The crystal structure described by (YFe3F14)2F2 crystallizes in the monoclinic P2_1/m space group. The structure consists of two hydrofluoric acid atoms inside a YFe3F14 framework. In the YFe3F14 framework, Y(1) is bonded to one F(1), one F(3), two equivalent F(5), and two equivalent F(8) atoms to form YF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra and corners with four equivalent Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 8-52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent F(4), two equivalent F(5), and two equivalent F(7) atoms to form FeF6 octahedra that share corners with two equivalent Y(1)F6 octahedra and edges with two equivalent Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second Fe site, Fe(2) is bonded to one F(4), one F(5), one F(8), one F(9), and two equivalent F(6) atoms to form FeF6 octahedra that share corners with two equivalent Y(1)F6 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 8-52°. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a single-bond geometry to one Y(1) atom. In the second F site, F(3) is bonded in a single-bond geometry to one Y(1) atom. In the third F site, F(4) is bonded in a water-like geometry to one Fe(1) and one Fe(2) atom. In the fourth F site, F(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Fe(1), and one Fe(2) atom. In the fifth F site, F(6) is bonded in a water-like geometry to two equivalent Fe(2) atoms. In the sixth F site, F(7) is bonded in a single-bond geometry to one Fe(1) atom. In the seventh F site, F(8) is bonded in a linear geometry to one Y(1) and one Fe(2) atom. In the eighth F site, F(9) is bonded in a single-bond geometry to one Fe(2) atom. is represented by the CIF card [CIF]
data_YFe3F15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.353
_cell_length_b   5.897
_cell_length_c   11.264
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   106.914
_symmetry_Int_Tables_number   1
_cell_volume   594.330
_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
  Y  Y0  1  0.928  0.517  0.250  1.0
  Y  Y1  1  0.405  0.483  0.750  1.0
  Fe  Fe2  1  0.167  0.000  0.500  1.0
  Fe  Fe3  1  0.511  0.032  0.508  1.0
  Fe  Fe4  1  0.822  0.968  0.492  1.0
  Fe  Fe5  1  0.167  0.000  0.000  1.0
  Fe  Fe6  1  0.511  0.032  0.992  1.0
  Fe  Fe7  1  0.822  0.968  0.008  1.0
  F  F8  1  0.170  0.602  0.250  1.0
  F  F9  1  0.377  0.609  0.250  1.0
  F  F10  1  0.734  0.615  0.250  1.0
  F  F11  1  0.164  0.398  0.750  1.0
  F  F12  1  0.599  0.385  0.750  1.0
  F  F13  1  0.957  0.391  0.750  1.0
  F  F14  1  0.020  0.104  0.578  1.0
  F  F15  1  0.353  0.170  0.604  1.0
  F  F16  1  0.705  0.127  0.590  1.0
  F  F17  1  0.314  0.896  0.422  1.0
  F  F18  1  0.628  0.873  0.410  1.0
  F  F19  1  0.980  0.830  0.396  1.0
  F  F20  1  0.129  0.750  0.907  1.0
  F  F21  1  0.448  0.761  0.886  1.0
  F  F22  1  0.779  0.707  0.917  1.0
  F  F23  1  0.205  0.250  0.093  1.0
  F  F24  1  0.555  0.293  0.083  1.0
  F  F25  1  0.885  0.239  0.114  1.0
  F  F26  1  0.205  0.250  0.407  1.0
  F  F27  1  0.555  0.293  0.417  1.0
  F  F28  1  0.885  0.239  0.386  1.0
  F  F29  1  0.129  0.750  0.593  1.0
  F  F30  1  0.448  0.761  0.614  1.0
  F  F31  1  0.779  0.707  0.583  1.0
  F  F32  1  0.020  0.104  0.922  1.0
  F  F33  1  0.353  0.170  0.896  1.0
  F  F34  1  0.705  0.127  0.910  1.0
  F  F35  1  0.314  0.896  0.078  1.0
  F  F36  1  0.628  0.873  0.090  1.0
  F  F37  1  0.980  0.830  0.104  1.0
[/CIF]
.
The crystal structure described by (YFe3F14)2F2 crystallizes in the monoclinic P2_1/m space group. The structure consists of two hydrofluoric acid atoms inside a YFe3F14 framework. In the YFe3F14 framework, Y(1) is bonded to one F(1), one F(3), two equivalent F(5), and two equivalent F(8) atoms to form YF6 octahedra that share corners with two equivalent Fe(1)F6 octahedra and corners with four equivalent Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 8-52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent F(4), two equivalent F(5), and two equivalent F(7) atoms to form FeF6 octahedra that share corners with two equivalent Y(1)F6 octahedra and edges with two equivalent Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles are 45°. In the second Fe site, Fe(2) is bonded to one F(4), one F(5), one F(8), one F(9), and two equivalent F(6) atoms to form FeF6 octahedra that share corners with two equivalent Y(1)F6 octahedra,  an edgeedge with one Fe(1)F6 octahedra, and  an edgeedge with one Fe(2)F6 octahedra. The corner-sharing octahedral tilt angles range from 8-52°. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a single-bond geometry to one Y(1) atom. In the second F site, F(3) is bonded in a single-bond geometry to one Y(1) atom. In the third F site, F(4) is bonded in a water-like geometry to one Fe(1) and one Fe(2) atom. In the fourth F site, F(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Fe(1), and one Fe(2) atom. In the fifth F site, F(6) is bonded in a water-like geometry to two equivalent Fe(2) atoms. In the sixth F site, F(7) is bonded in a single-bond geometry to one Fe(1) atom. In the seventh F site, F(8) is bonded in a linear geometry to one Y(1) and one Fe(2) atom. In the eighth F site, F(9) is bonded in a single-bond geometry to one Fe(2) atom. is represented by the CIF card [CIF]
data_YFe3F15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.353
_cell_length_b   5.897
_cell_length_c   11.264
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   106.914
_symmetry_Int_Tables_number   1
_cell_volume   594.330
_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
  Y  Y0  1  0.928  0.517  0.250  1.0
  Y  Y1  1  0.405  0.483  0.750  1.0
  Fe  Fe2  1  0.167  0.000  0.500  1.0
  Fe  Fe3  1  0.511  0.032  0.508  1.0
  Fe  Fe4  1  0.822  0.968  0.492  1.0
  Fe  Fe5  1  0.167  0.000  0.000  1.0
  Fe  Fe6  1  0.511  0.032  0.992  1.0
  Fe  Fe7  1  0.822  0.968  0.008  1.0
  F  F8  1  0.170  0.602  0.250  1.0
  F  F9  1  0.377  0.609  0.250  1.0
  F  F10  1  0.734  0.615  0.250  1.0
  F  F11  1  0.164  0.398  0.750  1.0
  F  F12  1  0.599  0.385  0.750  1.0
  F  F13  1  0.957  0.391  0.750  1.0
  F  F14  1  0.020  0.104  0.578  1.0
  F  F15  1  0.353  0.170  0.604  1.0
  F  F16  1  0.705  0.127  0.590  1.0
  F  F17  1  0.314  0.896  0.422  1.0
  F  F18  1  0.628  0.873  0.410  1.0
  F  F19  1  0.980  0.830  0.396  1.0
  F  F20  1  0.129  0.750  0.907  1.0
  F  F21  1  0.448  0.761  0.886  1.0
  F  F22  1  0.779  0.707  0.917  1.0
  F  F23  1  0.205  0.250  0.093  1.0
  F  F24  1  0.555  0.293  0.083  1.0
  F  F25  1  0.885  0.239  0.114  1.0
  F  F26  1  0.205  0.250  0.407  1.0
  F  F27  1  0.555  0.293  0.417  1.0
  F  F28  1  0.885  0.239  0.386  1.0
  F  F29  1  0.129  0.750  0.593  1.0
  F  F30  1  0.448  0.761  0.614  1.0
  F  F31  1  0.779  0.707  0.583  1.0
  F  F32  1  0.020  0.104  0.922  1.0
  F  F33  1  0.353  0.170  0.896  1.0
  F  F34  1  0.705  0.127  0.910  1.0
  F  F35  1  0.314  0.896  0.078  1.0
  F  F36  1  0.628  0.873  0.090  1.0
  F  F37  1  0.980  0.830  0.104  1.0
[/CIF]
.