The structure described by (Al4As3O16)2(O2)7 crystallizes in the cubic P-43m space group. The structure consists of seven water atoms inside a Al4As3O16 framework. In the Al4As3O16 framework, Al(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form AlO6 octahedra that share corners with three equivalent As(1)O4 tetrahedra and edges with three equivalent Al(1)O6 octahedra. As(1) is bonded to four equivalent O(1) atoms to form AsO4 tetrahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal non-coplanar geometry to three equivalent Al(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Al(1) and one As(1) atom. is represented by the CIF card [CIF]
data_Al4As3O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.674
_cell_length_b   7.674
_cell_length_c   7.674
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   451.901
_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  0.859  0.859  0.141  1.0
  Al  Al1  1  0.859  0.141  0.859  1.0
  Al  Al2  1  0.141  0.859  0.859  1.0
  Al  Al3  1  0.141  0.141  0.141  1.0
  As  As4  1  0.000  0.000  0.500  1.0
  As  As5  1  0.000  0.500  0.000  1.0
  As  As6  1  0.500  0.000  0.000  1.0
  O  O7  1  0.618  0.866  0.134  1.0
  O  O8  1  0.866  0.866  0.382  1.0
  O  O9  1  0.866  0.618  0.134  1.0
  O  O10  1  0.618  0.134  0.866  1.0
  O  O11  1  0.866  0.134  0.618  1.0
  O  O12  1  0.866  0.382  0.866  1.0
  O  O13  1  0.382  0.866  0.866  1.0
  O  O14  1  0.134  0.866  0.618  1.0
  O  O15  1  0.134  0.618  0.866  1.0
  O  O16  1  0.382  0.134  0.134  1.0
  O  O17  1  0.134  0.134  0.382  1.0
  O  O18  1  0.134  0.382  0.134  1.0
  O  O19  1  0.111  0.111  0.889  1.0
  O  O20  1  0.111  0.889  0.111  1.0
  O  O21  1  0.889  0.111  0.111  1.0
  O  O22  1  0.889  0.889  0.889  1.0
  O  O23  1  0.500  0.500  0.000  1.0
  O  O24  1  0.500  0.000  0.500  1.0
  O  O25  1  0.000  0.500  0.500  1.0
  O  O26  1  0.306  0.306  0.694  1.0
  O  O27  1  0.306  0.694  0.306  1.0
  O  O28  1  0.694  0.306  0.306  1.0
  O  O29  1  0.694  0.694  0.694  1.0
[/CIF]
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The structure described by (Al4As3O16)2(O2)7 crystallizes in the cubic P-43m space group. The structure consists of seven water atoms inside a Al4As3O16 framework. In the Al4As3O16 framework, Al(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form AlO6 octahedra that share corners with three equivalent As(1)O4 tetrahedra and edges with three equivalent Al(1)O6 octahedra. As(1) is bonded to four equivalent O(1) atoms to form AsO4 tetrahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal non-coplanar geometry to three equivalent Al(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Al(1) and one As(1) atom. is represented by the CIF card [CIF]
data_Al4As3O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.674
_cell_length_b   7.674
_cell_length_c   7.674
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   451.901
_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  0.859  0.859  0.141  1.0
  Al  Al1  1  0.859  0.141  0.859  1.0
  Al  Al2  1  0.141  0.859  0.859  1.0
  Al  Al3  1  0.141  0.141  0.141  1.0
  As  As4  1  0.000  0.000  0.500  1.0
  As  As5  1  0.000  0.500  0.000  1.0
  As  As6  1  0.500  0.000  0.000  1.0
  O  O7  1  0.618  0.866  0.134  1.0
  O  O8  1  0.866  0.866  0.382  1.0
  O  O9  1  0.866  0.618  0.134  1.0
  O  O10  1  0.618  0.134  0.866  1.0
  O  O11  1  0.866  0.134  0.618  1.0
  O  O12  1  0.866  0.382  0.866  1.0
  O  O13  1  0.382  0.866  0.866  1.0
  O  O14  1  0.134  0.866  0.618  1.0
  O  O15  1  0.134  0.618  0.866  1.0
  O  O16  1  0.382  0.134  0.134  1.0
  O  O17  1  0.134  0.134  0.382  1.0
  O  O18  1  0.134  0.382  0.134  1.0
  O  O19  1  0.111  0.111  0.889  1.0
  O  O20  1  0.111  0.889  0.111  1.0
  O  O21  1  0.889  0.111  0.111  1.0
  O  O22  1  0.889  0.889  0.889  1.0
  O  O23  1  0.500  0.500  0.000  1.0
  O  O24  1  0.500  0.000  0.500  1.0
  O  O25  1  0.000  0.500  0.500  1.0
  O  O26  1  0.306  0.306  0.694  1.0
  O  O27  1  0.306  0.694  0.306  1.0
  O  O28  1  0.694  0.306  0.306  1.0
  O  O29  1  0.694  0.694  0.694  1.0
[/CIF]
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