The material structure described by CdSeO3.SeO2 crystallizes in the monoclinic C2/c space group. Cd(1) is bonded to two equivalent O(3) and four equivalent O(2) atoms to form edge-sharing CdO6 octahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Se(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Cd(1) and one Se(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_CdSe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.010
_cell_length_b   6.992
_cell_length_c   6.992
_cell_angle_alpha   109.194
_cell_angle_beta   106.530
_cell_angle_gamma   106.530
_symmetry_Int_Tables_number   1
_cell_volume   241.682
_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
  Cd  Cd0  1  0.250  0.589  0.411  1.0
  Cd  Cd1  1  0.750  0.411  0.589  1.0
  Se  Se2  1  0.884  0.997  0.714  1.0
  Se  Se3  1  0.616  0.286  0.003  1.0
  Se  Se4  1  0.116  0.003  0.286  1.0
  Se  Se5  1  0.384  0.714  0.997  1.0
  O  O6  1  0.750  0.086  0.914  1.0
  O  O7  1  0.250  0.914  0.086  1.0
  O  O8  1  0.685  0.725  0.595  1.0
  O  O9  1  0.815  0.405  0.275  1.0
  O  O10  1  0.315  0.275  0.405  1.0
  O  O11  1  0.185  0.595  0.725  1.0
  O  O12  1  0.272  0.520  0.076  1.0
  O  O13  1  0.228  0.924  0.480  1.0
  O  O14  1  0.728  0.480  0.924  1.0
  O  O15  1  0.772  0.076  0.520  1.0
[/CIF]
.
The material structure described by CdSeO3.SeO2 crystallizes in the monoclinic C2/c space group. Cd(1) is bonded to two equivalent O(3) and four equivalent O(2) atoms to form edge-sharing CdO6 octahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Se(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Cd(1) and one Se(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_CdSe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.010
_cell_length_b   6.992
_cell_length_c   6.992
_cell_angle_alpha   109.194
_cell_angle_beta   106.530
_cell_angle_gamma   106.530
_symmetry_Int_Tables_number   1
_cell_volume   241.682
_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
  Cd  Cd0  1  0.250  0.589  0.411  1.0
  Cd  Cd1  1  0.750  0.411  0.589  1.0
  Se  Se2  1  0.884  0.997  0.714  1.0
  Se  Se3  1  0.616  0.286  0.003  1.0
  Se  Se4  1  0.116  0.003  0.286  1.0
  Se  Se5  1  0.384  0.714  0.997  1.0
  O  O6  1  0.750  0.086  0.914  1.0
  O  O7  1  0.250  0.914  0.086  1.0
  O  O8  1  0.685  0.725  0.595  1.0
  O  O9  1  0.815  0.405  0.275  1.0
  O  O10  1  0.315  0.275  0.405  1.0
  O  O11  1  0.185  0.595  0.725  1.0
  O  O12  1  0.272  0.520  0.076  1.0
  O  O13  1  0.228  0.924  0.480  1.0
  O  O14  1  0.728  0.480  0.924  1.0
  O  O15  1  0.772  0.076  0.520  1.0
[/CIF]
.