The material described by Al2(BiO3)3 crystallizes in the monoclinic Cc space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form distorted AlO6 octahedra that share corners with three equivalent Al(2)O6 octahedra,  a cornercorner with one Bi(3)O6 pentagonal pyramid,  an edgeedge with one Bi(3)O6 pentagonal pyramid, and edges with two equivalent Bi(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 31-40°. In the second Al site, Al(2) is bonded to one O(1), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with three equivalent Al(1)O6 octahedra, corners with two equivalent Bi(1)O6 pentagonal pyramids, edges with two equivalent Bi(3)O6 pentagonal pyramids, and  a faceface with one Bi(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 31-40°. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted BiO6 pentagonal pyramids that share corners with two equivalent Al(2)O6 octahedra, corners with three equivalent Bi(3)O6 pentagonal pyramids, edges with two equivalent Al(1)O6 octahedra, and  a faceface with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted BiO6 pentagonal pyramids that share  a cornercorner with one Al(1)O6 octahedra, corners with three equivalent Bi(1)O6 pentagonal pyramids,  an edgeedge with one Al(1)O6 octahedra, and edges with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Al(1), one Al(2), one Bi(1), and one Bi(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one Bi(2), and one Bi(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Al(2), one Bi(1), and one Bi(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Al(1), one Bi(1), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Al(2), one Bi(2), and one Bi(3) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Al(1), one Al(2), one Bi(1), and one Bi(3) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Al(1), one Bi(2), and one Bi(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Al(2), one Bi(1), and one Bi(3) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Al(1), one Al(2), one Bi(1), and one Bi(2) atom. is represented by the CIF file [CIF]
data_Al2(BiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   5.754
_cell_length_c   13.919
_cell_angle_alpha   86.718
_cell_angle_beta   86.718
_cell_angle_gamma   54.438
_symmetry_Int_Tables_number   1
_cell_volume   374.082
_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  0.050  0.029  0.757  1.0
  Al  Al1  1  0.380  0.374  0.108  1.0
  Al  Al2  1  0.374  0.380  0.608  1.0
  Al  Al3  1  0.029  0.050  0.257  1.0
  Bi  Bi4  1  0.661  0.652  0.651  1.0
  Bi  Bi5  1  0.303  0.334  0.347  1.0
  Bi  Bi6  1  0.974  0.980  0.986  1.0
  Bi  Bi7  1  0.334  0.303  0.847  1.0
  Bi  Bi8  1  0.980  0.974  0.486  1.0
  Bi  Bi9  1  0.652  0.661  0.151  1.0
  O  O10  1  0.664  0.277  0.712  1.0
  O  O11  1  0.261  0.974  0.367  1.0
  O  O12  1  0.005  0.590  0.064  1.0
  O  O13  1  0.444  0.880  0.776  1.0
  O  O14  1  0.142  0.519  0.501  1.0
  O  O15  1  0.786  0.198  0.145  1.0
  O  O16  1  0.012  0.794  0.845  1.0
  O  O17  1  0.640  0.439  0.532  1.0
  O  O18  1  0.357  0.102  0.186  1.0
  O  O19  1  0.974  0.261  0.867  1.0
  O  O20  1  0.590  0.005  0.564  1.0
  O  O21  1  0.277  0.664  0.212  1.0
  O  O22  1  0.102  0.357  0.686  1.0
  O  O23  1  0.794  0.012  0.345  1.0
  O  O24  1  0.439  0.640  0.032  1.0
  O  O25  1  0.198  0.786  0.645  1.0
  O  O26  1  0.880  0.444  0.276  1.0
  O  O27  1  0.519  0.142  0.001  1.0
[/CIF]
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The material described by Al2(BiO3)3 crystallizes in the monoclinic Cc space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(9) atom to form distorted AlO6 octahedra that share corners with three equivalent Al(2)O6 octahedra,  a cornercorner with one Bi(3)O6 pentagonal pyramid,  an edgeedge with one Bi(3)O6 pentagonal pyramid, and edges with two equivalent Bi(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 31-40°. In the second Al site, Al(2) is bonded to one O(1), one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with three equivalent Al(1)O6 octahedra, corners with two equivalent Bi(1)O6 pentagonal pyramids, edges with two equivalent Bi(3)O6 pentagonal pyramids, and  a faceface with one Bi(1)O6 pentagonal pyramid. The corner-sharing octahedral tilt angles range from 31-40°. There are three inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(3), one O(4), one O(6), one O(8), and one O(9) atom to form distorted BiO6 pentagonal pyramids that share corners with two equivalent Al(2)O6 octahedra, corners with three equivalent Bi(3)O6 pentagonal pyramids, edges with two equivalent Al(1)O6 octahedra, and  a faceface with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(2), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form distorted BiO6 pentagonal pyramids that share  a cornercorner with one Al(1)O6 octahedra, corners with three equivalent Bi(1)O6 pentagonal pyramids,  an edgeedge with one Al(1)O6 octahedra, and edges with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Al(1), one Al(2), one Bi(1), and one Bi(2) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Al(1), one Bi(2), and one Bi(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Al(2), one Bi(1), and one Bi(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Al(1), one Bi(1), and one Bi(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Al(2), one Bi(2), and one Bi(3) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Al(1), one Al(2), one Bi(1), and one Bi(3) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Al(1), one Bi(2), and one Bi(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Al(2), one Bi(1), and one Bi(3) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Al(1), one Al(2), one Bi(1), and one Bi(2) atom. is represented by the CIF file [CIF]
data_Al2(BiO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.754
_cell_length_b   5.754
_cell_length_c   13.919
_cell_angle_alpha   86.718
_cell_angle_beta   86.718
_cell_angle_gamma   54.438
_symmetry_Int_Tables_number   1
_cell_volume   374.082
_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  0.050  0.029  0.757  1.0
  Al  Al1  1  0.380  0.374  0.108  1.0
  Al  Al2  1  0.374  0.380  0.608  1.0
  Al  Al3  1  0.029  0.050  0.257  1.0
  Bi  Bi4  1  0.661  0.652  0.651  1.0
  Bi  Bi5  1  0.303  0.334  0.347  1.0
  Bi  Bi6  1  0.974  0.980  0.986  1.0
  Bi  Bi7  1  0.334  0.303  0.847  1.0
  Bi  Bi8  1  0.980  0.974  0.486  1.0
  Bi  Bi9  1  0.652  0.661  0.151  1.0
  O  O10  1  0.664  0.277  0.712  1.0
  O  O11  1  0.261  0.974  0.367  1.0
  O  O12  1  0.005  0.590  0.064  1.0
  O  O13  1  0.444  0.880  0.776  1.0
  O  O14  1  0.142  0.519  0.501  1.0
  O  O15  1  0.786  0.198  0.145  1.0
  O  O16  1  0.012  0.794  0.845  1.0
  O  O17  1  0.640  0.439  0.532  1.0
  O  O18  1  0.357  0.102  0.186  1.0
  O  O19  1  0.974  0.261  0.867  1.0
  O  O20  1  0.590  0.005  0.564  1.0
  O  O21  1  0.277  0.664  0.212  1.0
  O  O22  1  0.102  0.357  0.686  1.0
  O  O23  1  0.794  0.012  0.345  1.0
  O  O24  1  0.439  0.640  0.032  1.0
  O  O25  1  0.198  0.786  0.645  1.0
  O  O26  1  0.880  0.444  0.276  1.0
  O  O27  1  0.519  0.142  0.001  1.0
[/CIF]
.