The material structure described by K2Zn(SeO5)2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Zn(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with four equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SeO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one Zn(1), and one Se(1) atom. In the fourth O site, O(4) is bonded to two equivalent K(1), one Zn(1), and one Se(1) atom to form a mixture of distorted edge and corner-sharing OK2ZnSe tetrahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Zn(SeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.467
_cell_length_b   6.843
_cell_length_c   7.652
_cell_angle_alpha   110.828
_cell_angle_beta   93.442
_cell_angle_gamma   106.481
_symmetry_Int_Tables_number   1
_cell_volume   252.408
_cell_formula_units_Z   1
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  0.292  0.690  0.272  1.0
  K  K1  1  0.708  0.310  0.728  1.0
  Zn  Zn2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.364  0.699  0.775  1.0
  Se  Se4  1  0.636  0.301  0.225  1.0
  O  O5  1  0.401  0.876  0.668  1.0
  O  O6  1  0.599  0.124  0.332  1.0
  O  O7  1  0.263  0.436  0.625  1.0
  O  O8  1  0.737  0.564  0.375  1.0
  O  O9  1  0.641  0.744  0.918  1.0
  O  O10  1  0.359  0.256  0.082  1.0
  O  O11  1  0.141  0.729  0.921  1.0
  O  O12  1  0.859  0.271  0.079  1.0
  O  O13  1  0.025  0.006  0.256  1.0
  O  O14  1  0.975  0.994  0.744  1.0
[/CIF]
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The material structure described by K2Zn(SeO5)2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Zn(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with four equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SeO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one Zn(1), and one Se(1) atom. In the fourth O site, O(4) is bonded to two equivalent K(1), one Zn(1), and one Se(1) atom to form a mixture of distorted edge and corner-sharing OK2ZnSe tetrahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one Zn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Zn(SeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.467
_cell_length_b   6.843
_cell_length_c   7.652
_cell_angle_alpha   110.828
_cell_angle_beta   93.442
_cell_angle_gamma   106.481
_symmetry_Int_Tables_number   1
_cell_volume   252.408
_cell_formula_units_Z   1
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  0.292  0.690  0.272  1.0
  K  K1  1  0.708  0.310  0.728  1.0
  Zn  Zn2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.364  0.699  0.775  1.0
  Se  Se4  1  0.636  0.301  0.225  1.0
  O  O5  1  0.401  0.876  0.668  1.0
  O  O6  1  0.599  0.124  0.332  1.0
  O  O7  1  0.263  0.436  0.625  1.0
  O  O8  1  0.737  0.564  0.375  1.0
  O  O9  1  0.641  0.744  0.918  1.0
  O  O10  1  0.359  0.256  0.082  1.0
  O  O11  1  0.141  0.729  0.921  1.0
  O  O12  1  0.859  0.271  0.079  1.0
  O  O13  1  0.025  0.006  0.256  1.0
  O  O14  1  0.975  0.994  0.744  1.0
[/CIF]
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