The material structure described by MgAl2(CoO3)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Co(2)O5 trigonal bipyramids, corners with two equivalent Al(1)O5 trigonal bipyramids,  an edgeedge with one Co(2)O5 trigonal bipyramid, and  an edgeedge with one Al(1)O5 trigonal bipyramid. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(4), one O(5), and one O(6) atom to form distorted CoO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with four equivalent Al(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted AlO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with four equivalent Co(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Al site, Al(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form AlO4 tetrahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with three equivalent Co(2)O5 trigonal bipyramids, and corners with three equivalent Al(1)O5 trigonal bipyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(1), one Co(2), and one Al(2) atom to form distorted OMgAlCo2 tetrahedra that share  a cornercorner with one O(6)MgAl2Co tetrahedra, corners with three equivalent O(2)Al2Co2 tetrahedra, and  an edgeedge with one O(6)MgAl2Co tetrahedra. In the second O site, O(2) is bonded to one Co(1), one Co(2), one Al(1), and one Al(2) atom to form OAl2Co2 tetrahedra that share corners with three equivalent O(6)MgAl2Co tetrahedra and corners with three equivalent O(1)MgAlCo2 tetrahedra. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(1), one Al(1), and one Al(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(1), one Co(2), and one Al(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Co(1), one Co(2), and one Al(1) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Co(2), one Al(1), and one Al(2) atom to form distorted OMgAl2Co tetrahedra that share  a cornercorner with one O(1)MgAlCo2 tetrahedra, corners with three equivalent O(2)Al2Co2 tetrahedra, and  an edgeedge with one O(1)MgAlCo2 tetrahedra. is represented by the CIF file [CIF]
data_MgAl2(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.703
_cell_length_b   5.354
_cell_length_c   5.804
_cell_angle_alpha   90.443
_cell_angle_beta   50.713
_cell_angle_gamma   114.470
_symmetry_Int_Tables_number   1
_cell_volume   116.396
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.920  0.755  0.342  1.0
  Al  Al1  1  0.192  0.397  0.869  1.0
  Al  Al2  1  0.557  0.489  0.088  1.0
  Co  Co3  1  0.388  0.964  0.506  1.0
  Co  Co4  1  0.732  0.114  0.706  1.0
  O  O5  1  0.887  0.792  0.717  1.0
  O  O6  1  0.741  0.251  0.031  1.0
  O  O7  1  0.465  0.628  0.401  1.0
  O  O8  1  0.541  0.311  0.625  1.0
  O  O9  1  0.271  0.740  0.926  1.0
  O  O10  1  0.125  0.221  0.220  1.0
[/CIF]
.
The material structure described by MgAl2(CoO3)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Co(2)O5 trigonal bipyramids, corners with two equivalent Al(1)O5 trigonal bipyramids,  an edgeedge with one Co(2)O5 trigonal bipyramid, and  an edgeedge with one Al(1)O5 trigonal bipyramid. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(4), one O(5), and one O(6) atom to form distorted CoO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with four equivalent Al(1)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted AlO5 trigonal bipyramids that share corners with three equivalent Al(2)O4 tetrahedra, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with four equivalent Co(2)O5 trigonal bipyramids, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. In the second Al site, Al(2) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form AlO4 tetrahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with three equivalent Co(2)O5 trigonal bipyramids, and corners with three equivalent Al(1)O5 trigonal bipyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(1), one Co(2), and one Al(2) atom to form distorted OMgAlCo2 tetrahedra that share  a cornercorner with one O(6)MgAl2Co tetrahedra, corners with three equivalent O(2)Al2Co2 tetrahedra, and  an edgeedge with one O(6)MgAl2Co tetrahedra. In the second O site, O(2) is bonded to one Co(1), one Co(2), one Al(1), and one Al(2) atom to form OAl2Co2 tetrahedra that share corners with three equivalent O(6)MgAl2Co tetrahedra and corners with three equivalent O(1)MgAlCo2 tetrahedra. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(1), one Al(1), and one Al(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(1), one Co(2), and one Al(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Co(1), one Co(2), and one Al(1) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Co(2), one Al(1), and one Al(2) atom to form distorted OMgAl2Co tetrahedra that share  a cornercorner with one O(1)MgAlCo2 tetrahedra, corners with three equivalent O(2)Al2Co2 tetrahedra, and  an edgeedge with one O(1)MgAlCo2 tetrahedra. is represented by the CIF file [CIF]
data_MgAl2(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.703
_cell_length_b   5.354
_cell_length_c   5.804
_cell_angle_alpha   90.443
_cell_angle_beta   50.713
_cell_angle_gamma   114.470
_symmetry_Int_Tables_number   1
_cell_volume   116.396
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.920  0.755  0.342  1.0
  Al  Al1  1  0.192  0.397  0.869  1.0
  Al  Al2  1  0.557  0.489  0.088  1.0
  Co  Co3  1  0.388  0.964  0.506  1.0
  Co  Co4  1  0.732  0.114  0.706  1.0
  O  O5  1  0.887  0.792  0.717  1.0
  O  O6  1  0.741  0.251  0.031  1.0
  O  O7  1  0.465  0.628  0.401  1.0
  O  O8  1  0.541  0.311  0.625  1.0
  O  O9  1  0.271  0.740  0.926  1.0
  O  O10  1  0.125  0.221  0.220  1.0
[/CIF]
.