The crystal structure described by ZnSeO3 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. Se(1) is bonded in a trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Zn(1) and one Se(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to two equivalent Zn(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_ZnSeO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.136
_cell_length_b   6.004
_cell_length_c   7.810
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   240.839
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.500  0.000  0.500  1.0
  Zn  Zn1  1  0.000  0.500  0.500  1.0
  Zn  Zn2  1  0.000  0.500  0.000  1.0
  Zn  Zn3  1  0.500  0.000  0.000  1.0
  Se  Se4  1  0.015  0.972  0.750  1.0
  Se  Se5  1  0.515  0.528  0.250  1.0
  Se  Se6  1  0.485  0.472  0.750  1.0
  Se  Se7  1  0.985  0.028  0.250  1.0
  O  O8  1  0.866  0.189  0.422  1.0
  O  O9  1  0.366  0.311  0.578  1.0
  O  O10  1  0.634  0.689  0.078  1.0
  O  O11  1  0.134  0.811  0.922  1.0
  O  O12  1  0.134  0.811  0.578  1.0
  O  O13  1  0.634  0.689  0.422  1.0
  O  O14  1  0.366  0.311  0.922  1.0
  O  O15  1  0.866  0.189  0.078  1.0
  O  O16  1  0.320  0.078  0.250  1.0
  O  O17  1  0.820  0.422  0.750  1.0
  O  O18  1  0.180  0.578  0.250  1.0
  O  O19  1  0.680  0.922  0.750  1.0
[/CIF]
.
The crystal structure described by ZnSeO3 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. Se(1) is bonded in a trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Zn(1) and one Se(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to two equivalent Zn(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_ZnSeO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.136
_cell_length_b   6.004
_cell_length_c   7.810
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   240.839
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.500  0.000  0.500  1.0
  Zn  Zn1  1  0.000  0.500  0.500  1.0
  Zn  Zn2  1  0.000  0.500  0.000  1.0
  Zn  Zn3  1  0.500  0.000  0.000  1.0
  Se  Se4  1  0.015  0.972  0.750  1.0
  Se  Se5  1  0.515  0.528  0.250  1.0
  Se  Se6  1  0.485  0.472  0.750  1.0
  Se  Se7  1  0.985  0.028  0.250  1.0
  O  O8  1  0.866  0.189  0.422  1.0
  O  O9  1  0.366  0.311  0.578  1.0
  O  O10  1  0.634  0.689  0.078  1.0
  O  O11  1  0.134  0.811  0.922  1.0
  O  O12  1  0.134  0.811  0.578  1.0
  O  O13  1  0.634  0.689  0.422  1.0
  O  O14  1  0.366  0.311  0.922  1.0
  O  O15  1  0.866  0.189  0.078  1.0
  O  O16  1  0.320  0.078  0.250  1.0
  O  O17  1  0.820  0.422  0.750  1.0
  O  O18  1  0.180  0.578  0.250  1.0
  O  O19  1  0.680  0.922  0.750  1.0
[/CIF]
.