The crystal structure described by (AlP2(HO4)2)2O2 crystallizes in the triclinic P-1 space group. The structure consists of three water atoms inside a AlP2(HO4)2 framework. In the AlP2(HO4)2 framework, there are two inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent O(12), two equivalent O(4), and two equivalent O(5) atoms to form AlO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(10), one O(2), one O(3), one O(6), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-52°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-46°. In the third P site, P(3) is bonded to one O(10), one O(11), one O(12), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-46°. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(11) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Al(2) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Al(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(2) and one H(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(2) and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Al(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(3) and one H(3) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one Al(1) and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_AlP2H2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.400
_cell_length_b   8.771
_cell_length_c   9.272
_cell_angle_alpha   64.454
_cell_angle_beta   69.274
_cell_angle_gamma   67.850
_symmetry_Int_Tables_number   1
_cell_volume   489.552
_cell_formula_units_Z   3
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  0.000  0.000  0.000  1.0
  Al  Al1  1  0.793  0.785  0.562  1.0
  Al  Al2  1  0.207  0.215  0.438  1.0
  P  P3  1  0.926  0.378  0.725  1.0
  P  P4  1  0.074  0.622  0.275  1.0
  P  P5  1  0.919  0.152  0.278  1.0
  P  P6  1  0.081  0.848  0.722  1.0
  P  P7  1  0.435  0.053  0.725  1.0
  P  P8  1  0.565  0.947  0.275  1.0
  H  H9  1  0.157  0.506  0.667  1.0
  H  H10  1  0.843  0.494  0.333  1.0
  H  H11  1  0.625  0.343  0.299  1.0
  H  H12  1  0.375  0.657  0.701  1.0
  H  H13  1  0.647  0.061  0.839  1.0
  H  H14  1  0.353  0.939  0.161  1.0
  O  O15  1  0.115  0.402  0.749  1.0
  O  O16  1  0.885  0.598  0.251  1.0
  O  O17  1  0.981  0.317  0.578  1.0
  O  O18  1  0.019  0.683  0.422  1.0
  O  O19  1  0.762  0.553  0.697  1.0
  O  O20  1  0.238  0.447  0.303  1.0
  O  O21  1  0.863  0.232  0.880  1.0
  O  O22  1  0.137  0.768  0.120  1.0
  O  O23  1  0.050  0.086  0.135  1.0
  O  O24  1  0.950  0.914  0.865  1.0
  O  O25  1  0.032  0.233  0.322  1.0
  O  O26  1  0.968  0.767  0.678  1.0
  O  O27  1  0.734  0.306  0.213  1.0
  O  O28  1  0.266  0.694  0.787  1.0
  O  O29  1  0.838  0.007  0.424  1.0
  O  O30  1  0.162  0.993  0.576  1.0
  O  O31  1  0.571  0.876  0.706  1.0
  O  O32  1  0.429  0.123  0.294  1.0
  O  O33  1  0.384  0.186  0.560  1.0
  O  O34  1  0.616  0.814  0.440  1.0
  O  O35  1  0.557  0.140  0.764  1.0
  O  O36  1  0.443  0.860  0.236  1.0
  O  O37  1  0.253  0.022  0.864  1.0
  O  O38  1  0.747  0.978  0.136  1.0
  O  O39  1  0.500  0.500  0.500  1.0
  O  O40  1  0.616  0.671  0.021  1.0
  O  O41  1  0.384  0.329  0.979  1.0
[/CIF]
.
The crystal structure described by (AlP2(HO4)2)2O2 crystallizes in the triclinic P-1 space group. The structure consists of three water atoms inside a AlP2(HO4)2 framework. In the AlP2(HO4)2 framework, there are two inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent O(12), two equivalent O(4), and two equivalent O(5) atoms to form AlO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. In the second Al site, Al(2) is bonded to one O(10), one O(2), one O(3), one O(6), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-52°. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-46°. In the third P site, P(3) is bonded to one O(10), one O(11), one O(12), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Al(1)O6 octahedra and corners with two equivalent Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 12-46°. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(11) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Al(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Al(2) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Al(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(2) and one H(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Al(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Al(2) and one P(3) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one Al(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one P(3) and one H(3) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one Al(1) and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_AlP2H2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.400
_cell_length_b   8.771
_cell_length_c   9.272
_cell_angle_alpha   64.454
_cell_angle_beta   69.274
_cell_angle_gamma   67.850
_symmetry_Int_Tables_number   1
_cell_volume   489.552
_cell_formula_units_Z   3
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  0.000  0.000  0.000  1.0
  Al  Al1  1  0.793  0.785  0.562  1.0
  Al  Al2  1  0.207  0.215  0.438  1.0
  P  P3  1  0.926  0.378  0.725  1.0
  P  P4  1  0.074  0.622  0.275  1.0
  P  P5  1  0.919  0.152  0.278  1.0
  P  P6  1  0.081  0.848  0.722  1.0
  P  P7  1  0.435  0.053  0.725  1.0
  P  P8  1  0.565  0.947  0.275  1.0
  H  H9  1  0.157  0.506  0.667  1.0
  H  H10  1  0.843  0.494  0.333  1.0
  H  H11  1  0.625  0.343  0.299  1.0
  H  H12  1  0.375  0.657  0.701  1.0
  H  H13  1  0.647  0.061  0.839  1.0
  H  H14  1  0.353  0.939  0.161  1.0
  O  O15  1  0.115  0.402  0.749  1.0
  O  O16  1  0.885  0.598  0.251  1.0
  O  O17  1  0.981  0.317  0.578  1.0
  O  O18  1  0.019  0.683  0.422  1.0
  O  O19  1  0.762  0.553  0.697  1.0
  O  O20  1  0.238  0.447  0.303  1.0
  O  O21  1  0.863  0.232  0.880  1.0
  O  O22  1  0.137  0.768  0.120  1.0
  O  O23  1  0.050  0.086  0.135  1.0
  O  O24  1  0.950  0.914  0.865  1.0
  O  O25  1  0.032  0.233  0.322  1.0
  O  O26  1  0.968  0.767  0.678  1.0
  O  O27  1  0.734  0.306  0.213  1.0
  O  O28  1  0.266  0.694  0.787  1.0
  O  O29  1  0.838  0.007  0.424  1.0
  O  O30  1  0.162  0.993  0.576  1.0
  O  O31  1  0.571  0.876  0.706  1.0
  O  O32  1  0.429  0.123  0.294  1.0
  O  O33  1  0.384  0.186  0.560  1.0
  O  O34  1  0.616  0.814  0.440  1.0
  O  O35  1  0.557  0.140  0.764  1.0
  O  O36  1  0.443  0.860  0.236  1.0
  O  O37  1  0.253  0.022  0.864  1.0
  O  O38  1  0.747  0.978  0.136  1.0
  O  O39  1  0.500  0.500  0.500  1.0
  O  O40  1  0.616  0.671  0.021  1.0
  O  O41  1  0.384  0.329  0.979  1.0
[/CIF]
.