The material described by U8ThO18 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(9), and two equivalent O(1) atoms. In the second U site, U(2) is bonded in a body-centered cubic geometry to one O(2), one O(6), one O(8), one O(9), two equivalent O(3), and two equivalent O(5) atoms. In the third U site, U(3) is bonded in a body-centered cubic geometry to one O(1), one O(6), one O(7), one O(9), two equivalent O(2), and two equivalent O(4) atoms. In the fourth U site, U(4) is bonded in a body-centered cubic geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(9), and two equivalent O(8) atoms. Th(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one U(3), one U(4), and two equivalent U(1) atoms to form OU4 tetrahedra that share  a cornercorner with one O(5)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(2)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(4)U4 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the second O site, O(2) is bonded to one U(1), one U(2), and two equivalent U(3) atoms to form OU4 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(7)ThU3 tetrahedra, corners with three equivalent O(4)U4 tetrahedra, corners with three equivalent O(5)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the third O site, O(3) is bonded to one U(1), two equivalent U(2), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(4)U4 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with three equivalent O(5)U4 tetrahedra, corners with three equivalent O(9)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. In the fourth O site, O(4) is bonded to one U(1), one U(4), and two equivalent U(3) atoms to form OU4 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(6)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(1)U4 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the fifth O site, O(5) is bonded to one U(1), one U(4), and two equivalent U(2) atoms to form OU4 tetrahedra that share  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(1)U4 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(3)ThU3 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the sixth O site, O(6) is bonded to one U(2), one U(3), one U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(4)U4 tetrahedra,  a cornercorner with one O(5)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with three equivalent O(8)ThU3 tetrahedra, corners with three equivalent O(9)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. In the seventh O site, O(7) is bonded to one U(1), one U(3), one U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(9)U4 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the eighth O site, O(8) is bonded to one U(2), two equivalent U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(8)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(9)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(6)ThU3 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the ninth O site, O(9) is bonded to one U(1), one U(2), one U(3), and one U(4) atom to form OU4 tetrahedra that share  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(2)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(3)ThU3 tetrahedra, corners with three equivalent O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. is represented by the CIF card [CIF]
data_ThU8O18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.670
_cell_length_b   6.732
_cell_length_c   8.654
_cell_angle_alpha   82.542
_cell_angle_beta   75.185
_cell_angle_gamma   80.684
_symmetry_Int_Tables_number   1
_cell_volume   369.145
_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
  Th  Th0  1  0.000  0.000  0.500  1.0
  U  U1  1  0.333  0.668  0.165  1.0
  U  U2  1  0.775  0.558  0.387  1.0
  U  U3  1  0.112  0.226  0.052  1.0
  U  U4  1  0.667  0.332  0.835  1.0
  U  U5  1  0.225  0.442  0.613  1.0
  U  U6  1  0.555  0.114  0.275  1.0
  U  U7  1  0.888  0.774  0.948  1.0
  U  U8  1  0.445  0.886  0.725  1.0
  O  O9  1  0.588  0.664  0.926  1.0
  O  O10  1  0.019  0.557  0.136  1.0
  O  O11  1  0.412  0.336  0.074  1.0
  O  O12  1  0.081  0.665  0.407  1.0
  O  O13  1  0.804  0.118  0.032  1.0
  O  O14  1  0.476  0.457  0.353  1.0
  O  O15  1  0.851  0.227  0.312  1.0
  O  O16  1  0.524  0.543  0.647  1.0
  O  O17  1  0.248  0.009  0.243  1.0
  O  O18  1  0.919  0.335  0.593  1.0
  O  O19  1  0.196  0.882  0.968  1.0
  O  O20  1  0.752  0.991  0.757  1.0
  O  O21  1  0.686  0.879  0.480  1.0
  O  O22  1  0.362  0.211  0.802  1.0
  O  O23  1  0.638  0.789  0.198  1.0
  O  O24  1  0.314  0.121  0.520  1.0
  O  O25  1  0.981  0.443  0.864  1.0
  O  O26  1  0.149  0.773  0.688  1.0
[/CIF]
.
The material described by U8ThO18 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(9), and two equivalent O(1) atoms. In the second U site, U(2) is bonded in a body-centered cubic geometry to one O(2), one O(6), one O(8), one O(9), two equivalent O(3), and two equivalent O(5) atoms. In the third U site, U(3) is bonded in a body-centered cubic geometry to one O(1), one O(6), one O(7), one O(9), two equivalent O(2), and two equivalent O(4) atoms. In the fourth U site, U(4) is bonded in a body-centered cubic geometry to one O(1), one O(4), one O(5), one O(6), one O(7), one O(9), and two equivalent O(8) atoms. Th(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded to one U(3), one U(4), and two equivalent U(1) atoms to form OU4 tetrahedra that share  a cornercorner with one O(5)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(2)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(4)U4 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the second O site, O(2) is bonded to one U(1), one U(2), and two equivalent U(3) atoms to form OU4 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(7)ThU3 tetrahedra, corners with three equivalent O(4)U4 tetrahedra, corners with three equivalent O(5)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the third O site, O(3) is bonded to one U(1), two equivalent U(2), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(4)U4 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with three equivalent O(5)U4 tetrahedra, corners with three equivalent O(9)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. In the fourth O site, O(4) is bonded to one U(1), one U(4), and two equivalent U(3) atoms to form OU4 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(6)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(1)U4 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the fifth O site, O(5) is bonded to one U(1), one U(4), and two equivalent U(2) atoms to form OU4 tetrahedra that share  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(1)U4 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(9)U4 tetrahedra, corners with three equivalent O(3)ThU3 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the sixth O site, O(6) is bonded to one U(2), one U(3), one U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(6)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(4)U4 tetrahedra,  a cornercorner with one O(5)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with three equivalent O(8)ThU3 tetrahedra, corners with three equivalent O(9)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. In the seventh O site, O(7) is bonded to one U(1), one U(3), one U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(3)ThU3 tetrahedra,  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(9)U4 tetrahedra, corners with two equivalent O(6)ThU3 tetrahedra, corners with two equivalent O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(2)U4 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the eighth O site, O(8) is bonded to one U(2), two equivalent U(4), and one Th(1) atom to form OThU3 tetrahedra that share  a cornercorner with one O(8)ThU3 tetrahedra,  a cornercorner with one O(2)U4 tetrahedra,  a cornercorner with one O(9)U4 tetrahedra, corners with two equivalent O(3)ThU3 tetrahedra, corners with two equivalent O(7)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(6)ThU3 tetrahedra,  an edgeedge with one O(3)ThU3 tetrahedra,  an edgeedge with one O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(5)U4 tetrahedra, and  an edgeedge with one O(9)U4 tetrahedra. In the ninth O site, O(9) is bonded to one U(1), one U(2), one U(3), and one U(4) atom to form OU4 tetrahedra that share  a cornercorner with one O(7)ThU3 tetrahedra,  a cornercorner with one O(8)ThU3 tetrahedra, corners with two equivalent O(1)U4 tetrahedra, corners with two equivalent O(2)U4 tetrahedra, corners with two equivalent O(4)U4 tetrahedra, corners with two equivalent O(5)U4 tetrahedra, corners with three equivalent O(3)ThU3 tetrahedra, corners with three equivalent O(6)ThU3 tetrahedra,  an edgeedge with one O(7)ThU3 tetrahedra,  an edgeedge with one O(8)ThU3 tetrahedra,  an edgeedge with one O(1)U4 tetrahedra,  an edgeedge with one O(2)U4 tetrahedra,  an edgeedge with one O(4)U4 tetrahedra, and  an edgeedge with one O(5)U4 tetrahedra. is represented by the CIF card [CIF]
data_ThU8O18
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.670
_cell_length_b   6.732
_cell_length_c   8.654
_cell_angle_alpha   82.542
_cell_angle_beta   75.185
_cell_angle_gamma   80.684
_symmetry_Int_Tables_number   1
_cell_volume   369.145
_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
  Th  Th0  1  0.000  0.000  0.500  1.0
  U  U1  1  0.333  0.668  0.165  1.0
  U  U2  1  0.775  0.558  0.387  1.0
  U  U3  1  0.112  0.226  0.052  1.0
  U  U4  1  0.667  0.332  0.835  1.0
  U  U5  1  0.225  0.442  0.613  1.0
  U  U6  1  0.555  0.114  0.275  1.0
  U  U7  1  0.888  0.774  0.948  1.0
  U  U8  1  0.445  0.886  0.725  1.0
  O  O9  1  0.588  0.664  0.926  1.0
  O  O10  1  0.019  0.557  0.136  1.0
  O  O11  1  0.412  0.336  0.074  1.0
  O  O12  1  0.081  0.665  0.407  1.0
  O  O13  1  0.804  0.118  0.032  1.0
  O  O14  1  0.476  0.457  0.353  1.0
  O  O15  1  0.851  0.227  0.312  1.0
  O  O16  1  0.524  0.543  0.647  1.0
  O  O17  1  0.248  0.009  0.243  1.0
  O  O18  1  0.919  0.335  0.593  1.0
  O  O19  1  0.196  0.882  0.968  1.0
  O  O20  1  0.752  0.991  0.757  1.0
  O  O21  1  0.686  0.879  0.480  1.0
  O  O22  1  0.362  0.211  0.802  1.0
  O  O23  1  0.638  0.789  0.198  1.0
  O  O24  1  0.314  0.121  0.520  1.0
  O  O25  1  0.981  0.443  0.864  1.0
  O  O26  1  0.149  0.773  0.688  1.0
[/CIF]
.