The structure described by Yb5(BO3)2F9 crystallizes in the monoclinic C2/c space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 7-coordinate geometry to two equivalent O(2), one F(2), two equivalent F(1), and two equivalent F(4) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(3), one F(4), one F(5), and two equivalent F(2) atoms. In the third Yb site, Yb(3) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(3), and two equivalent F(5) atoms. B(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one F(5) atom. There are three inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Yb(2), two equivalent Yb(1), and one B(1) atom. In the second O site, O(3) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. There are five inequivalent F sites. In the first F site, F(5) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. In the second F site, F(3) is bonded in a distorted single-bond geometry to one Yb(3) and two equivalent Yb(2) atoms. In the third F site, F(1) is bonded in a distorted trigonal planar geometry to one Yb(2) and two equivalent Yb(1) atoms. In the fourth F site, F(2) is bonded in a distorted trigonal planar geometry to one Yb(1) and two equivalent Yb(2) atoms. In the fifth F site, F(4) is bonded in a trigonal planar geometry to one Yb(2) and two equivalent Yb(1) atoms. is represented by the CIF file [CIF]
data_Yb5B2(O2F3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.902
_cell_length_b   10.902
_cell_length_c   8.307
_cell_angle_alpha   83.913
_cell_angle_beta   83.913
_cell_angle_gamma   33.358
_symmetry_Int_Tables_number   1
_cell_volume   539.522
_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
  Yb  Yb0  1  0.843  0.586  0.686  1.0
  Yb  Yb1  1  0.414  0.157  0.814  1.0
  Yb  Yb2  1  0.157  0.414  0.314  1.0
  Yb  Yb3  1  0.586  0.843  0.186  1.0
  Yb  Yb4  1  0.030  0.216  0.106  1.0
  Yb  Yb5  1  0.784  0.970  0.394  1.0
  Yb  Yb6  1  0.970  0.784  0.894  1.0
  Yb  Yb7  1  0.216  0.030  0.606  1.0
  Yb  Yb8  1  0.673  0.327  0.750  1.0
  Yb  Yb9  1  0.327  0.673  0.250  1.0
  B  B10  1  0.550  0.633  0.946  1.0
  B  B11  1  0.367  0.450  0.554  1.0
  B  B12  1  0.450  0.367  0.054  1.0
  B  B13  1  0.633  0.550  0.446  1.0
  O  O14  1  0.363  0.808  0.050  1.0
  O  O15  1  0.192  0.637  0.450  1.0
  O  O16  1  0.637  0.192  0.950  1.0
  O  O17  1  0.808  0.363  0.550  1.0
  O  O18  1  0.681  0.631  0.954  1.0
  O  O19  1  0.369  0.319  0.546  1.0
  O  O20  1  0.319  0.369  0.046  1.0
  O  O21  1  0.631  0.681  0.454  1.0
  O  O22  1  0.682  0.492  0.282  1.0
  O  O23  1  0.508  0.318  0.218  1.0
  O  O24  1  0.318  0.508  0.718  1.0
  O  O25  1  0.492  0.682  0.782  1.0
  F  F26  1  0.118  0.303  0.527  1.0
  F  F27  1  0.697  0.882  0.973  1.0
  F  F28  1  0.882  0.697  0.473  1.0
  F  F29  1  0.303  0.118  0.027  1.0
  F  F30  1  0.016  0.263  0.820  1.0
  F  F31  1  0.737  0.984  0.680  1.0
  F  F32  1  0.984  0.737  0.180  1.0
  F  F33  1  0.263  0.016  0.320  1.0
  F  F34  1  0.009  0.991  0.750  1.0
  F  F35  1  0.991  0.009  0.250  1.0
  F  F36  1  0.483  0.937  0.688  1.0
  F  F37  1  0.063  0.517  0.812  1.0
  F  F38  1  0.517  0.063  0.312  1.0
  F  F39  1  0.937  0.483  0.188  1.0
  F  F40  1  0.684  0.408  0.995  1.0
  F  F41  1  0.592  0.316  0.505  1.0
  F  F42  1  0.316  0.592  0.005  1.0
  F  F43  1  0.408  0.684  0.495  1.0
[/CIF]
.
The structure described by Yb5(BO3)2F9 crystallizes in the monoclinic C2/c space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 7-coordinate geometry to two equivalent O(2), one F(2), two equivalent F(1), and two equivalent F(4) atoms. In the second Yb site, Yb(2) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(3), one F(4), one F(5), and two equivalent F(2) atoms. In the third Yb site, Yb(3) is bonded in a 7-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(3), and two equivalent F(5) atoms. B(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one F(5) atom. There are three inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Yb(2), two equivalent Yb(1), and one B(1) atom. In the second O site, O(3) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. There are five inequivalent F sites. In the first F site, F(5) is bonded in a distorted single-bond geometry to one Yb(2), one Yb(3), and one B(1) atom. In the second F site, F(3) is bonded in a distorted single-bond geometry to one Yb(3) and two equivalent Yb(2) atoms. In the third F site, F(1) is bonded in a distorted trigonal planar geometry to one Yb(2) and two equivalent Yb(1) atoms. In the fourth F site, F(2) is bonded in a distorted trigonal planar geometry to one Yb(1) and two equivalent Yb(2) atoms. In the fifth F site, F(4) is bonded in a trigonal planar geometry to one Yb(2) and two equivalent Yb(1) atoms. is represented by the CIF file [CIF]
data_Yb5B2(O2F3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.902
_cell_length_b   10.902
_cell_length_c   8.307
_cell_angle_alpha   83.913
_cell_angle_beta   83.913
_cell_angle_gamma   33.358
_symmetry_Int_Tables_number   1
_cell_volume   539.522
_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
  Yb  Yb0  1  0.843  0.586  0.686  1.0
  Yb  Yb1  1  0.414  0.157  0.814  1.0
  Yb  Yb2  1  0.157  0.414  0.314  1.0
  Yb  Yb3  1  0.586  0.843  0.186  1.0
  Yb  Yb4  1  0.030  0.216  0.106  1.0
  Yb  Yb5  1  0.784  0.970  0.394  1.0
  Yb  Yb6  1  0.970  0.784  0.894  1.0
  Yb  Yb7  1  0.216  0.030  0.606  1.0
  Yb  Yb8  1  0.673  0.327  0.750  1.0
  Yb  Yb9  1  0.327  0.673  0.250  1.0
  B  B10  1  0.550  0.633  0.946  1.0
  B  B11  1  0.367  0.450  0.554  1.0
  B  B12  1  0.450  0.367  0.054  1.0
  B  B13  1  0.633  0.550  0.446  1.0
  O  O14  1  0.363  0.808  0.050  1.0
  O  O15  1  0.192  0.637  0.450  1.0
  O  O16  1  0.637  0.192  0.950  1.0
  O  O17  1  0.808  0.363  0.550  1.0
  O  O18  1  0.681  0.631  0.954  1.0
  O  O19  1  0.369  0.319  0.546  1.0
  O  O20  1  0.319  0.369  0.046  1.0
  O  O21  1  0.631  0.681  0.454  1.0
  O  O22  1  0.682  0.492  0.282  1.0
  O  O23  1  0.508  0.318  0.218  1.0
  O  O24  1  0.318  0.508  0.718  1.0
  O  O25  1  0.492  0.682  0.782  1.0
  F  F26  1  0.118  0.303  0.527  1.0
  F  F27  1  0.697  0.882  0.973  1.0
  F  F28  1  0.882  0.697  0.473  1.0
  F  F29  1  0.303  0.118  0.027  1.0
  F  F30  1  0.016  0.263  0.820  1.0
  F  F31  1  0.737  0.984  0.680  1.0
  F  F32  1  0.984  0.737  0.180  1.0
  F  F33  1  0.263  0.016  0.320  1.0
  F  F34  1  0.009  0.991  0.750  1.0
  F  F35  1  0.991  0.009  0.250  1.0
  F  F36  1  0.483  0.937  0.688  1.0
  F  F37  1  0.063  0.517  0.812  1.0
  F  F38  1  0.517  0.063  0.312  1.0
  F  F39  1  0.937  0.483  0.188  1.0
  F  F40  1  0.684  0.408  0.995  1.0
  F  F41  1  0.592  0.316  0.505  1.0
  F  F42  1  0.316  0.592  0.005  1.0
  F  F43  1  0.408  0.684  0.495  1.0
[/CIF]
.