The material structure described by V4Cd(SeO6)3 crystallizes in the triclinic P-1 space group. There are four inequivalent V sites. In the first V site, V(1) is bonded in a 5-coordinate geometry to one O(1), one O(15), one O(4), and two equivalent O(2) atoms. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(12), one O(16), and one O(5) atom. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(12), one O(17), one O(6), one O(8), and two equivalent O(13) atoms. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(7), and one O(9) atom. Cd(1) is bonded to one O(1), one O(18), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form distorted edge-sharing CdO7 pentagonal bipyramids. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(6), one O(7), and one O(8) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(3), one O(4), and one O(9) atom. In the third Se site, Se(3) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(11), and one O(5) atom. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(1), one V(2), and one Cd(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent V(1) and one Cd(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Cd(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one V(1), one Cd(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one V(2), one Cd(1), and one Se(3) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one V(3) and one Se(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one V(4) and one Se(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one V(3) and one Se(1) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one V(4) and one Se(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one V(2) and one Se(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one V(4) and one Se(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one V(2), one V(3), and one V(4) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one V(4) and two equivalent V(3) atoms. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one V(4) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one V(1) atom. In the sixteenth O site, O(16) is bonded in a single-bond geometry to one V(2) atom. In the seventeenth O site, O(17) is bonded in a single-bond geometry to one V(3) atom. In the eighteenth O site, O(18) is bonded in a single-bond geometry to one Cd(1) atom. is represented by the CIF file [CIF]
data_V4Cd(SeO6)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.414
_cell_length_b   7.626
_cell_length_c   16.027
_cell_angle_alpha   101.269
_cell_angle_beta   98.904
_cell_angle_gamma   93.629
_symmetry_Int_Tables_number   1
_cell_volume   756.015
_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
  V  V0  1  0.158  0.379  0.519  1.0
  V  V1  1  0.842  0.621  0.481  1.0
  V  V2  1  0.461  0.546  0.710  1.0
  V  V3  1  0.539  0.454  0.290  1.0
  V  V4  1  0.565  0.645  0.939  1.0
  V  V5  1  0.435  0.355  0.061  1.0
  V  V6  1  0.328  0.229  0.835  1.0
  V  V7  1  0.672  0.771  0.165  1.0
  Cd  Cd8  1  0.678  0.207  0.575  1.0
  Cd  Cd9  1  0.322  0.793  0.425  1.0
  Se  Se10  1  0.815  0.277  0.942  1.0
  Se  Se11  1  0.185  0.723  0.058  1.0
  Se  Se12  1  0.207  0.037  0.629  1.0
  Se  Se13  1  0.793  0.963  0.371  1.0
  Se  Se14  1  0.997  0.531  0.772  1.0
  Se  Se15  1  0.003  0.469  0.228  1.0
  O  O16  1  0.414  0.416  0.594  1.0
  O  O17  1  0.586  0.584  0.406  1.0
  O  O18  1  0.854  0.393  0.504  1.0
  O  O19  1  0.146  0.607  0.496  1.0
  O  O20  1  0.611  0.006  0.437  1.0
  O  O21  1  0.389  0.994  0.563  1.0
  O  O22  1  0.052  0.180  0.578  1.0
  O  O23  1  0.948  0.820  0.422  1.0
  O  O24  1  0.749  0.453  0.708  1.0
  O  O25  1  0.251  0.547  0.292  1.0
  O  O26  1  0.703  0.272  0.035  1.0
  O  O27  1  0.297  0.728  0.965  1.0
  O  O28  1  0.622  0.175  0.856  1.0
  O  O29  1  0.378  0.825  0.144  1.0
  O  O30  1  0.808  0.501  0.932  1.0
  O  O31  1  0.192  0.499  0.068  1.0
  O  O32  1  0.367  0.195  0.713  1.0
  O  O33  1  0.633  0.805  0.287  1.0
  O  O34  1  0.145  0.539  0.690  1.0
  O  O35  1  0.855  0.461  0.310  1.0
  O  O36  1  0.054  0.329  0.800  1.0
  O  O37  1  0.946  0.671  0.200  1.0
  O  O38  1  0.456  0.530  0.822  1.0
  O  O39  1  0.544  0.470  0.178  1.0
  O  O40  1  0.624  0.633  0.057  1.0
  O  O41  1  0.376  0.367  0.943  1.0
  O  O42  1  0.211  0.038  0.840  1.0
  O  O43  1  0.789  0.962  0.160  1.0
  O  O44  1  0.210  0.256  0.432  1.0
  O  O45  1  0.790  0.744  0.568  1.0
  O  O46  1  0.517  0.755  0.710  1.0
  O  O47  1  0.483  0.245  0.290  1.0
  O  O48  1  0.689  0.830  0.931  1.0
  O  O49  1  0.311  0.170  0.069  1.0
  O  O50  1  0.799  0.056  0.690  1.0
  O  O51  1  0.201  0.944  0.310  1.0
[/CIF]
.
The material structure described by V4Cd(SeO6)3 crystallizes in the triclinic P-1 space group. There are four inequivalent V sites. In the first V site, V(1) is bonded in a 5-coordinate geometry to one O(1), one O(15), one O(4), and two equivalent O(2) atoms. In the second V site, V(2) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(12), one O(16), and one O(5) atom. In the third V site, V(3) is bonded in a 6-coordinate geometry to one O(12), one O(17), one O(6), one O(8), and two equivalent O(13) atoms. In the fourth V site, V(4) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(7), and one O(9) atom. Cd(1) is bonded to one O(1), one O(18), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form distorted edge-sharing CdO7 pentagonal bipyramids. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(6), one O(7), and one O(8) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(3), one O(4), and one O(9) atom. In the third Se site, Se(3) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(11), and one O(5) atom. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one V(1), one V(2), and one Cd(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent V(1) and one Cd(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Cd(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one V(1), one Cd(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one V(2), one Cd(1), and one Se(3) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one V(3) and one Se(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one V(4) and one Se(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one V(3) and one Se(1) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one V(4) and one Se(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one V(2) and one Se(3) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one V(4) and one Se(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one V(2), one V(3), and one V(4) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one V(4) and two equivalent V(3) atoms. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one V(4) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one V(1) atom. In the sixteenth O site, O(16) is bonded in a single-bond geometry to one V(2) atom. In the seventeenth O site, O(17) is bonded in a single-bond geometry to one V(3) atom. In the eighteenth O site, O(18) is bonded in a single-bond geometry to one Cd(1) atom. is represented by the CIF file [CIF]
data_V4Cd(SeO6)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.414
_cell_length_b   7.626
_cell_length_c   16.027
_cell_angle_alpha   101.269
_cell_angle_beta   98.904
_cell_angle_gamma   93.629
_symmetry_Int_Tables_number   1
_cell_volume   756.015
_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
  V  V0  1  0.158  0.379  0.519  1.0
  V  V1  1  0.842  0.621  0.481  1.0
  V  V2  1  0.461  0.546  0.710  1.0
  V  V3  1  0.539  0.454  0.290  1.0
  V  V4  1  0.565  0.645  0.939  1.0
  V  V5  1  0.435  0.355  0.061  1.0
  V  V6  1  0.328  0.229  0.835  1.0
  V  V7  1  0.672  0.771  0.165  1.0
  Cd  Cd8  1  0.678  0.207  0.575  1.0
  Cd  Cd9  1  0.322  0.793  0.425  1.0
  Se  Se10  1  0.815  0.277  0.942  1.0
  Se  Se11  1  0.185  0.723  0.058  1.0
  Se  Se12  1  0.207  0.037  0.629  1.0
  Se  Se13  1  0.793  0.963  0.371  1.0
  Se  Se14  1  0.997  0.531  0.772  1.0
  Se  Se15  1  0.003  0.469  0.228  1.0
  O  O16  1  0.414  0.416  0.594  1.0
  O  O17  1  0.586  0.584  0.406  1.0
  O  O18  1  0.854  0.393  0.504  1.0
  O  O19  1  0.146  0.607  0.496  1.0
  O  O20  1  0.611  0.006  0.437  1.0
  O  O21  1  0.389  0.994  0.563  1.0
  O  O22  1  0.052  0.180  0.578  1.0
  O  O23  1  0.948  0.820  0.422  1.0
  O  O24  1  0.749  0.453  0.708  1.0
  O  O25  1  0.251  0.547  0.292  1.0
  O  O26  1  0.703  0.272  0.035  1.0
  O  O27  1  0.297  0.728  0.965  1.0
  O  O28  1  0.622  0.175  0.856  1.0
  O  O29  1  0.378  0.825  0.144  1.0
  O  O30  1  0.808  0.501  0.932  1.0
  O  O31  1  0.192  0.499  0.068  1.0
  O  O32  1  0.367  0.195  0.713  1.0
  O  O33  1  0.633  0.805  0.287  1.0
  O  O34  1  0.145  0.539  0.690  1.0
  O  O35  1  0.855  0.461  0.310  1.0
  O  O36  1  0.054  0.329  0.800  1.0
  O  O37  1  0.946  0.671  0.200  1.0
  O  O38  1  0.456  0.530  0.822  1.0
  O  O39  1  0.544  0.470  0.178  1.0
  O  O40  1  0.624  0.633  0.057  1.0
  O  O41  1  0.376  0.367  0.943  1.0
  O  O42  1  0.211  0.038  0.840  1.0
  O  O43  1  0.789  0.962  0.160  1.0
  O  O44  1  0.210  0.256  0.432  1.0
  O  O45  1  0.790  0.744  0.568  1.0
  O  O46  1  0.517  0.755  0.710  1.0
  O  O47  1  0.483  0.245  0.290  1.0
  O  O48  1  0.689  0.830  0.931  1.0
  O  O49  1  0.311  0.170  0.069  1.0
  O  O50  1  0.799  0.056  0.690  1.0
  O  O51  1  0.201  0.944  0.310  1.0
[/CIF]
.