The compound described by Cd2Se3O13(NO)2 crystallizes in the monoclinic P2_1/m space group. The structure consists of two 1,3,2,4-dioxadiazetidine molecules inside a Cd2Se3O13 framework. In the Cd2Se3O13 framework, Cd(1) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CdO6 octahedra that share corners with four equivalent Se(2)O4 tetrahedra. 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) and two equivalent O(3) atoms. In the second Se site, Se(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SeO4 tetrahedra that share corners with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-59°. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(2) atom. In the second O site, O(8) is bonded in a single-bond geometry to one Cd(1) atom. In the third O site, O(1) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one Se(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(2) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one Se(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd2Se3N2O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.233
_cell_length_b   5.237
_cell_length_c   7.113
_cell_angle_alpha   85.860
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   714.593
_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  0.574  0.786  0.242  1.0
  Cd  Cd1  1  0.074  0.214  0.758  1.0
  Cd  Cd2  1  0.426  0.214  0.758  1.0
  Cd  Cd3  1  0.926  0.786  0.242  1.0
  Se  Se4  1  0.250  0.033  0.664  1.0
  Se  Se5  1  0.750  0.967  0.336  1.0
  Se  Se6  1  0.552  0.687  0.763  1.0
  Se  Se7  1  0.052  0.313  0.237  1.0
  Se  Se8  1  0.448  0.313  0.237  1.0
  Se  Se9  1  0.948  0.687  0.763  1.0
  N  N10  1  0.699  0.311  0.809  1.0
  N  N11  1  0.199  0.689  0.191  1.0
  N  N12  1  0.301  0.689  0.191  1.0
  N  N13  1  0.801  0.311  0.809  1.0
  O  O14  1  0.250  0.347  0.580  1.0
  O  O15  1  0.750  0.653  0.420  1.0
  O  O16  1  0.250  0.846  0.253  1.0
  O  O17  1  0.750  0.154  0.747  1.0
  O  O18  1  0.322  0.972  0.797  1.0
  O  O19  1  0.822  0.028  0.203  1.0
  O  O20  1  0.678  0.028  0.203  1.0
  O  O21  1  0.178  0.972  0.797  1.0
  O  O22  1  0.476  0.823  0.808  1.0
  O  O23  1  0.976  0.177  0.192  1.0
  O  O24  1  0.524  0.177  0.192  1.0
  O  O25  1  0.024  0.823  0.808  1.0
  O  O26  1  0.465  0.617  0.283  1.0
  O  O27  1  0.965  0.383  0.717  1.0
  O  O28  1  0.535  0.383  0.717  1.0
  O  O29  1  0.035  0.617  0.283  1.0
  O  O30  1  0.593  0.833  0.572  1.0
  O  O31  1  0.093  0.167  0.428  1.0
  O  O32  1  0.407  0.167  0.428  1.0
  O  O33  1  0.907  0.833  0.572  1.0
  O  O34  1  0.607  0.703  0.943  1.0
  O  O35  1  0.107  0.297  0.057  1.0
  O  O36  1  0.393  0.297  0.057  1.0
  O  O37  1  0.893  0.703  0.943  1.0
  O  O38  1  0.638  0.490  0.435  1.0
  O  O39  1  0.138  0.510  0.565  1.0
  O  O40  1  0.362  0.510  0.565  1.0
  O  O41  1  0.862  0.490  0.435  1.0
  O  O42  1  0.250  0.532  0.132  1.0
  O  O43  1  0.750  0.468  0.868  1.0
[/CIF]
.
The compound described by Cd2Se3O13(NO)2 crystallizes in the monoclinic P2_1/m space group. The structure consists of two 1,3,2,4-dioxadiazetidine molecules inside a Cd2Se3O13 framework. In the Cd2Se3O13 framework, Cd(1) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CdO6 octahedra that share corners with four equivalent Se(2)O4 tetrahedra. 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) and two equivalent O(3) atoms. In the second Se site, Se(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SeO4 tetrahedra that share corners with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-59°. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(2) atom. In the second O site, O(8) is bonded in a single-bond geometry to one Cd(1) atom. In the third O site, O(1) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(3) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(1) atom. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one Se(2) atom. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Cd(1) and one Se(2) atom. In the seventh O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one Se(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd2Se3N2O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.233
_cell_length_b   5.237
_cell_length_c   7.113
_cell_angle_alpha   85.860
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   714.593
_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  0.574  0.786  0.242  1.0
  Cd  Cd1  1  0.074  0.214  0.758  1.0
  Cd  Cd2  1  0.426  0.214  0.758  1.0
  Cd  Cd3  1  0.926  0.786  0.242  1.0
  Se  Se4  1  0.250  0.033  0.664  1.0
  Se  Se5  1  0.750  0.967  0.336  1.0
  Se  Se6  1  0.552  0.687  0.763  1.0
  Se  Se7  1  0.052  0.313  0.237  1.0
  Se  Se8  1  0.448  0.313  0.237  1.0
  Se  Se9  1  0.948  0.687  0.763  1.0
  N  N10  1  0.699  0.311  0.809  1.0
  N  N11  1  0.199  0.689  0.191  1.0
  N  N12  1  0.301  0.689  0.191  1.0
  N  N13  1  0.801  0.311  0.809  1.0
  O  O14  1  0.250  0.347  0.580  1.0
  O  O15  1  0.750  0.653  0.420  1.0
  O  O16  1  0.250  0.846  0.253  1.0
  O  O17  1  0.750  0.154  0.747  1.0
  O  O18  1  0.322  0.972  0.797  1.0
  O  O19  1  0.822  0.028  0.203  1.0
  O  O20  1  0.678  0.028  0.203  1.0
  O  O21  1  0.178  0.972  0.797  1.0
  O  O22  1  0.476  0.823  0.808  1.0
  O  O23  1  0.976  0.177  0.192  1.0
  O  O24  1  0.524  0.177  0.192  1.0
  O  O25  1  0.024  0.823  0.808  1.0
  O  O26  1  0.465  0.617  0.283  1.0
  O  O27  1  0.965  0.383  0.717  1.0
  O  O28  1  0.535  0.383  0.717  1.0
  O  O29  1  0.035  0.617  0.283  1.0
  O  O30  1  0.593  0.833  0.572  1.0
  O  O31  1  0.093  0.167  0.428  1.0
  O  O32  1  0.407  0.167  0.428  1.0
  O  O33  1  0.907  0.833  0.572  1.0
  O  O34  1  0.607  0.703  0.943  1.0
  O  O35  1  0.107  0.297  0.057  1.0
  O  O36  1  0.393  0.297  0.057  1.0
  O  O37  1  0.893  0.703  0.943  1.0
  O  O38  1  0.638  0.490  0.435  1.0
  O  O39  1  0.138  0.510  0.565  1.0
  O  O40  1  0.362  0.510  0.565  1.0
  O  O41  1  0.862  0.490  0.435  1.0
  O  O42  1  0.250  0.532  0.132  1.0
  O  O43  1  0.750  0.468  0.868  1.0
[/CIF]
.