The compound described by Al2(WO4)3 crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent Al(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-51°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with four equivalent Al(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. Al(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form AlO6 octahedra that share corners with two equivalent W(2)O6 octahedra, corners with six equivalent W(1)O6 octahedra, and  an edgeedge with one Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-51°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Al(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(2) and one Al(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one Al(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.630
_cell_length_b   5.496
_cell_length_c   7.599
_cell_angle_alpha   87.037
_cell_angle_beta   88.189
_cell_angle_gamma   88.219
_symmetry_Int_Tables_number   1
_cell_volume   192.933
_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
  Al  Al0  1  0.502  0.154  0.838  1.0
  Al  Al1  1  0.498  0.846  0.162  1.0
  W  W2  1  0.998  0.354  0.179  1.0
  W  W3  1  0.000  0.000  0.500  1.0
  W  W4  1  0.002  0.646  0.821  1.0
  O  O5  1  0.788  0.053  0.268  1.0
  O  O6  1  0.838  0.689  0.597  1.0
  O  O7  1  0.802  0.365  0.936  1.0
  O  O8  1  0.162  0.311  0.403  1.0
  O  O9  1  0.212  0.947  0.732  1.0
  O  O10  1  0.198  0.635  0.064  1.0
  O  O11  1  0.290  0.841  0.373  1.0
  O  O12  1  0.297  0.436  0.761  1.0
  O  O13  1  0.302  0.136  0.064  1.0
  O  O14  1  0.710  0.159  0.627  1.0
  O  O15  1  0.698  0.864  0.936  1.0
  O  O16  1  0.703  0.564  0.239  1.0
[/CIF]
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The compound described by Al2(WO4)3 crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent Al(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and  an edgeedge with one W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-51°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with four equivalent Al(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-50°. Al(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form AlO6 octahedra that share corners with two equivalent W(2)O6 octahedra, corners with six equivalent W(1)O6 octahedra, and  an edgeedge with one Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-51°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Al(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Al(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(2) and one Al(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one Al(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.630
_cell_length_b   5.496
_cell_length_c   7.599
_cell_angle_alpha   87.037
_cell_angle_beta   88.189
_cell_angle_gamma   88.219
_symmetry_Int_Tables_number   1
_cell_volume   192.933
_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
  Al  Al0  1  0.502  0.154  0.838  1.0
  Al  Al1  1  0.498  0.846  0.162  1.0
  W  W2  1  0.998  0.354  0.179  1.0
  W  W3  1  0.000  0.000  0.500  1.0
  W  W4  1  0.002  0.646  0.821  1.0
  O  O5  1  0.788  0.053  0.268  1.0
  O  O6  1  0.838  0.689  0.597  1.0
  O  O7  1  0.802  0.365  0.936  1.0
  O  O8  1  0.162  0.311  0.403  1.0
  O  O9  1  0.212  0.947  0.732  1.0
  O  O10  1  0.198  0.635  0.064  1.0
  O  O11  1  0.290  0.841  0.373  1.0
  O  O12  1  0.297  0.436  0.761  1.0
  O  O13  1  0.302  0.136  0.064  1.0
  O  O14  1  0.710  0.159  0.627  1.0
  O  O15  1  0.698  0.864  0.936  1.0
  O  O16  1  0.703  0.564  0.239  1.0
[/CIF]
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