The crystal structure described by Li2U3(SeO10)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(9), and two equivalent O(8) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 2-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. In the second U site, U(2) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and two equivalent O(1) atoms to form distorted edge-sharing UO7 pentagonal bipyramids. Se(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(6), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one U(2), and one Se(1) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one Se(1) atom. In the third O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Li(1) and one O(8) atom. In the fourth O site, O(1) is bonded in a trigonal planar geometry to one U(1) and two equivalent U(2) atoms. In the fifth O site, O(9) is bonded in a bent 120 degrees geometry to one Li(1) and one O(10) atom. In the sixth O site, O(2) is bonded in a linear geometry to one Li(1) and one U(2) atom. In the seventh O site, O(10) is bonded in a bent 120 degrees geometry to one Li(1) and one O(9) atom. In the eighth O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the ninth O site, O(4) is bonded in a linear geometry to one Li(1) and one U(2) atom. In the tenth O site, O(5) is bonded in a bent 120 degrees geometry to one U(2) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2U3(SeO10)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.193
_cell_length_b   7.476
_cell_length_c   17.576
_cell_angle_alpha   84.888
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   941.332
_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
  Li  Li0  1  0.497  0.463  0.133  1.0
  Li  Li1  1  0.997  0.537  0.367  1.0
  Li  Li2  1  0.503  0.537  0.867  1.0
  Li  Li3  1  0.003  0.463  0.633  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  U  U5  1  0.500  0.000  0.500  1.0
  U  U6  1  0.497  0.968  0.106  1.0
  U  U7  1  0.997  0.032  0.394  1.0
  U  U8  1  0.503  0.032  0.894  1.0
  U  U9  1  0.003  0.968  0.606  1.0
  Se  Se10  1  0.007  0.906  0.199  1.0
  Se  Se11  1  0.507  0.094  0.301  1.0
  Se  Se12  1  0.993  0.094  0.801  1.0
  Se  Se13  1  0.493  0.906  0.699  1.0
  O  O14  1  0.325  0.014  0.999  1.0
  O  O15  1  0.825  0.986  0.501  1.0
  O  O16  1  0.675  0.986  0.001  1.0
  O  O17  1  0.175  0.014  0.499  1.0
  O  O18  1  0.467  0.718  0.114  1.0
  O  O19  1  0.967  0.282  0.386  1.0
  O  O20  1  0.533  0.282  0.886  1.0
  O  O21  1  0.033  0.718  0.614  1.0
  O  O22  1  0.020  0.760  0.998  1.0
  O  O23  1  0.520  0.240  0.502  1.0
  O  O24  1  0.980  0.240  0.002  1.0
  O  O25  1  0.480  0.760  0.498  1.0
  O  O26  1  0.521  0.212  0.121  1.0
  O  O27  1  0.021  0.788  0.379  1.0
  O  O28  1  0.479  0.788  0.879  1.0
  O  O29  1  0.979  0.212  0.621  1.0
  O  O30  1  0.973  0.075  0.258  1.0
  O  O31  1  0.473  0.925  0.242  1.0
  O  O32  1  0.027  0.925  0.742  1.0
  O  O33  1  0.527  0.075  0.758  1.0
  O  O34  1  0.163  0.998  0.131  1.0
  O  O35  1  0.663  0.002  0.369  1.0
  O  O36  1  0.837  0.002  0.869  1.0
  O  O37  1  0.337  0.998  0.631  1.0
  O  O38  1  0.821  0.919  0.136  1.0
  O  O39  1  0.321  0.081  0.364  1.0
  O  O40  1  0.179  0.081  0.864  1.0
  O  O41  1  0.679  0.919  0.636  1.0
  O  O42  1  0.415  0.494  0.995  1.0
  O  O43  1  0.915  0.506  0.505  1.0
  O  O44  1  0.585  0.506  0.005  1.0
  O  O45  1  0.085  0.494  0.495  1.0
  O  O46  1  0.831  0.538  0.255  1.0
  O  O47  1  0.331  0.462  0.245  1.0
  O  O48  1  0.169  0.462  0.745  1.0
  O  O49  1  0.669  0.538  0.755  1.0
  O  O50  1  0.677  0.470  0.247  1.0
  O  O51  1  0.177  0.530  0.253  1.0
  O  O52  1  0.323  0.530  0.753  1.0
  O  O53  1  0.823  0.470  0.747  1.0
[/CIF]
.
The crystal structure described by Li2U3(SeO10)2 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(4), one O(9), and two equivalent O(8) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 2-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. In the second U site, U(2) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and two equivalent O(1) atoms to form distorted edge-sharing UO7 pentagonal bipyramids. Se(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(6), and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one U(2), and one Se(1) atom. In the second O site, O(7) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one Se(1) atom. In the third O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Li(1) and one O(8) atom. In the fourth O site, O(1) is bonded in a trigonal planar geometry to one U(1) and two equivalent U(2) atoms. In the fifth O site, O(9) is bonded in a bent 120 degrees geometry to one Li(1) and one O(10) atom. In the sixth O site, O(2) is bonded in a linear geometry to one Li(1) and one U(2) atom. In the seventh O site, O(10) is bonded in a bent 120 degrees geometry to one Li(1) and one O(9) atom. In the eighth O site, O(3) is bonded in a single-bond geometry to one U(1) atom. In the ninth O site, O(4) is bonded in a linear geometry to one Li(1) and one U(2) atom. In the tenth O site, O(5) is bonded in a bent 120 degrees geometry to one U(2) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Li2U3(SeO10)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.193
_cell_length_b   7.476
_cell_length_c   17.576
_cell_angle_alpha   84.888
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   941.332
_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
  Li  Li0  1  0.497  0.463  0.133  1.0
  Li  Li1  1  0.997  0.537  0.367  1.0
  Li  Li2  1  0.503  0.537  0.867  1.0
  Li  Li3  1  0.003  0.463  0.633  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  U  U5  1  0.500  0.000  0.500  1.0
  U  U6  1  0.497  0.968  0.106  1.0
  U  U7  1  0.997  0.032  0.394  1.0
  U  U8  1  0.503  0.032  0.894  1.0
  U  U9  1  0.003  0.968  0.606  1.0
  Se  Se10  1  0.007  0.906  0.199  1.0
  Se  Se11  1  0.507  0.094  0.301  1.0
  Se  Se12  1  0.993  0.094  0.801  1.0
  Se  Se13  1  0.493  0.906  0.699  1.0
  O  O14  1  0.325  0.014  0.999  1.0
  O  O15  1  0.825  0.986  0.501  1.0
  O  O16  1  0.675  0.986  0.001  1.0
  O  O17  1  0.175  0.014  0.499  1.0
  O  O18  1  0.467  0.718  0.114  1.0
  O  O19  1  0.967  0.282  0.386  1.0
  O  O20  1  0.533  0.282  0.886  1.0
  O  O21  1  0.033  0.718  0.614  1.0
  O  O22  1  0.020  0.760  0.998  1.0
  O  O23  1  0.520  0.240  0.502  1.0
  O  O24  1  0.980  0.240  0.002  1.0
  O  O25  1  0.480  0.760  0.498  1.0
  O  O26  1  0.521  0.212  0.121  1.0
  O  O27  1  0.021  0.788  0.379  1.0
  O  O28  1  0.479  0.788  0.879  1.0
  O  O29  1  0.979  0.212  0.621  1.0
  O  O30  1  0.973  0.075  0.258  1.0
  O  O31  1  0.473  0.925  0.242  1.0
  O  O32  1  0.027  0.925  0.742  1.0
  O  O33  1  0.527  0.075  0.758  1.0
  O  O34  1  0.163  0.998  0.131  1.0
  O  O35  1  0.663  0.002  0.369  1.0
  O  O36  1  0.837  0.002  0.869  1.0
  O  O37  1  0.337  0.998  0.631  1.0
  O  O38  1  0.821  0.919  0.136  1.0
  O  O39  1  0.321  0.081  0.364  1.0
  O  O40  1  0.179  0.081  0.864  1.0
  O  O41  1  0.679  0.919  0.636  1.0
  O  O42  1  0.415  0.494  0.995  1.0
  O  O43  1  0.915  0.506  0.505  1.0
  O  O44  1  0.585  0.506  0.005  1.0
  O  O45  1  0.085  0.494  0.495  1.0
  O  O46  1  0.831  0.538  0.255  1.0
  O  O47  1  0.331  0.462  0.245  1.0
  O  O48  1  0.169  0.462  0.745  1.0
  O  O49  1  0.669  0.538  0.755  1.0
  O  O50  1  0.677  0.470  0.247  1.0
  O  O51  1  0.177  0.530  0.253  1.0
  O  O52  1  0.323  0.530  0.753  1.0
  O  O53  1  0.823  0.470  0.747  1.0
[/CIF]
.