The structure described by (Ge7O16)2(O2)7 crystallizes in the cubic P-43m space group. The structure consists of seven water atoms inside a Ge7O16 framework. In the Ge7O16 framework, there are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form GeO6 octahedra that share corners with three equivalent Ge(2)O4 tetrahedra and edges with three equivalent Ge(1)O6 octahedra. In the second Ge site, Ge(2) is bonded to four equivalent O(2) atoms to form corner-sharing GeO4 tetrahedra. 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 bent 120 degrees geometry to one Ge(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ge7O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.730
_cell_length_b   7.730
_cell_length_c   7.730
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   461.949
_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
  Ge  Ge0  1  0.856  0.856  0.144  1.0
  Ge  Ge1  1  0.856  0.144  0.856  1.0
  Ge  Ge2  1  0.144  0.856  0.856  1.0
  Ge  Ge3  1  0.144  0.144  0.144  1.0
  Ge  Ge4  1  0.000  0.000  0.500  1.0
  Ge  Ge5  1  0.000  0.500  0.000  1.0
  Ge  Ge6  1  0.500  0.000  0.000  1.0
  O  O7  1  0.115  0.885  0.115  1.0
  O  O8  1  0.885  0.885  0.885  1.0
  O  O9  1  0.885  0.115  0.115  1.0
  O  O10  1  0.115  0.115  0.885  1.0
  O  O11  1  0.863  0.863  0.381  1.0
  O  O12  1  0.863  0.619  0.137  1.0
  O  O13  1  0.619  0.863  0.137  1.0
  O  O14  1  0.863  0.137  0.619  1.0
  O  O15  1  0.863  0.381  0.863  1.0
  O  O16  1  0.619  0.137  0.863  1.0
  O  O17  1  0.137  0.863  0.619  1.0
  O  O18  1  0.137  0.619  0.863  1.0
  O  O19  1  0.381  0.863  0.863  1.0
  O  O20  1  0.137  0.137  0.381  1.0
  O  O21  1  0.137  0.381  0.137  1.0
  O  O22  1  0.381  0.137  0.137  1.0
  O  O23  1  0.500  0.000  0.500  1.0
  O  O24  1  0.000  0.500  0.500  1.0
  O  O25  1  0.500  0.500  0.000  1.0
  O  O26  1  0.337  0.663  0.337  1.0
  O  O27  1  0.663  0.663  0.663  1.0
  O  O28  1  0.663  0.337  0.337  1.0
  O  O29  1  0.337  0.337  0.663  1.0
[/CIF]
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The structure described by (Ge7O16)2(O2)7 crystallizes in the cubic P-43m space group. The structure consists of seven water atoms inside a Ge7O16 framework. In the Ge7O16 framework, there are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form GeO6 octahedra that share corners with three equivalent Ge(2)O4 tetrahedra and edges with three equivalent Ge(1)O6 octahedra. In the second Ge site, Ge(2) is bonded to four equivalent O(2) atoms to form corner-sharing GeO4 tetrahedra. 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 bent 120 degrees geometry to one Ge(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ge7O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.730
_cell_length_b   7.730
_cell_length_c   7.730
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   461.949
_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
  Ge  Ge0  1  0.856  0.856  0.144  1.0
  Ge  Ge1  1  0.856  0.144  0.856  1.0
  Ge  Ge2  1  0.144  0.856  0.856  1.0
  Ge  Ge3  1  0.144  0.144  0.144  1.0
  Ge  Ge4  1  0.000  0.000  0.500  1.0
  Ge  Ge5  1  0.000  0.500  0.000  1.0
  Ge  Ge6  1  0.500  0.000  0.000  1.0
  O  O7  1  0.115  0.885  0.115  1.0
  O  O8  1  0.885  0.885  0.885  1.0
  O  O9  1  0.885  0.115  0.115  1.0
  O  O10  1  0.115  0.115  0.885  1.0
  O  O11  1  0.863  0.863  0.381  1.0
  O  O12  1  0.863  0.619  0.137  1.0
  O  O13  1  0.619  0.863  0.137  1.0
  O  O14  1  0.863  0.137  0.619  1.0
  O  O15  1  0.863  0.381  0.863  1.0
  O  O16  1  0.619  0.137  0.863  1.0
  O  O17  1  0.137  0.863  0.619  1.0
  O  O18  1  0.137  0.619  0.863  1.0
  O  O19  1  0.381  0.863  0.863  1.0
  O  O20  1  0.137  0.137  0.381  1.0
  O  O21  1  0.137  0.381  0.137  1.0
  O  O22  1  0.381  0.137  0.137  1.0
  O  O23  1  0.500  0.000  0.500  1.0
  O  O24  1  0.000  0.500  0.500  1.0
  O  O25  1  0.500  0.500  0.000  1.0
  O  O26  1  0.337  0.663  0.337  1.0
  O  O27  1  0.663  0.663  0.663  1.0
  O  O28  1  0.663  0.337  0.337  1.0
  O  O29  1  0.337  0.337  0.663  1.0
[/CIF]
.