The material structure described by Al(OH)3 crystallizes in the orthorhombic P2_12_12_1 space group. Al(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing AlO6 octahedra. The corner-sharing octahedral tilt angles range from 39-44°. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al(HO)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.078
_cell_length_b   5.136
_cell_length_c   7.251
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   189.088
_cell_formula_units_Z   4
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  0.248  0.000  0.500  1.0
  Al  Al1  1  0.252  1.000  1.000  1.0
  Al  Al2  1  0.748  0.500  0.500  1.0
  Al  Al3  1  0.752  0.500  0.000  1.0
  H  H4  1  0.030  0.205  0.753  1.0
  H  H5  1  0.082  0.333  0.295  1.0
  H  H6  1  0.216  0.461  0.021  1.0
  H  H7  1  0.284  0.539  0.521  1.0
  H  H8  1  0.418  0.667  0.795  1.0
  H  H9  1  0.470  0.795  0.253  1.0
  H  H10  1  0.530  0.295  0.247  1.0
  H  H11  1  0.582  0.167  0.705  1.0
  H  H12  1  0.716  0.039  0.979  1.0
  H  H13  1  0.784  0.961  0.479  1.0
  H  H14  1  0.918  0.833  0.205  1.0
  H  H15  1  0.970  0.705  0.747  1.0
  O  O16  1  0.074  0.320  0.433  1.0
  O  O17  1  0.088  0.324  0.060  1.0
  O  O18  1  0.129  0.038  0.750  1.0
  O  O19  1  0.371  0.962  0.250  1.0
  O  O20  1  0.412  0.676  0.560  1.0
  O  O21  1  0.426  0.680  0.933  1.0
  O  O22  1  0.574  0.180  0.567  1.0
  O  O23  1  0.588  0.176  0.940  1.0
  O  O24  1  0.629  0.462  0.250  1.0
  O  O25  1  0.871  0.538  0.750  1.0
  O  O26  1  0.912  0.824  0.440  1.0
  O  O27  1  0.926  0.820  0.067  1.0
[/CIF]
.
The material structure described by Al(OH)3 crystallizes in the orthorhombic P2_12_12_1 space group. Al(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing AlO6 octahedra. The corner-sharing octahedral tilt angles range from 39-44°. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(2) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Al(1) and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al(HO)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.078
_cell_length_b   5.136
_cell_length_c   7.251
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   189.088
_cell_formula_units_Z   4
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  0.248  0.000  0.500  1.0
  Al  Al1  1  0.252  1.000  1.000  1.0
  Al  Al2  1  0.748  0.500  0.500  1.0
  Al  Al3  1  0.752  0.500  0.000  1.0
  H  H4  1  0.030  0.205  0.753  1.0
  H  H5  1  0.082  0.333  0.295  1.0
  H  H6  1  0.216  0.461  0.021  1.0
  H  H7  1  0.284  0.539  0.521  1.0
  H  H8  1  0.418  0.667  0.795  1.0
  H  H9  1  0.470  0.795  0.253  1.0
  H  H10  1  0.530  0.295  0.247  1.0
  H  H11  1  0.582  0.167  0.705  1.0
  H  H12  1  0.716  0.039  0.979  1.0
  H  H13  1  0.784  0.961  0.479  1.0
  H  H14  1  0.918  0.833  0.205  1.0
  H  H15  1  0.970  0.705  0.747  1.0
  O  O16  1  0.074  0.320  0.433  1.0
  O  O17  1  0.088  0.324  0.060  1.0
  O  O18  1  0.129  0.038  0.750  1.0
  O  O19  1  0.371  0.962  0.250  1.0
  O  O20  1  0.412  0.676  0.560  1.0
  O  O21  1  0.426  0.680  0.933  1.0
  O  O22  1  0.574  0.180  0.567  1.0
  O  O23  1  0.588  0.176  0.940  1.0
  O  O24  1  0.629  0.462  0.250  1.0
  O  O25  1  0.871  0.538  0.750  1.0
  O  O26  1  0.912  0.824  0.440  1.0
  O  O27  1  0.926  0.820  0.067  1.0
[/CIF]
.