The compound described by Co2AlO4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with six equivalent Al(1)O4 tetrahedra and edges with six equivalent Co(1)O6 octahedra. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with twelve equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(1) and one Al(1) atom. is represented by the CIF card [CIF]
data_Al(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.848
_cell_length_b   5.848
_cell_length_c   5.848
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   141.405
_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
  Al  Al0  1  0.750  0.750  0.750  1.0
  Al  Al1  1  0.500  0.500  0.500  1.0
  Co  Co2  1  0.125  0.125  0.625  1.0
  Co  Co3  1  0.125  0.125  0.125  1.0
  Co  Co4  1  0.125  0.625  0.125  1.0
  Co  Co5  1  0.625  0.125  0.125  1.0
  O  O6  1  0.876  0.372  0.876  1.0
  O  O7  1  0.878  0.374  0.374  1.0
  O  O8  1  0.374  0.374  0.878  1.0
  O  O9  1  0.374  0.374  0.374  1.0
  O  O10  1  0.372  0.876  0.876  1.0
  O  O11  1  0.374  0.878  0.374  1.0
  O  O12  1  0.876  0.876  0.372  1.0
  O  O13  1  0.876  0.876  0.876  1.0
[/CIF]
.
The compound described by Co2AlO4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with six equivalent Al(1)O4 tetrahedra and edges with six equivalent Co(1)O6 octahedra. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with twelve equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Co(1) and one Al(1) atom. is represented by the CIF card [CIF]
data_Al(CoO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.848
_cell_length_b   5.848
_cell_length_c   5.848
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   141.405
_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
  Al  Al0  1  0.750  0.750  0.750  1.0
  Al  Al1  1  0.500  0.500  0.500  1.0
  Co  Co2  1  0.125  0.125  0.625  1.0
  Co  Co3  1  0.125  0.125  0.125  1.0
  Co  Co4  1  0.125  0.625  0.125  1.0
  Co  Co5  1  0.625  0.125  0.125  1.0
  O  O6  1  0.876  0.372  0.876  1.0
  O  O7  1  0.878  0.374  0.374  1.0
  O  O8  1  0.374  0.374  0.878  1.0
  O  O9  1  0.374  0.374  0.374  1.0
  O  O10  1  0.372  0.876  0.876  1.0
  O  O11  1  0.374  0.878  0.374  1.0
  O  O12  1  0.876  0.876  0.372  1.0
  O  O13  1  0.876  0.876  0.876  1.0
[/CIF]
.