The material described by Y2(OF)3 crystallizes in the hexagonal P-6 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted q6 geometry to three equivalent O(1) and six equivalent F(1) atoms. In the second Y site, Y(2) is bonded in a 9-coordinate geometry to six equivalent O(1) and three equivalent F(1) atoms. O(1) is bonded in a trigonal non-coplanar geometry to one Y(1) and two equivalent Y(2) atoms. F(1) is bonded in a trigonal non-coplanar geometry to one Y(2) and two equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_Y2(OF)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.808
_cell_length_b   5.808
_cell_length_c   3.893
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   113.755
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Y  Y1  1  0.333  0.667  0.500  1.0
  O  O2  1  0.103  0.450  0.000  1.0
  O  O3  1  0.347  0.897  0.000  1.0
  O  O4  1  0.550  0.653  0.000  1.0
  F  F5  1  0.267  0.238  0.500  1.0
  F  F6  1  0.971  0.733  0.500  1.0
  F  F7  1  0.762  0.029  0.500  1.0
[/CIF]
.
The material described by Y2(OF)3 crystallizes in the hexagonal P-6 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted q6 geometry to three equivalent O(1) and six equivalent F(1) atoms. In the second Y site, Y(2) is bonded in a 9-coordinate geometry to six equivalent O(1) and three equivalent F(1) atoms. O(1) is bonded in a trigonal non-coplanar geometry to one Y(1) and two equivalent Y(2) atoms. F(1) is bonded in a trigonal non-coplanar geometry to one Y(2) and two equivalent Y(1) atoms. is represented by the CIF file [CIF]
data_Y2(OF)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.808
_cell_length_b   5.808
_cell_length_c   3.893
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   113.755
_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
  Y  Y0  1  0.000  0.000  0.000  1.0
  Y  Y1  1  0.333  0.667  0.500  1.0
  O  O2  1  0.103  0.450  0.000  1.0
  O  O3  1  0.347  0.897  0.000  1.0
  O  O4  1  0.550  0.653  0.000  1.0
  F  F5  1  0.267  0.238  0.500  1.0
  F  F6  1  0.971  0.733  0.500  1.0
  F  F7  1  0.762  0.029  0.500  1.0
[/CIF]
.