The structure described by (Er3F10)2O2 crystallizes in the cubic Fm-3m space group. The structure consists of eight water atoms inside a Er3F10 framework. In the Er3F10 framework, Er(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Er(1) atoms. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to three equivalent Er(1) atoms. is represented by the CIF file [CIF]
data_Er3OF10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.133
_cell_length_b   8.133
_cell_length_c   8.133
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   380.357
_cell_formula_units_Z   2
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
  Er  Er0  1  0.759  0.241  0.241  1.0
  Er  Er1  1  0.241  0.759  0.759  1.0
  Er  Er2  1  0.241  0.759  0.241  1.0
  Er  Er3  1  0.759  0.241  0.759  1.0
  Er  Er4  1  0.241  0.241  0.759  1.0
  Er  Er5  1  0.759  0.759  0.241  1.0
  O  O6  1  0.250  0.250  0.250  1.0
  O  O7  1  0.750  0.750  0.750  1.0
  F  F8  1  0.828  0.500  0.500  1.0
  F  F9  1  0.172  0.500  0.500  1.0
  F  F10  1  0.500  0.828  0.172  1.0
  F  F11  1  0.500  0.172  0.828  1.0
  F  F12  1  0.500  0.828  0.500  1.0
  F  F13  1  0.172  0.500  0.828  1.0
  F  F14  1  0.500  0.172  0.500  1.0
  F  F15  1  0.828  0.500  0.172  1.0
  F  F16  1  0.500  0.500  0.828  1.0
  F  F17  1  0.500  0.500  0.172  1.0
  F  F18  1  0.172  0.828  0.500  1.0
  F  F19  1  0.828  0.172  0.500  1.0
  F  F20  1  0.113  0.113  0.113  1.0
  F  F21  1  0.887  0.887  0.887  1.0
  F  F22  1  0.113  0.113  0.661  1.0
  F  F23  1  0.113  0.661  0.113  1.0
  F  F24  1  0.887  0.887  0.339  1.0
  F  F25  1  0.887  0.339  0.887  1.0
  F  F26  1  0.661  0.113  0.113  1.0
  F  F27  1  0.339  0.887  0.887  1.0
[/CIF]
.
The structure described by (Er3F10)2O2 crystallizes in the cubic Fm-3m space group. The structure consists of eight water atoms inside a Er3F10 framework. In the Er3F10 framework, Er(1) is bonded in a 8-coordinate geometry to four equivalent F(1) and four equivalent F(2) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Er(1) atoms. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to three equivalent Er(1) atoms. is represented by the CIF file [CIF]
data_Er3OF10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.133
_cell_length_b   8.133
_cell_length_c   8.133
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   380.357
_cell_formula_units_Z   2
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
  Er  Er0  1  0.759  0.241  0.241  1.0
  Er  Er1  1  0.241  0.759  0.759  1.0
  Er  Er2  1  0.241  0.759  0.241  1.0
  Er  Er3  1  0.759  0.241  0.759  1.0
  Er  Er4  1  0.241  0.241  0.759  1.0
  Er  Er5  1  0.759  0.759  0.241  1.0
  O  O6  1  0.250  0.250  0.250  1.0
  O  O7  1  0.750  0.750  0.750  1.0
  F  F8  1  0.828  0.500  0.500  1.0
  F  F9  1  0.172  0.500  0.500  1.0
  F  F10  1  0.500  0.828  0.172  1.0
  F  F11  1  0.500  0.172  0.828  1.0
  F  F12  1  0.500  0.828  0.500  1.0
  F  F13  1  0.172  0.500  0.828  1.0
  F  F14  1  0.500  0.172  0.500  1.0
  F  F15  1  0.828  0.500  0.172  1.0
  F  F16  1  0.500  0.500  0.828  1.0
  F  F17  1  0.500  0.500  0.172  1.0
  F  F18  1  0.172  0.828  0.500  1.0
  F  F19  1  0.828  0.172  0.500  1.0
  F  F20  1  0.113  0.113  0.113  1.0
  F  F21  1  0.887  0.887  0.887  1.0
  F  F22  1  0.113  0.113  0.661  1.0
  F  F23  1  0.113  0.661  0.113  1.0
  F  F24  1  0.887  0.887  0.339  1.0
  F  F25  1  0.887  0.339  0.887  1.0
  F  F26  1  0.661  0.113  0.113  1.0
  F  F27  1  0.339  0.887  0.887  1.0
[/CIF]
.