The material described by CuGa2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Cu(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form CuO6 octahedra that share corners with six equivalent Ga(1)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with four equivalent Ga(2)O6 octahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with six equivalent Cu(1)O6 octahedra and corners with six equivalent Ga(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the second Ga site, Ga(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form GaO6 octahedra that share corners with six equivalent Ga(1)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, and edges with four equivalent Cu(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Cu(1), one Ga(1), and two equivalent Ga(2) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Cu(1), one Ga(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Ga2CuO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.038
_cell_length_b   6.038
_cell_length_c   6.038
_cell_angle_alpha   123.430
_cell_angle_beta   121.791
_cell_angle_gamma   85.541
_symmetry_Int_Tables_number   1
_cell_volume   148.959
_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
  Ga  Ga0  1  0.611  0.861  0.750  1.0
  Ga  Ga1  1  0.389  0.139  0.250  1.0
  Ga  Ga2  1  0.000  0.500  0.500  1.0
  Ga  Ga3  1  0.500  0.500  0.000  1.0
  Cu  Cu4  1  0.000  0.500  0.000  1.0
  Cu  Cu5  1  0.000  0.000  0.500  1.0
  O  O6  1  0.262  0.747  0.985  1.0
  O  O7  1  0.779  0.266  0.513  1.0
  O  O8  1  0.262  0.276  0.515  1.0
  O  O9  1  0.253  0.266  0.987  1.0
  O  O10  1  0.747  0.734  0.013  1.0
  O  O11  1  0.738  0.724  0.485  1.0
  O  O12  1  0.221  0.734  0.487  1.0
  O  O13  1  0.738  0.253  0.015  1.0
[/CIF]
.
The material described by CuGa2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Cu(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form CuO6 octahedra that share corners with six equivalent Ga(1)O4 tetrahedra, edges with two equivalent Cu(1)O6 octahedra, and edges with four equivalent Ga(2)O6 octahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with six equivalent Cu(1)O6 octahedra and corners with six equivalent Ga(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the second Ga site, Ga(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form GaO6 octahedra that share corners with six equivalent Ga(1)O4 tetrahedra, edges with two equivalent Ga(2)O6 octahedra, and edges with four equivalent Cu(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Cu(1), one Ga(1), and two equivalent Ga(2) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Cu(1), one Ga(1), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Ga2CuO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.038
_cell_length_b   6.038
_cell_length_c   6.038
_cell_angle_alpha   123.430
_cell_angle_beta   121.791
_cell_angle_gamma   85.541
_symmetry_Int_Tables_number   1
_cell_volume   148.959
_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
  Ga  Ga0  1  0.611  0.861  0.750  1.0
  Ga  Ga1  1  0.389  0.139  0.250  1.0
  Ga  Ga2  1  0.000  0.500  0.500  1.0
  Ga  Ga3  1  0.500  0.500  0.000  1.0
  Cu  Cu4  1  0.000  0.500  0.000  1.0
  Cu  Cu5  1  0.000  0.000  0.500  1.0
  O  O6  1  0.262  0.747  0.985  1.0
  O  O7  1  0.779  0.266  0.513  1.0
  O  O8  1  0.262  0.276  0.515  1.0
  O  O9  1  0.253  0.266  0.987  1.0
  O  O10  1  0.747  0.734  0.013  1.0
  O  O11  1  0.738  0.724  0.485  1.0
  O  O12  1  0.221  0.734  0.487  1.0
  O  O13  1  0.738  0.253  0.015  1.0
[/CIF]
.