The crystal structure described by U13O34 crystallizes in the orthorhombic Amm2 space group. There are seven inequivalent U sites. In the first U site, U(1) is bonded to one O(14), one O(2), one O(7), one O(8), and two equivalent O(15) atoms to form distorted UO6 octahedra that share corners with two equivalent U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid,  a cornercorner with one U(4)O7 pentagonal bipyramid,  a cornercorner with one U(7)O7 pentagonal bipyramid, and  an edgeedge with one U(4)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 5-50°. In the second U site, U(2) is bonded to one O(1), one O(12), one O(13), one O(2), one O(5), and two equivalent O(17) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra,  a cornercorner with one U(3)O6 octahedra,  a cornercorner with one U(4)O7 pentagonal bipyramid, corners with two equivalent U(2)O7 pentagonal bipyramids,  an edgeedge with one U(3)O6 octahedra,  an edgeedge with one U(4)O7 pentagonal bipyramid, and  an edgeedge with one U(6)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-54°. In the third U site, U(3) is bonded to one O(1), one O(12), one O(18), one O(5), and two equivalent O(10) atoms to form UO6 octahedra that share corners with three equivalent U(3)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid,  a cornercorner with one U(4)O7 pentagonal bipyramid,  a cornercorner with one U(6)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one U(6)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-40°. In the fourth U site, U(4) is bonded to one O(1), one O(13), one O(14), one O(2), one O(7), and two equivalent O(9) atoms to form UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra,  a cornercorner with one U(3)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid, corners with two equivalent U(4)O7 pentagonal bipyramids,  an edgeedge with one U(1)O6 octahedra,  an edgeedge with one U(5)O6 octahedra, and  an edgeedge with one U(2)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 39-61°. In the fifth U site, U(5) is bonded to one O(14), one O(3), one O(4), one O(7), and two equivalent O(6) atoms to form UO6 octahedra that share corners with two equivalent U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra, corners with two equivalent U(7)O7 pentagonal bipyramids,  an edgeedge with one U(4)O7 pentagonal bipyramid, and  an edgeedge with one U(7)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the sixth U site, U(6) is bonded to one O(18), two equivalent O(12), two equivalent O(16), and two equivalent O(5) atoms to form UO7 pentagonal bipyramids that share corners with two equivalent U(3)O6 octahedra, corners with two equivalent U(6)O7 pentagonal bipyramids, edges with two equivalent U(3)O6 octahedra, and edges with two equivalent U(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 34°. In the seventh U site, U(7) is bonded to one O(8), two equivalent O(11), two equivalent O(3), and two equivalent O(4) atoms to form UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra, corners with two equivalent U(7)O7 pentagonal bipyramids,  an edgeedge with one U(5)O6 octahedra, and edges with two equivalent U(7)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 2-43°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one U(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one U(1), one U(2), and one U(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one U(5) and two equivalent U(7) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(5) and two equivalent U(7) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one U(2), one U(3), and one U(6) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent U(5) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one U(4), and one U(5) atom. In the eighth O site, O(8) is bonded in a linear geometry to one U(1) and one U(7) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent U(4) atoms. In the tenth O site, O(10) is bonded in a linear geometry to two equivalent U(3) atoms. In the eleventh O site, O(11) is bonded in a linear geometry to two equivalent U(7) atoms. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one U(6) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one U(2) and one U(4) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one U(1), one U(4), and one U(5) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to two equivalent U(1) atoms. In the sixteenth O site, O(16) is bonded in a linear geometry to two equivalent U(6) atoms. In the seventeenth O site, O(17) is bonded in a linear geometry to two equivalent U(2) atoms. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one U(6) and two equivalent U(3) atoms. is represented by the CIF file [CIF]
data_U13O34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   25.623
_cell_length_b   25.623
_cell_length_c   4.164
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   164.480
_symmetry_Int_Tables_number   1
_cell_volume   731.598
_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  0.836  0.139  0.000  1.0
  U  U1  1  0.139  0.836  0.000  1.0
  U  U2  1  0.932  0.082  0.000  1.0
  U  U3  1  0.438  0.516  0.000  1.0
  U  U4  1  0.361  0.600  0.000  1.0
  U  U5  1  0.082  0.932  0.000  1.0
  U  U6  1  0.296  0.681  0.000  1.0
  U  U7  1  0.942  0.942  0.000  1.0
  U  U8  1  0.600  0.361  0.000  1.0
  U  U9  1  0.516  0.438  0.000  1.0
  U  U10  1  0.222  0.752  0.000  1.0
  U  U11  1  0.681  0.296  0.000  1.0
  U  U12  1  0.752  0.222  0.000  1.0
  O  O13  1  0.299  0.454  0.000  1.0
  O  O14  1  0.254  0.025  0.000  1.0
  O  O15  1  0.074  0.528  0.000  1.0
  O  O16  1  0.900  0.448  0.000  1.0
  O  O17  1  0.837  0.750  0.000  1.0
  O  O18  1  0.678  0.293  0.500  1.0
  O  O19  1  0.139  0.457  0.000  1.0
  O  O20  1  0.174  0.790  0.000  1.0
  O  O21  1  0.357  0.598  0.500  1.0
  O  O22  1  0.436  0.513  0.500  1.0
  O  O23  1  0.752  0.223  0.500  1.0
  O  O24  1  0.528  0.074  0.000  1.0
  O  O25  1  0.135  0.197  0.000  1.0
  O  O26  1  0.661  0.867  0.000  1.0
  O  O27  1  0.511  0.823  0.000  1.0
  O  O28  1  0.790  0.174  0.000  1.0
  O  O29  1  0.750  0.837  0.000  1.0
  O  O30  1  0.129  0.828  0.500  1.0
  O  O31  1  0.926  0.926  0.500  1.0
  O  O32  1  0.454  0.299  0.000  1.0
  O  O33  1  0.293  0.678  0.500  1.0
  O  O34  1  0.448  0.900  0.000  1.0
  O  O35  1  0.197  0.135  0.000  1.0
  O  O36  1  0.457  0.139  0.000  1.0
  O  O37  1  0.091  0.942  0.500  1.0
  O  O38  1  0.598  0.357  0.500  1.0
  O  O39  1  0.823  0.511  0.000  1.0
  O  O40  1  0.583  0.583  0.000  1.0
  O  O41  1  0.223  0.752  0.500  1.0
  O  O42  1  0.828  0.129  0.500  1.0
  O  O43  1  0.025  0.254  0.000  1.0
  O  O44  1  0.513  0.436  0.500  1.0
  O  O45  1  0.942  0.091  0.500  1.0
  O  O46  1  0.867  0.661  0.000  1.0
[/CIF]
.
The crystal structure described by U13O34 crystallizes in the orthorhombic Amm2 space group. There are seven inequivalent U sites. In the first U site, U(1) is bonded to one O(14), one O(2), one O(7), one O(8), and two equivalent O(15) atoms to form distorted UO6 octahedra that share corners with two equivalent U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid,  a cornercorner with one U(4)O7 pentagonal bipyramid,  a cornercorner with one U(7)O7 pentagonal bipyramid, and  an edgeedge with one U(4)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 5-50°. In the second U site, U(2) is bonded to one O(1), one O(12), one O(13), one O(2), one O(5), and two equivalent O(17) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra,  a cornercorner with one U(3)O6 octahedra,  a cornercorner with one U(4)O7 pentagonal bipyramid, corners with two equivalent U(2)O7 pentagonal bipyramids,  an edgeedge with one U(3)O6 octahedra,  an edgeedge with one U(4)O7 pentagonal bipyramid, and  an edgeedge with one U(6)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-54°. In the third U site, U(3) is bonded to one O(1), one O(12), one O(18), one O(5), and two equivalent O(10) atoms to form UO6 octahedra that share corners with three equivalent U(3)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid,  a cornercorner with one U(4)O7 pentagonal bipyramid,  a cornercorner with one U(6)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one U(6)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 2-40°. In the fourth U site, U(4) is bonded to one O(1), one O(13), one O(14), one O(2), one O(7), and two equivalent O(9) atoms to form UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra,  a cornercorner with one U(3)O6 octahedra,  a cornercorner with one U(2)O7 pentagonal bipyramid, corners with two equivalent U(4)O7 pentagonal bipyramids,  an edgeedge with one U(1)O6 octahedra,  an edgeedge with one U(5)O6 octahedra, and  an edgeedge with one U(2)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 39-61°. In the fifth U site, U(5) is bonded to one O(14), one O(3), one O(4), one O(7), and two equivalent O(6) atoms to form UO6 octahedra that share corners with two equivalent U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra, corners with two equivalent U(7)O7 pentagonal bipyramids,  an edgeedge with one U(4)O7 pentagonal bipyramid, and  an edgeedge with one U(7)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the sixth U site, U(6) is bonded to one O(18), two equivalent O(12), two equivalent O(16), and two equivalent O(5) atoms to form UO7 pentagonal bipyramids that share corners with two equivalent U(3)O6 octahedra, corners with two equivalent U(6)O7 pentagonal bipyramids, edges with two equivalent U(3)O6 octahedra, and edges with two equivalent U(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 34°. In the seventh U site, U(7) is bonded to one O(8), two equivalent O(11), two equivalent O(3), and two equivalent O(4) atoms to form UO7 pentagonal bipyramids that share  a cornercorner with one U(1)O6 octahedra, corners with two equivalent U(5)O6 octahedra, corners with two equivalent U(7)O7 pentagonal bipyramids,  an edgeedge with one U(5)O6 octahedra, and edges with two equivalent U(7)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 2-43°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one U(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one U(1), one U(2), and one U(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one U(5) and two equivalent U(7) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one U(5) and two equivalent U(7) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one U(2), one U(3), and one U(6) atom. In the sixth O site, O(6) is bonded in a linear geometry to two equivalent U(5) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one U(4), and one U(5) atom. In the eighth O site, O(8) is bonded in a linear geometry to one U(1) and one U(7) atom. In the ninth O site, O(9) is bonded in a linear geometry to two equivalent U(4) atoms. In the tenth O site, O(10) is bonded in a linear geometry to two equivalent U(3) atoms. In the eleventh O site, O(11) is bonded in a linear geometry to two equivalent U(7) atoms. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one U(2), one U(3), and one U(6) atom. In the thirteenth O site, O(13) is bonded in a distorted linear geometry to one U(2) and one U(4) atom. In the fourteenth O site, O(14) is bonded in a trigonal planar geometry to one U(1), one U(4), and one U(5) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to two equivalent U(1) atoms. In the sixteenth O site, O(16) is bonded in a linear geometry to two equivalent U(6) atoms. In the seventeenth O site, O(17) is bonded in a linear geometry to two equivalent U(2) atoms. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one U(6) and two equivalent U(3) atoms. is represented by the CIF file [CIF]
data_U13O34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   25.623
_cell_length_b   25.623
_cell_length_c   4.164
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   164.480
_symmetry_Int_Tables_number   1
_cell_volume   731.598
_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  0.836  0.139  0.000  1.0
  U  U1  1  0.139  0.836  0.000  1.0
  U  U2  1  0.932  0.082  0.000  1.0
  U  U3  1  0.438  0.516  0.000  1.0
  U  U4  1  0.361  0.600  0.000  1.0
  U  U5  1  0.082  0.932  0.000  1.0
  U  U6  1  0.296  0.681  0.000  1.0
  U  U7  1  0.942  0.942  0.000  1.0
  U  U8  1  0.600  0.361  0.000  1.0
  U  U9  1  0.516  0.438  0.000  1.0
  U  U10  1  0.222  0.752  0.000  1.0
  U  U11  1  0.681  0.296  0.000  1.0
  U  U12  1  0.752  0.222  0.000  1.0
  O  O13  1  0.299  0.454  0.000  1.0
  O  O14  1  0.254  0.025  0.000  1.0
  O  O15  1  0.074  0.528  0.000  1.0
  O  O16  1  0.900  0.448  0.000  1.0
  O  O17  1  0.837  0.750  0.000  1.0
  O  O18  1  0.678  0.293  0.500  1.0
  O  O19  1  0.139  0.457  0.000  1.0
  O  O20  1  0.174  0.790  0.000  1.0
  O  O21  1  0.357  0.598  0.500  1.0
  O  O22  1  0.436  0.513  0.500  1.0
  O  O23  1  0.752  0.223  0.500  1.0
  O  O24  1  0.528  0.074  0.000  1.0
  O  O25  1  0.135  0.197  0.000  1.0
  O  O26  1  0.661  0.867  0.000  1.0
  O  O27  1  0.511  0.823  0.000  1.0
  O  O28  1  0.790  0.174  0.000  1.0
  O  O29  1  0.750  0.837  0.000  1.0
  O  O30  1  0.129  0.828  0.500  1.0
  O  O31  1  0.926  0.926  0.500  1.0
  O  O32  1  0.454  0.299  0.000  1.0
  O  O33  1  0.293  0.678  0.500  1.0
  O  O34  1  0.448  0.900  0.000  1.0
  O  O35  1  0.197  0.135  0.000  1.0
  O  O36  1  0.457  0.139  0.000  1.0
  O  O37  1  0.091  0.942  0.500  1.0
  O  O38  1  0.598  0.357  0.500  1.0
  O  O39  1  0.823  0.511  0.000  1.0
  O  O40  1  0.583  0.583  0.000  1.0
  O  O41  1  0.223  0.752  0.500  1.0
  O  O42  1  0.828  0.129  0.500  1.0
  O  O43  1  0.025  0.254  0.000  1.0
  O  O44  1  0.513  0.436  0.500  1.0
  O  O45  1  0.942  0.091  0.500  1.0
  O  O46  1  0.867  0.661  0.000  1.0
[/CIF]
.