The structure described by K2Be2Zn(O3F4)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one F(1), one F(3), two equivalent F(2), and two equivalent F(4) atoms. Be(1) is bonded in a tetrahedral geometry to one F(1), one F(2), one F(3), and one F(4) atom. Zn(1) is bonded in a distorted octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Zn(1) atom. There are four inequivalent F sites. In the first F site, F(4) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Be(1) atom. In the second F site, F(1) is bonded in a distorted single-bond geometry to one K(1) and one Be(1) atom. In the third F site, F(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Be(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one K(1) and one Be(1) atom. is represented by the CIF file [CIF]
data_K2Be2Zn(O3F4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.362
_cell_length_b   5.851
_cell_length_c   8.672
_cell_angle_alpha   74.526
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   555.589
_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
  K  K0  1  0.643  0.862  0.890  1.0
  K  K1  1  0.357  0.138  0.110  1.0
  K  K2  1  0.143  0.138  0.610  1.0
  K  K3  1  0.857  0.862  0.390  1.0
  Be  Be4  1  0.343  0.756  0.903  1.0
  Be  Be5  1  0.657  0.244  0.097  1.0
  Be  Be6  1  0.843  0.244  0.597  1.0
  Be  Be7  1  0.157  0.756  0.403  1.0
  Zn  Zn8  1  0.500  0.500  0.500  1.0
  Zn  Zn9  1  0.000  0.500  0.000  1.0
  O  O10  1  0.381  0.311  0.632  1.0
  O  O11  1  0.619  0.689  0.368  1.0
  O  O12  1  0.881  0.689  0.868  1.0
  O  O13  1  0.119  0.311  0.132  1.0
  O  O14  1  0.119  0.441  0.849  1.0
  O  O15  1  0.881  0.559  0.151  1.0
  O  O16  1  0.619  0.559  0.651  1.0
  O  O17  1  0.381  0.441  0.349  1.0
  O  O18  1  0.441  0.848  0.520  1.0
  O  O19  1  0.559  0.152  0.480  1.0
  O  O20  1  0.941  0.152  0.980  1.0
  O  O21  1  0.059  0.848  0.020  1.0
  F  F22  1  0.299  0.514  0.880  1.0
  F  F23  1  0.701  0.486  0.120  1.0
  F  F24  1  0.799  0.486  0.620  1.0
  F  F25  1  0.201  0.514  0.380  1.0
  F  F26  1  0.081  0.723  0.552  1.0
  F  F27  1  0.919  0.277  0.448  1.0
  F  F28  1  0.581  0.277  0.948  1.0
  F  F29  1  0.419  0.723  0.052  1.0
  F  F30  1  0.431  0.876  0.757  1.0
  F  F31  1  0.569  0.124  0.243  1.0
  F  F32  1  0.931  0.124  0.743  1.0
  F  F33  1  0.069  0.876  0.257  1.0
  F  F34  1  0.239  0.932  0.898  1.0
  F  F35  1  0.761  0.068  0.102  1.0
  F  F36  1  0.739  0.068  0.602  1.0
  F  F37  1  0.261  0.932  0.398  1.0
[/CIF]
.
The structure described by K2Be2Zn(O3F4)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one F(1), one F(3), two equivalent F(2), and two equivalent F(4) atoms. Be(1) is bonded in a tetrahedral geometry to one F(1), one F(2), one F(3), and one F(4) atom. Zn(1) is bonded in a distorted octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Zn(1) atom. There are four inequivalent F sites. In the first F site, F(4) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Be(1) atom. In the second F site, F(1) is bonded in a distorted single-bond geometry to one K(1) and one Be(1) atom. In the third F site, F(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Be(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one K(1) and one Be(1) atom. is represented by the CIF file [CIF]
data_K2Be2Zn(O3F4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.362
_cell_length_b   5.851
_cell_length_c   8.672
_cell_angle_alpha   74.526
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   555.589
_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
  K  K0  1  0.643  0.862  0.890  1.0
  K  K1  1  0.357  0.138  0.110  1.0
  K  K2  1  0.143  0.138  0.610  1.0
  K  K3  1  0.857  0.862  0.390  1.0
  Be  Be4  1  0.343  0.756  0.903  1.0
  Be  Be5  1  0.657  0.244  0.097  1.0
  Be  Be6  1  0.843  0.244  0.597  1.0
  Be  Be7  1  0.157  0.756  0.403  1.0
  Zn  Zn8  1  0.500  0.500  0.500  1.0
  Zn  Zn9  1  0.000  0.500  0.000  1.0
  O  O10  1  0.381  0.311  0.632  1.0
  O  O11  1  0.619  0.689  0.368  1.0
  O  O12  1  0.881  0.689  0.868  1.0
  O  O13  1  0.119  0.311  0.132  1.0
  O  O14  1  0.119  0.441  0.849  1.0
  O  O15  1  0.881  0.559  0.151  1.0
  O  O16  1  0.619  0.559  0.651  1.0
  O  O17  1  0.381  0.441  0.349  1.0
  O  O18  1  0.441  0.848  0.520  1.0
  O  O19  1  0.559  0.152  0.480  1.0
  O  O20  1  0.941  0.152  0.980  1.0
  O  O21  1  0.059  0.848  0.020  1.0
  F  F22  1  0.299  0.514  0.880  1.0
  F  F23  1  0.701  0.486  0.120  1.0
  F  F24  1  0.799  0.486  0.620  1.0
  F  F25  1  0.201  0.514  0.380  1.0
  F  F26  1  0.081  0.723  0.552  1.0
  F  F27  1  0.919  0.277  0.448  1.0
  F  F28  1  0.581  0.277  0.948  1.0
  F  F29  1  0.419  0.723  0.052  1.0
  F  F30  1  0.431  0.876  0.757  1.0
  F  F31  1  0.569  0.124  0.243  1.0
  F  F32  1  0.931  0.124  0.743  1.0
  F  F33  1  0.069  0.876  0.257  1.0
  F  F34  1  0.239  0.932  0.898  1.0
  F  F35  1  0.761  0.068  0.102  1.0
  F  F36  1  0.739  0.068  0.602  1.0
  F  F37  1  0.261  0.932  0.398  1.0
[/CIF]
.