The material structure described by K2Zn3(SeO3)4 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and two equivalent O(5) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(5), and one O(6) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one Zn(2), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Zn(1), and one Se(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Zn(1), one Zn(2), and one Se(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Zn(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Zn(1), and one Se(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one Zn(1), and one Se(2) atom. is represented by the CIF file [CIF]
data_K2Zn3(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.297
_cell_length_b   7.297
_cell_length_c   14.013
_cell_angle_alpha   87.332
_cell_angle_beta   87.332
_cell_angle_gamma   74.513
_symmetry_Int_Tables_number   1
_cell_volume   717.718
_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  0.798  0.783  0.983  1.0
  K  K1  1  0.217  0.202  0.517  1.0
  K  K2  1  0.202  0.217  0.017  1.0
  K  K3  1  0.783  0.798  0.483  1.0
  Zn  Zn4  1  0.323  0.626  0.898  1.0
  Zn  Zn5  1  0.374  0.677  0.602  1.0
  Zn  Zn6  1  0.677  0.374  0.102  1.0
  Zn  Zn7  1  0.626  0.323  0.398  1.0
  Zn  Zn8  1  0.001  0.999  0.750  1.0
  Zn  Zn9  1  0.999  0.001  0.250  1.0
  Se  Se10  1  0.022  0.583  0.722  1.0
  Se  Se11  1  0.417  0.978  0.778  1.0
  Se  Se12  1  0.978  0.417  0.278  1.0
  Se  Se13  1  0.583  0.022  0.222  1.0
  Se  Se14  1  0.677  0.282  0.629  1.0
  Se  Se15  1  0.718  0.323  0.871  1.0
  Se  Se16  1  0.323  0.718  0.371  1.0
  Se  Se17  1  0.282  0.677  0.129  1.0
  O  O18  1  0.923  0.802  0.668  1.0
  O  O19  1  0.198  0.077  0.832  1.0
  O  O20  1  0.077  0.198  0.332  1.0
  O  O21  1  0.802  0.923  0.168  1.0
  O  O22  1  0.231  0.498  0.654  1.0
  O  O23  1  0.502  0.769  0.846  1.0
  O  O24  1  0.769  0.502  0.346  1.0
  O  O25  1  0.498  0.231  0.154  1.0
  O  O26  1  0.088  0.677  0.824  1.0
  O  O27  1  0.323  0.912  0.676  1.0
  O  O28  1  0.912  0.323  0.176  1.0
  O  O29  1  0.677  0.088  0.324  1.0
  O  O30  1  0.919  0.212  0.646  1.0
  O  O31  1  0.788  0.081  0.854  1.0
  O  O32  1  0.081  0.788  0.354  1.0
  O  O33  1  0.212  0.919  0.146  1.0
  O  O34  1  0.652  0.179  0.523  1.0
  O  O35  1  0.821  0.348  0.977  1.0
  O  O36  1  0.348  0.821  0.477  1.0
  O  O37  1  0.179  0.652  0.023  1.0
  O  O38  1  0.645  0.518  0.592  1.0
  O  O39  1  0.482  0.355  0.908  1.0
  O  O40  1  0.355  0.482  0.408  1.0
  O  O41  1  0.518  0.645  0.092  1.0
[/CIF]
.
The material structure described by K2Zn3(SeO3)4 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), and two equivalent O(5) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a tetrahedral geometry to one O(2), one O(3), one O(5), and one O(6) atom. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one Zn(2), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Zn(1), and one Se(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Zn(1), one Zn(2), and one Se(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Zn(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Zn(1), and one Se(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one Zn(1), and one Se(2) atom. is represented by the CIF file [CIF]
data_K2Zn3(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.297
_cell_length_b   7.297
_cell_length_c   14.013
_cell_angle_alpha   87.332
_cell_angle_beta   87.332
_cell_angle_gamma   74.513
_symmetry_Int_Tables_number   1
_cell_volume   717.718
_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  0.798  0.783  0.983  1.0
  K  K1  1  0.217  0.202  0.517  1.0
  K  K2  1  0.202  0.217  0.017  1.0
  K  K3  1  0.783  0.798  0.483  1.0
  Zn  Zn4  1  0.323  0.626  0.898  1.0
  Zn  Zn5  1  0.374  0.677  0.602  1.0
  Zn  Zn6  1  0.677  0.374  0.102  1.0
  Zn  Zn7  1  0.626  0.323  0.398  1.0
  Zn  Zn8  1  0.001  0.999  0.750  1.0
  Zn  Zn9  1  0.999  0.001  0.250  1.0
  Se  Se10  1  0.022  0.583  0.722  1.0
  Se  Se11  1  0.417  0.978  0.778  1.0
  Se  Se12  1  0.978  0.417  0.278  1.0
  Se  Se13  1  0.583  0.022  0.222  1.0
  Se  Se14  1  0.677  0.282  0.629  1.0
  Se  Se15  1  0.718  0.323  0.871  1.0
  Se  Se16  1  0.323  0.718  0.371  1.0
  Se  Se17  1  0.282  0.677  0.129  1.0
  O  O18  1  0.923  0.802  0.668  1.0
  O  O19  1  0.198  0.077  0.832  1.0
  O  O20  1  0.077  0.198  0.332  1.0
  O  O21  1  0.802  0.923  0.168  1.0
  O  O22  1  0.231  0.498  0.654  1.0
  O  O23  1  0.502  0.769  0.846  1.0
  O  O24  1  0.769  0.502  0.346  1.0
  O  O25  1  0.498  0.231  0.154  1.0
  O  O26  1  0.088  0.677  0.824  1.0
  O  O27  1  0.323  0.912  0.676  1.0
  O  O28  1  0.912  0.323  0.176  1.0
  O  O29  1  0.677  0.088  0.324  1.0
  O  O30  1  0.919  0.212  0.646  1.0
  O  O31  1  0.788  0.081  0.854  1.0
  O  O32  1  0.081  0.788  0.354  1.0
  O  O33  1  0.212  0.919  0.146  1.0
  O  O34  1  0.652  0.179  0.523  1.0
  O  O35  1  0.821  0.348  0.977  1.0
  O  O36  1  0.348  0.821  0.477  1.0
  O  O37  1  0.179  0.652  0.023  1.0
  O  O38  1  0.645  0.518  0.592  1.0
  O  O39  1  0.482  0.355  0.908  1.0
  O  O40  1  0.355  0.482  0.408  1.0
  O  O41  1  0.518  0.645  0.092  1.0
[/CIF]
.