The material structure described by Al5(CoO4)3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(6), and two equivalent O(7) atoms to form CoO4 tetrahedra that share corners with three equivalent Al(4)O6 octahedra and corners with six equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-61°. In the second Co site, Co(2) is bonded to one O(2), one O(4), and two equivalent O(9) atoms to form CoO4 tetrahedra that share corners with two equivalent Al(3)O6 octahedra, corners with two equivalent Al(4)O6 octahedra, corners with three equivalent Al(1)O6 octahedra, and corners with four equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-61°. In the third Co site, Co(3) is bonded to one O(1), one O(5), and two equivalent O(8) atoms to form CoO4 tetrahedra that share  a cornercorner with one Al(4)O6 octahedra, corners with two equivalent Al(2)O6 octahedra, corners with three equivalent Al(1)O6 octahedra, and corners with four equivalent Al(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-61°. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(4), one O(5), two equivalent O(8), and two equivalent O(9) atoms to form AlO6 octahedra that share corners with three equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(3)O4 tetrahedra,  an edgeedge with one Al(4)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(3)O6 octahedra. In the second Al site, Al(2) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form AlO6 octahedra that share  a cornercorner with one Co(3)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(1)O4 tetrahedra,  an edgeedge with one Al(1)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(4)O6 octahedra. In the third Al site, Al(3) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form AlO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(3)O4 tetrahedra, edges with two equivalent Al(1)O6 octahedra, and edges with two equivalent Al(3)O6 octahedra. In the fourth Al site, Al(4) is bonded to one O(1), one O(3), two equivalent O(7), and two equivalent O(9) atoms to form AlO6 octahedra that share  a cornercorner with one Co(3)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(1)O4 tetrahedra,  an edgeedge with one Al(1)O6 octahedra, and edges with four equivalent Al(2)O6 octahedra. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(3), one Al(4), and two equivalent Al(2) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Co(2) and two equivalent Al(3) atoms. In the third O site, O(3) is bonded to one Co(1), one Al(4), and two equivalent Al(2) atoms to form distorted edge-sharing OAl3Co tetrahedra. In the fourth O site, O(4) is bonded to one Co(2), one Al(1), and two equivalent Al(2) atoms to form a mixture of distorted corner and edge-sharing OAl3Co tetrahedra. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Co(3), one Al(1), and two equivalent Al(3) atoms. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Co(1) and two equivalent Al(2) atoms. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Co(1), one Al(2), and one Al(4) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Co(3), one Al(1), and one Al(3) atom. In the ninth O site, O(9) is bonded to one Co(2), one Al(1), one Al(2), and one Al(4) atom to form a mixture of distorted corner and edge-sharing OAl3Co trigonal pyramids. is represented by the CIF file [CIF]
data_Al5(CoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   5.754
_cell_length_c   13.990
_cell_angle_alpha   89.336
_cell_angle_beta   89.336
_cell_angle_gamma   59.873
_symmetry_Int_Tables_number   1
_cell_volume   400.601
_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  0.339  0.339  0.165  1.0
  Al  Al1  1  0.661  0.661  0.835  1.0
  Al  Al2  1  0.165  0.671  0.338  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.835  0.329  0.662  1.0
  Al  Al5  1  0.671  0.165  0.338  1.0
  Al  Al6  1  0.000  0.500  0.000  1.0
  Al  Al7  1  0.329  0.835  0.662  1.0
  Al  Al8  1  0.163  0.163  0.336  1.0
  Al  Al9  1  0.837  0.837  0.664  1.0
  Co  Co10  1  0.334  0.334  0.545  1.0
  Co  Co11  1  0.672  0.672  0.207  1.0
  Co  Co12  1  0.010  0.010  0.880  1.0
  Co  Co13  1  0.666  0.666  0.455  1.0
  Co  Co14  1  0.990  0.990  0.120  1.0
  Co  Co15  1  0.328  0.328  0.793  1.0
  O  O16  1  1.000  1.000  0.261  1.0
  O  O17  1  0.323  0.323  0.923  1.0
  O  O18  1  0.668  0.668  0.594  1.0
  O  O19  1  0.483  0.483  0.252  1.0
  O  O20  1  0.817  0.817  0.921  1.0
  O  O21  1  0.162  0.162  0.597  1.0
  O  O22  1  0.325  0.835  0.402  1.0
  O  O23  1  0.640  0.160  0.086  1.0
  O  O24  1  0.962  0.520  0.746  1.0
  O  O25  1  0.835  0.325  0.402  1.0
  O  O26  1  0.160  0.640  0.086  1.0
  O  O27  1  0.520  0.962  0.746  1.0
  O  O28  1  0.480  0.038  0.254  1.0
  O  O29  1  0.840  0.360  0.914  1.0
  O  O30  1  0.165  0.675  0.598  1.0
  O  O31  1  0.038  0.480  0.254  1.0
  O  O32  1  0.360  0.840  0.914  1.0
  O  O33  1  0.675  0.165  0.598  1.0
  O  O34  1  0.838  0.838  0.403  1.0
  O  O35  1  0.183  0.183  0.079  1.0
  O  O36  1  0.517  0.517  0.748  1.0
  O  O37  1  0.332  0.332  0.406  1.0
  O  O38  1  0.677  0.677  0.077  1.0
  O  O39  1  0.000  0.000  0.739  1.0
[/CIF]
.
The material structure described by Al5(CoO4)3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(6), and two equivalent O(7) atoms to form CoO4 tetrahedra that share corners with three equivalent Al(4)O6 octahedra and corners with six equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-61°. In the second Co site, Co(2) is bonded to one O(2), one O(4), and two equivalent O(9) atoms to form CoO4 tetrahedra that share corners with two equivalent Al(3)O6 octahedra, corners with two equivalent Al(4)O6 octahedra, corners with three equivalent Al(1)O6 octahedra, and corners with four equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-61°. In the third Co site, Co(3) is bonded to one O(1), one O(5), and two equivalent O(8) atoms to form CoO4 tetrahedra that share  a cornercorner with one Al(4)O6 octahedra, corners with two equivalent Al(2)O6 octahedra, corners with three equivalent Al(1)O6 octahedra, and corners with four equivalent Al(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-61°. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(4), one O(5), two equivalent O(8), and two equivalent O(9) atoms to form AlO6 octahedra that share corners with three equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(3)O4 tetrahedra,  an edgeedge with one Al(4)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(3)O6 octahedra. In the second Al site, Al(2) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form AlO6 octahedra that share  a cornercorner with one Co(3)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(1)O4 tetrahedra,  an edgeedge with one Al(1)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(4)O6 octahedra. In the third Al site, Al(3) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(8) atoms to form AlO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(3)O4 tetrahedra, edges with two equivalent Al(1)O6 octahedra, and edges with two equivalent Al(3)O6 octahedra. In the fourth Al site, Al(4) is bonded to one O(1), one O(3), two equivalent O(7), and two equivalent O(9) atoms to form AlO6 octahedra that share  a cornercorner with one Co(3)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(1)O4 tetrahedra,  an edgeedge with one Al(1)O6 octahedra, and edges with four equivalent Al(2)O6 octahedra. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(3), one Al(4), and two equivalent Al(2) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Co(2) and two equivalent Al(3) atoms. In the third O site, O(3) is bonded to one Co(1), one Al(4), and two equivalent Al(2) atoms to form distorted edge-sharing OAl3Co tetrahedra. In the fourth O site, O(4) is bonded to one Co(2), one Al(1), and two equivalent Al(2) atoms to form a mixture of distorted corner and edge-sharing OAl3Co tetrahedra. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Co(3), one Al(1), and two equivalent Al(3) atoms. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Co(1) and two equivalent Al(2) atoms. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Co(1), one Al(2), and one Al(4) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Co(3), one Al(1), and one Al(3) atom. In the ninth O site, O(9) is bonded to one Co(2), one Al(1), one Al(2), and one Al(4) atom to form a mixture of distorted corner and edge-sharing OAl3Co trigonal pyramids. is represented by the CIF file [CIF]
data_Al5(CoO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   5.754
_cell_length_c   13.990
_cell_angle_alpha   89.336
_cell_angle_beta   89.336
_cell_angle_gamma   59.873
_symmetry_Int_Tables_number   1
_cell_volume   400.601
_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  0.339  0.339  0.165  1.0
  Al  Al1  1  0.661  0.661  0.835  1.0
  Al  Al2  1  0.165  0.671  0.338  1.0
  Al  Al3  1  0.500  0.000  0.000  1.0
  Al  Al4  1  0.835  0.329  0.662  1.0
  Al  Al5  1  0.671  0.165  0.338  1.0
  Al  Al6  1  0.000  0.500  0.000  1.0
  Al  Al7  1  0.329  0.835  0.662  1.0
  Al  Al8  1  0.163  0.163  0.336  1.0
  Al  Al9  1  0.837  0.837  0.664  1.0
  Co  Co10  1  0.334  0.334  0.545  1.0
  Co  Co11  1  0.672  0.672  0.207  1.0
  Co  Co12  1  0.010  0.010  0.880  1.0
  Co  Co13  1  0.666  0.666  0.455  1.0
  Co  Co14  1  0.990  0.990  0.120  1.0
  Co  Co15  1  0.328  0.328  0.793  1.0
  O  O16  1  1.000  1.000  0.261  1.0
  O  O17  1  0.323  0.323  0.923  1.0
  O  O18  1  0.668  0.668  0.594  1.0
  O  O19  1  0.483  0.483  0.252  1.0
  O  O20  1  0.817  0.817  0.921  1.0
  O  O21  1  0.162  0.162  0.597  1.0
  O  O22  1  0.325  0.835  0.402  1.0
  O  O23  1  0.640  0.160  0.086  1.0
  O  O24  1  0.962  0.520  0.746  1.0
  O  O25  1  0.835  0.325  0.402  1.0
  O  O26  1  0.160  0.640  0.086  1.0
  O  O27  1  0.520  0.962  0.746  1.0
  O  O28  1  0.480  0.038  0.254  1.0
  O  O29  1  0.840  0.360  0.914  1.0
  O  O30  1  0.165  0.675  0.598  1.0
  O  O31  1  0.038  0.480  0.254  1.0
  O  O32  1  0.360  0.840  0.914  1.0
  O  O33  1  0.675  0.165  0.598  1.0
  O  O34  1  0.838  0.838  0.403  1.0
  O  O35  1  0.183  0.183  0.079  1.0
  O  O36  1  0.517  0.517  0.748  1.0
  O  O37  1  0.332  0.332  0.406  1.0
  O  O38  1  0.677  0.677  0.077  1.0
  O  O39  1  0.000  0.000  0.739  1.0
[/CIF]
.