The material structure described by Y5O4F7 crystallizes in the monoclinic Pc space group. There are five inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(2), and one F(3) atom. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(2), one O(4), one F(2), one F(3), one F(4), one F(5), and one F(6) atom. In the third Y site, Y(3) is bonded to one O(1), one O(4), one F(1), one F(4), one F(7), and two equivalent F(5) atoms to form distorted corner-sharing YO2F5 pentagonal bipyramids. In the fourth Y site, Y(4) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one F(3), two equivalent F(6), and two equivalent F(7) atoms. In the fifth Y site, Y(5) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(3), one F(4), and one F(7) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Y(1), one Y(3), and one Y(4) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Y(1), one Y(2), one Y(4), and one Y(5) atom. In the third O site, O(3) is bonded to one Y(1), one Y(4), and two equivalent Y(5) atoms to form distorted corner-sharing OY4 tetrahedra. In the fourth O site, O(4) is bonded in a see-saw-like geometry to one Y(2), one Y(3), one Y(4), and one Y(5) atom. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a bent 120 degrees geometry to one Y(1) and one Y(3) atom. In the second F site, F(2) is bonded in a water-like geometry to one Y(1) and one Y(2) atom. In the third F site, F(3) is bonded in a trigonal non-coplanar geometry to one Y(1), one Y(2), and one Y(4) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one Y(2), one Y(3), and one Y(5) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Y(2) and two equivalent Y(3) atoms. In the sixth F site, F(6) is bonded in a distorted trigonal non-coplanar geometry to one Y(2) and two equivalent Y(4) atoms. In the seventh F site, F(7) is bonded in a 4-coordinate geometry to one Y(3), one Y(5), and two equivalent Y(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y5O4F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.856
_cell_length_b   6.788
_cell_length_c   8.222
_cell_angle_alpha   71.314
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.221
_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  0.782  0.248  0.627  1.0
  Y  Y1  1  0.783  0.867  0.421  1.0
  Y  Y2  1  0.150  0.550  0.667  1.0
  Y  Y3  1  0.516  0.622  0.734  1.0
  Y  Y4  1  0.577  0.139  0.054  1.0
  Y  Y5  1  0.484  0.622  0.234  1.0
  Y  Y6  1  0.423  0.139  0.554  1.0
  Y  Y7  1  0.850  0.550  0.167  1.0
  Y  Y8  1  0.217  0.867  0.921  1.0
  Y  Y9  1  0.218  0.248  0.127  1.0
  O  O10  1  0.303  0.454  0.885  1.0
  O  O11  1  0.640  0.982  0.604  1.0
  O  O12  1  0.571  0.271  0.769  1.0
  O  O13  1  0.705  0.834  0.151  1.0
  O  O14  1  0.295  0.834  0.651  1.0
  O  O15  1  0.429  0.271  0.269  1.0
  O  O16  1  0.697  0.454  0.385  1.0
  O  O17  1  0.360  0.982  0.104  1.0
  F  F18  1  0.968  0.321  0.782  1.0
  F  F19  1  0.060  0.005  0.069  1.0
  F  F20  1  0.236  0.595  0.160  1.0
  F  F21  1  0.222  0.184  0.718  1.0
  F  F22  1  0.985  0.656  0.416  1.0
  F  F23  1  0.472  0.780  0.930  1.0
  F  F24  1  0.344  0.493  0.501  1.0
  F  F25  1  0.656  0.493  0.001  1.0
  F  F26  1  0.528  0.780  0.430  1.0
  F  F27  1  0.778  0.184  0.218  1.0
  F  F28  1  0.015  0.656  0.916  1.0
  F  F29  1  0.940  0.005  0.569  1.0
  F  F30  1  0.764  0.595  0.660  1.0
  F  F31  1  0.032  0.321  0.282  1.0
[/CIF]
.
The material structure described by Y5O4F7 crystallizes in the monoclinic Pc space group. There are five inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(2), and one F(3) atom. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(2), one O(4), one F(2), one F(3), one F(4), one F(5), and one F(6) atom. In the third Y site, Y(3) is bonded to one O(1), one O(4), one F(1), one F(4), one F(7), and two equivalent F(5) atoms to form distorted corner-sharing YO2F5 pentagonal bipyramids. In the fourth Y site, Y(4) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one F(3), two equivalent F(6), and two equivalent F(7) atoms. In the fifth Y site, Y(5) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(3), one F(4), and one F(7) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Y(1), one Y(3), and one Y(4) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Y(1), one Y(2), one Y(4), and one Y(5) atom. In the third O site, O(3) is bonded to one Y(1), one Y(4), and two equivalent Y(5) atoms to form distorted corner-sharing OY4 tetrahedra. In the fourth O site, O(4) is bonded in a see-saw-like geometry to one Y(2), one Y(3), one Y(4), and one Y(5) atom. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a bent 120 degrees geometry to one Y(1) and one Y(3) atom. In the second F site, F(2) is bonded in a water-like geometry to one Y(1) and one Y(2) atom. In the third F site, F(3) is bonded in a trigonal non-coplanar geometry to one Y(1), one Y(2), and one Y(4) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one Y(2), one Y(3), and one Y(5) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Y(2) and two equivalent Y(3) atoms. In the sixth F site, F(6) is bonded in a distorted trigonal non-coplanar geometry to one Y(2) and two equivalent Y(4) atoms. In the seventh F site, F(7) is bonded in a 4-coordinate geometry to one Y(3), one Y(5), and two equivalent Y(4) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y5O4F7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.856
_cell_length_b   6.788
_cell_length_c   8.222
_cell_angle_alpha   71.314
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.221
_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  0.782  0.248  0.627  1.0
  Y  Y1  1  0.783  0.867  0.421  1.0
  Y  Y2  1  0.150  0.550  0.667  1.0
  Y  Y3  1  0.516  0.622  0.734  1.0
  Y  Y4  1  0.577  0.139  0.054  1.0
  Y  Y5  1  0.484  0.622  0.234  1.0
  Y  Y6  1  0.423  0.139  0.554  1.0
  Y  Y7  1  0.850  0.550  0.167  1.0
  Y  Y8  1  0.217  0.867  0.921  1.0
  Y  Y9  1  0.218  0.248  0.127  1.0
  O  O10  1  0.303  0.454  0.885  1.0
  O  O11  1  0.640  0.982  0.604  1.0
  O  O12  1  0.571  0.271  0.769  1.0
  O  O13  1  0.705  0.834  0.151  1.0
  O  O14  1  0.295  0.834  0.651  1.0
  O  O15  1  0.429  0.271  0.269  1.0
  O  O16  1  0.697  0.454  0.385  1.0
  O  O17  1  0.360  0.982  0.104  1.0
  F  F18  1  0.968  0.321  0.782  1.0
  F  F19  1  0.060  0.005  0.069  1.0
  F  F20  1  0.236  0.595  0.160  1.0
  F  F21  1  0.222  0.184  0.718  1.0
  F  F22  1  0.985  0.656  0.416  1.0
  F  F23  1  0.472  0.780  0.930  1.0
  F  F24  1  0.344  0.493  0.501  1.0
  F  F25  1  0.656  0.493  0.001  1.0
  F  F26  1  0.528  0.780  0.430  1.0
  F  F27  1  0.778  0.184  0.218  1.0
  F  F28  1  0.015  0.656  0.916  1.0
  F  F29  1  0.940  0.005  0.569  1.0
  F  F30  1  0.764  0.595  0.660  1.0
  F  F31  1  0.032  0.321  0.282  1.0
[/CIF]
.