The material structure described by U3(HO5)2 crystallizes in the triclinic P1 space group. There are three inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing UO6 octahedra. In the second U site, U(2) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O6 octahedra,  an edgeedge with one U(1)O6 octahedra, and edges with two equivalent U(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 3-35°. In the third U site, U(3) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O6 octahedra,  an edgeedge with one U(1)O6 octahedra, and edges with two equivalent U(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 3-36°. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one U(1) and one U(2) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one U(1) and one U(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one U(2), one U(3), and one H(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one H(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one U(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one U(3) atom. In the seventh O site, O(7) is bonded in a linear geometry to one U(1) and one U(3) atom. In the eighth O site, O(8) is bonded in a linear geometry to one U(1) and one U(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one U(2) and one H(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one U(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_U3(HO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.899
_cell_length_c   7.387
_cell_angle_alpha   73.613
_cell_angle_beta   72.112
_cell_angle_gamma   73.193
_symmetry_Int_Tables_number   1
_cell_volume   216.076
_cell_formula_units_Z   1
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  0.996  0.003  0.997  1.0
  U  U1  1  0.540  0.445  0.750  1.0
  U  U2  1  0.447  0.563  0.256  1.0
  H  H3  1  0.861  0.197  0.445  1.0
  H  H4  1  0.990  0.656  0.611  1.0
  O  O5  1  0.897  0.081  0.761  1.0
  O  O6  1  0.090  0.926  0.236  1.0
  O  O7  1  0.688  0.301  0.467  1.0
  O  O8  1  0.322  0.649  0.559  1.0
  O  O9  1  0.300  0.688  0.957  1.0
  O  O10  1  0.690  0.317  0.036  1.0
  O  O11  1  0.688  0.767  0.145  1.0
  O  O12  1  0.297  0.231  0.863  1.0
  O  O13  1  0.802  0.648  0.648  1.0
  O  O14  1  0.214  0.374  0.346  1.0
[/CIF]
.
The material structure described by U3(HO5)2 crystallizes in the triclinic P1 space group. There are three inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form a mixture of corner and edge-sharing UO6 octahedra. In the second U site, U(2) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O6 octahedra,  an edgeedge with one U(1)O6 octahedra, and edges with two equivalent U(3)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 3-35°. In the third U site, U(3) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O6 octahedra,  an edgeedge with one U(1)O6 octahedra, and edges with two equivalent U(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 3-36°. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one U(1) and one U(2) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one U(1) and one U(3) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one U(2), one U(3), and one H(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one H(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one U(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one U(3) atom. In the seventh O site, O(7) is bonded in a linear geometry to one U(1) and one U(3) atom. In the eighth O site, O(8) is bonded in a linear geometry to one U(1) and one U(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one U(2) and one H(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one U(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_U3(HO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.899
_cell_length_c   7.387
_cell_angle_alpha   73.613
_cell_angle_beta   72.112
_cell_angle_gamma   73.193
_symmetry_Int_Tables_number   1
_cell_volume   216.076
_cell_formula_units_Z   1
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  0.996  0.003  0.997  1.0
  U  U1  1  0.540  0.445  0.750  1.0
  U  U2  1  0.447  0.563  0.256  1.0
  H  H3  1  0.861  0.197  0.445  1.0
  H  H4  1  0.990  0.656  0.611  1.0
  O  O5  1  0.897  0.081  0.761  1.0
  O  O6  1  0.090  0.926  0.236  1.0
  O  O7  1  0.688  0.301  0.467  1.0
  O  O8  1  0.322  0.649  0.559  1.0
  O  O9  1  0.300  0.688  0.957  1.0
  O  O10  1  0.690  0.317  0.036  1.0
  O  O11  1  0.688  0.767  0.145  1.0
  O  O12  1  0.297  0.231  0.863  1.0
  O  O13  1  0.802  0.648  0.648  1.0
  O  O14  1  0.214  0.374  0.346  1.0
[/CIF]
.