahedral geometry to two equivalent Na(1), one Ga(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one B(2), and one B(3) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), one Ga(1), and one B(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ga(1), and one B(3) atom. is represented by the CIF file [CIF]
data_Na3GaB4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.782
_cell_length_b   6.281
_cell_length_c   6.882
_cell_angle_alpha   80.983
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   374.900
_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
  Na  Na0  1  0.466  0.746  0.177  1.0
  Na  Na1  1  0.034  0.746  0.177  1.0
  Na  Na2  1  0.750  0.577  0.493  1.0
  Na  Na3  1  0.250  0.423  0.507  1.0
  Na  Na4  1  0.966  0.254  0.823  1.0
  Na  Na5  1  0.534  0.254  0.823  1.0
  Ga  Ga6  1  0.750  0.793  0.864  1.0
  Ga  Ga7  1  0.250  0.207  0.136  1.0
  B  B8  1  0.750  0.985  0.219  1.0
  B  B9  1  0.250  0.878  0.474  1.0
  B  B10  1  0.455  0.754  0.720  1.0
  B  B11  1  0.045  0.754  0.720  1.0
  B  B12  1  0.955  0.246  0.280  1.0
  B  B13  1  0.545  0.246  0.280  1.0
  B  B14  1  0.750  0.122  0.526  1.0
  B  B15  1  0.250  0.015  0.781  1.0
  O  O16  1  0.392  0.883  0.846  1.0
  O  O17  1  0.108  0.883  0.846  1.0
  O  O18  1  0.750  0.934  0.431  1.0
  O  O19  1  0.250  0.924  0.262  1.0
  O  O20  1  0.389  0.735  0.541  1.0
  O  O21  1  0.111  0.735  0.541  1.0
  O  O22  1  0.750  0.784  0.135  1.0
  O  O23  1  0.914  0.637  0.778  1.0
  O  O24  1  0.586  0.637  0.778  1.0
  O  O25  1  0.086  0.363  0.222  1.0
  O  O26  1  0.414  0.363  0.222  1.0
  O  O27  1  0.250  0.216  0.865  1.0
  O  O28  1  0.889  0.265  0.459  1.0
  O  O29  1  0.611  0.265  0.459  1.0
  O  O30  1  0.750  0.076  0.738  1.0
  O  O31  1  0.250  0.066  0.569  1.0
  O  O32  1  0.892  0.117  0.154  1.0
  O  O33  1  0.608  0.117  0.154  1.0
[/CIF]
.
The material structure described by Na3GaB4O9 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one O(2), one O(5), two equivalent O(4), and two equivalent O(6) atoms. Ga(1) is bonded to one O(3), one O(5), and two equivalent O(6) atoms to form GaO4 tetrahedra that share  a cornercorner with one B(1)O4 tetrahedra and  a cornercorner with one B(2)O4 tetrahedra. There are three inequivalent B sites. In the first B site, B(1) is bonded to one O(2), one O(5), and two equivalent O(1) atoms to form BO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra and  a cornercorner with one B(2)O4 tetrahedra. In the second B site, B(2) is bonded to one O(2), one O(3), and two equivalent O(4) atoms to form BO4 tetrahedra that share  a cornercorner with one Ga(1)O4 tetrahedra and  a cornercorner with one B(1)O4 tetrahedra. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1), one O(4), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one B(1), and one B(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(2), one B(1), and one B(2) atom. In the third O site, O(3) is bonded in a distorted tetrahedral geometry to two equivalent Na(1), one Ga(1), and one B(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Na(2), one B(2), and one B(3) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), one Ga(1), and one B(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ga(1), and one B(3) atom. is represented by the CIF file [CIF]
data_Na3GaB4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.782
_cell_length_b   6.281
_cell_length_c   6.882
_cell_angle_alpha   80.983
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   374.900
_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
  Na  Na0  1  0.466  0.746  0.177  1.0
  Na  Na1  1  0.034  0.746  0.177  1.0
  Na  Na2  1  0.750  0.577  0.493  1.0
  Na  Na3  1  0.250  0.423  0.507  1.0
  Na  Na4  1  0.966  0.254  0.823  1.0
  Na  Na5  1  0.534  0.254  0.823  1.0
  Ga  Ga6  1  0.750  0.793  0.864  1.0
  Ga  Ga7  1  0.250  0.207  0.136  1.0
  B  B8  1  0.750  0.985  0.219  1.0
  B  B9  1  0.250  0.878  0.474  1.0
  B  B10  1  0.455  0.754  0.720  1.0
  B  B11  1  0.045  0.754  0.720  1.0
  B  B12  1  0.955  0.246  0.280  1.0
  B  B13  1  0.545  0.246  0.280  1.0
  B  B14  1  0.750  0.122  0.526  1.0
  B  B15  1  0.250  0.015  0.781  1.0
  O  O16  1  0.392  0.883  0.846  1.0
  O  O17  1  0.108  0.883  0.846  1.0
  O  O18  1  0.750  0.934  0.431  1.0
  O  O19  1  0.250  0.924  0.262  1.0
  O  O20  1  0.389  0.735  0.541  1.0
  O  O21  1  0.111  0.735  0.541  1.0
  O  O22  1  0.750  0.784  0.135  1.0
  O  O23  1  0.914  0.637  0.778  1.0
  O  O24  1  0.586  0.637  0.778  1.0
  O  O25  1  0.086  0.363  0.222  1.0
  O  O26  1  0.414  0.363  0.222  1.0
  O  O27  1  0.250  0.216  0.865  1.0
  O  O28  1  0.889  0.265  0.459  1.0
  O  O29  1  0.611  0.265  0.459  1.0
  O  O30  1  0.750  0.076  0.738  1.0
  O  O31  1  0.250  0.066  0.569  1.0
  O  O32  1  0.892  0.117  0.154  1.0
  O  O33  1  0.608  0.117  0.154  1.0
[/CIF]
.