The material structure described by BaGa4O7 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(3), and four equivalent O(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Ga(2) and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ba(1) and two equivalent Ga(2) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ga(1), and one Ga(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Ba(1) and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_BaGa4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.323
_cell_length_b   8.323
_cell_length_c   5.803
_cell_angle_alpha   78.062
_cell_angle_beta   78.062
_cell_angle_gamma   69.124
_symmetry_Int_Tables_number   1
_cell_volume   363.523
_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
  Ba  Ba0  1  0.309  0.691  0.250  1.0
  Ba  Ba1  1  0.691  0.309  0.750  1.0
  Ga  Ga2  1  0.815  0.943  0.278  1.0
  Ga  Ga3  1  0.943  0.815  0.778  1.0
  Ga  Ga4  1  0.761  0.587  0.205  1.0
  Ga  Ga5  1  0.587  0.761  0.705  1.0
  Ga  Ga6  1  0.413  0.239  0.295  1.0
  Ga  Ga7  1  0.239  0.413  0.795  1.0
  Ga  Ga8  1  0.057  0.185  0.222  1.0
  Ga  Ga9  1  0.185  0.057  0.722  1.0
  O  O10  1  0.874  0.754  0.107  1.0
  O  O11  1  0.754  0.874  0.607  1.0
  O  O12  1  0.586  0.659  0.454  1.0
  O  O13  1  0.886  0.369  0.330  1.0
  O  O14  1  0.659  0.586  0.954  1.0
  O  O15  1  0.369  0.886  0.830  1.0
  O  O16  1  0.023  0.977  0.250  1.0
  O  O17  1  0.977  0.023  0.750  1.0
  O  O18  1  0.631  0.114  0.170  1.0
  O  O19  1  0.341  0.414  0.046  1.0
  O  O20  1  0.114  0.631  0.670  1.0
  O  O21  1  0.414  0.341  0.546  1.0
  O  O22  1  0.246  0.126  0.393  1.0
  O  O23  1  0.126  0.246  0.893  1.0
[/CIF]
.
The material structure described by BaGa4O7 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(3), and four equivalent O(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Ga(2) and two equivalent Ga(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ba(1) and two equivalent Ga(2) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ga(1), and one Ga(2) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Ba(1) and two equivalent Ga(1) atoms. is represented by the CIF file [CIF]
data_BaGa4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.323
_cell_length_b   8.323
_cell_length_c   5.803
_cell_angle_alpha   78.062
_cell_angle_beta   78.062
_cell_angle_gamma   69.124
_symmetry_Int_Tables_number   1
_cell_volume   363.523
_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
  Ba  Ba0  1  0.309  0.691  0.250  1.0
  Ba  Ba1  1  0.691  0.309  0.750  1.0
  Ga  Ga2  1  0.815  0.943  0.278  1.0
  Ga  Ga3  1  0.943  0.815  0.778  1.0
  Ga  Ga4  1  0.761  0.587  0.205  1.0
  Ga  Ga5  1  0.587  0.761  0.705  1.0
  Ga  Ga6  1  0.413  0.239  0.295  1.0
  Ga  Ga7  1  0.239  0.413  0.795  1.0
  Ga  Ga8  1  0.057  0.185  0.222  1.0
  Ga  Ga9  1  0.185  0.057  0.722  1.0
  O  O10  1  0.874  0.754  0.107  1.0
  O  O11  1  0.754  0.874  0.607  1.0
  O  O12  1  0.586  0.659  0.454  1.0
  O  O13  1  0.886  0.369  0.330  1.0
  O  O14  1  0.659  0.586  0.954  1.0
  O  O15  1  0.369  0.886  0.830  1.0
  O  O16  1  0.023  0.977  0.250  1.0
  O  O17  1  0.977  0.023  0.750  1.0
  O  O18  1  0.631  0.114  0.170  1.0
  O  O19  1  0.341  0.414  0.046  1.0
  O  O20  1  0.114  0.631  0.670  1.0
  O  O21  1  0.414  0.341  0.546  1.0
  O  O22  1  0.246  0.126  0.393  1.0
  O  O23  1  0.126  0.246  0.893  1.0
[/CIF]
.