The crystal structure described by UAg2(SeO4)2 crystallizes in the monoclinic P2_1/c space group. U(1) is bonded in a distorted pentagonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), one O(6), and one O(7) atom. In the second Ag site, Ag(2) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(6), and two equivalent O(7) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(3), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(4), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one U(1), one Ag(2), and one Se(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one U(1), one Ag(1), and one Se(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(1), one Ag(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one U(1), one Ag(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one U(1), one Ag(1), one Ag(2), and one Se(1) atom. In the seventh O site, O(7) is bonded to one Ag(1), two equivalent Ag(2), and one Se(2) atom to form distorted edge-sharing OAg3Se tetrahedra. In the eighth O site, O(8) is bonded in a single-bond geometry to one U(1) atom. is represented by the CIF file [CIF]
data_UAg2(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.633
_cell_length_b   5.999
_cell_length_c   21.690
_cell_angle_alpha   80.494
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   851.182
_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
  U  U0  1  0.589  0.278  0.145  1.0
  U  U1  1  0.089  0.722  0.355  1.0
  U  U2  1  0.411  0.722  0.855  1.0
  U  U3  1  0.911  0.278  0.645  1.0
  Ag  Ag4  1  0.596  0.269  0.340  1.0
  Ag  Ag5  1  0.096  0.731  0.160  1.0
  Ag  Ag6  1  0.604  0.761  0.458  1.0
  Ag  Ag7  1  0.104  0.239  0.042  1.0
  Ag  Ag8  1  0.396  0.239  0.542  1.0
  Ag  Ag9  1  0.404  0.731  0.660  1.0
  Ag  Ag10  1  0.896  0.761  0.958  1.0
  Ag  Ag11  1  0.904  0.269  0.840  1.0
  Se  Se12  1  0.561  0.804  0.275  1.0
  Se  Se13  1  0.155  0.738  0.524  1.0
  Se  Se14  1  0.439  0.196  0.725  1.0
  Se  Se15  1  0.655  0.262  0.976  1.0
  Se  Se16  1  0.845  0.262  0.476  1.0
  Se  Se17  1  0.061  0.196  0.225  1.0
  Se  Se18  1  0.939  0.804  0.775  1.0
  Se  Se19  1  0.345  0.738  0.024  1.0
  O  O20  1  0.748  0.333  0.545  1.0
  O  O21  1  0.809  0.540  0.664  1.0
  O  O22  1  0.640  0.086  0.251  1.0
  O  O23  1  0.640  0.533  0.932  1.0
  O  O24  1  0.309  0.460  0.836  1.0
  O  O25  1  0.721  0.662  0.804  1.0
  O  O26  1  0.558  0.151  0.657  1.0
  O  O27  1  0.058  0.849  0.843  1.0
  O  O28  1  0.623  0.167  0.448  1.0
  O  O29  1  0.492  0.012  0.127  1.0
  O  O30  1  0.992  0.988  0.373  1.0
  O  O31  1  0.508  0.988  0.873  1.0
  O  O32  1  0.752  0.333  0.045  1.0
  O  O33  1  0.877  0.167  0.948  1.0
  O  O34  1  0.360  0.467  0.068  1.0
  O  O35  1  0.279  0.338  0.196  1.0
  O  O36  1  0.221  0.338  0.696  1.0
  O  O37  1  0.442  0.849  0.343  1.0
  O  O38  1  0.248  0.667  0.955  1.0
  O  O39  1  0.691  0.540  0.164  1.0
  O  O40  1  0.779  0.662  0.304  1.0
  O  O41  1  0.860  0.533  0.432  1.0
  O  O42  1  0.252  0.667  0.455  1.0
  O  O43  1  0.140  0.914  0.249  1.0
  O  O44  1  0.008  0.012  0.627  1.0
  O  O45  1  0.360  0.914  0.749  1.0
  O  O46  1  0.942  0.151  0.157  1.0
  O  O47  1  0.860  0.086  0.751  1.0
  O  O48  1  0.140  0.467  0.568  1.0
  O  O49  1  0.123  0.833  0.052  1.0
  O  O50  1  0.191  0.460  0.336  1.0
  O  O51  1  0.377  0.833  0.552  1.0
[/CIF]
.
The crystal structure described by UAg2(SeO4)2 crystallizes in the monoclinic P2_1/c space group. U(1) is bonded in a distorted pentagonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 4-coordinate geometry to one O(3), one O(5), one O(6), and one O(7) atom. In the second Ag site, Ag(2) is bonded in a 5-coordinate geometry to one O(1), one O(4), one O(6), and two equivalent O(7) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(3), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(4), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one U(1), one Ag(2), and one Se(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one U(1), one Ag(1), and one Se(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(1), one Ag(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one U(1), one Ag(1), and one Se(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one U(1), one Ag(1), one Ag(2), and one Se(1) atom. In the seventh O site, O(7) is bonded to one Ag(1), two equivalent Ag(2), and one Se(2) atom to form distorted edge-sharing OAg3Se tetrahedra. In the eighth O site, O(8) is bonded in a single-bond geometry to one U(1) atom. is represented by the CIF file [CIF]
data_UAg2(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.633
_cell_length_b   5.999
_cell_length_c   21.690
_cell_angle_alpha   80.494
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   851.182
_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
  U  U0  1  0.589  0.278  0.145  1.0
  U  U1  1  0.089  0.722  0.355  1.0
  U  U2  1  0.411  0.722  0.855  1.0
  U  U3  1  0.911  0.278  0.645  1.0
  Ag  Ag4  1  0.596  0.269  0.340  1.0
  Ag  Ag5  1  0.096  0.731  0.160  1.0
  Ag  Ag6  1  0.604  0.761  0.458  1.0
  Ag  Ag7  1  0.104  0.239  0.042  1.0
  Ag  Ag8  1  0.396  0.239  0.542  1.0
  Ag  Ag9  1  0.404  0.731  0.660  1.0
  Ag  Ag10  1  0.896  0.761  0.958  1.0
  Ag  Ag11  1  0.904  0.269  0.840  1.0
  Se  Se12  1  0.561  0.804  0.275  1.0
  Se  Se13  1  0.155  0.738  0.524  1.0
  Se  Se14  1  0.439  0.196  0.725  1.0
  Se  Se15  1  0.655  0.262  0.976  1.0
  Se  Se16  1  0.845  0.262  0.476  1.0
  Se  Se17  1  0.061  0.196  0.225  1.0
  Se  Se18  1  0.939  0.804  0.775  1.0
  Se  Se19  1  0.345  0.738  0.024  1.0
  O  O20  1  0.748  0.333  0.545  1.0
  O  O21  1  0.809  0.540  0.664  1.0
  O  O22  1  0.640  0.086  0.251  1.0
  O  O23  1  0.640  0.533  0.932  1.0
  O  O24  1  0.309  0.460  0.836  1.0
  O  O25  1  0.721  0.662  0.804  1.0
  O  O26  1  0.558  0.151  0.657  1.0
  O  O27  1  0.058  0.849  0.843  1.0
  O  O28  1  0.623  0.167  0.448  1.0
  O  O29  1  0.492  0.012  0.127  1.0
  O  O30  1  0.992  0.988  0.373  1.0
  O  O31  1  0.508  0.988  0.873  1.0
  O  O32  1  0.752  0.333  0.045  1.0
  O  O33  1  0.877  0.167  0.948  1.0
  O  O34  1  0.360  0.467  0.068  1.0
  O  O35  1  0.279  0.338  0.196  1.0
  O  O36  1  0.221  0.338  0.696  1.0
  O  O37  1  0.442  0.849  0.343  1.0
  O  O38  1  0.248  0.667  0.955  1.0
  O  O39  1  0.691  0.540  0.164  1.0
  O  O40  1  0.779  0.662  0.304  1.0
  O  O41  1  0.860  0.533  0.432  1.0
  O  O42  1  0.252  0.667  0.455  1.0
  O  O43  1  0.140  0.914  0.249  1.0
  O  O44  1  0.008  0.012  0.627  1.0
  O  O45  1  0.360  0.914  0.749  1.0
  O  O46  1  0.942  0.151  0.157  1.0
  O  O47  1  0.860  0.086  0.751  1.0
  O  O48  1  0.140  0.467  0.568  1.0
  O  O49  1  0.123  0.833  0.052  1.0
  O  O50  1  0.191  0.460  0.336  1.0
  O  O51  1  0.377  0.833  0.552  1.0
[/CIF]
.