The material structure described by Be26UTh crystallizes in the cubic F432 space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to one Be(2), nine equivalent Be(1), one U(1), and one Th(1) atom to form distorted BeThUBe10 cuboctahedra that share  a cornercorner with one Be(2)Be12 cuboctahedra, corners with twenty-seven equivalent Be(1)ThUBe10 cuboctahedra, edges with eight equivalent Be(1)ThUBe10 cuboctahedra, faces with two equivalent Be(2)Be12 cuboctahedra, and faces with twenty-three equivalent Be(1)ThUBe10 cuboctahedra. In the second Be site, Be(2) is bonded to twelve equivalent Be(1) atoms to form a mixture of face and corner-sharing BeBe12 cuboctahedra. U(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(1) atoms. Th(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ThUBe26
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.244
_cell_length_b   7.244
_cell_length_c   7.244
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   268.813
_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  0.000  1.0
  U  U1  1  0.500  0.500  0.500  1.0
  Be  Be2  1  0.538  0.313  0.957  1.0
  Be  Be3  1  0.957  0.192  0.538  1.0
  Be  Be4  1  0.313  0.538  0.192  1.0
  Be  Be5  1  0.192  0.957  0.313  1.0
  Be  Be6  1  0.043  0.687  0.462  1.0
  Be  Be7  1  0.462  0.808  0.043  1.0
  Be  Be8  1  0.687  0.043  0.808  1.0
  Be  Be9  1  0.808  0.462  0.687  1.0
  Be  Be10  1  0.957  0.538  0.313  1.0
  Be  Be11  1  0.538  0.957  0.192  1.0
  Be  Be12  1  0.192  0.313  0.538  1.0
  Be  Be13  1  0.313  0.192  0.957  1.0
  Be  Be14  1  0.462  0.043  0.687  1.0
  Be  Be15  1  0.043  0.462  0.808  1.0
  Be  Be16  1  0.808  0.687  0.043  1.0
  Be  Be17  1  0.687  0.808  0.462  1.0
  Be  Be18  1  0.313  0.957  0.538  1.0
  Be  Be19  1  0.192  0.538  0.957  1.0
  Be  Be20  1  0.538  0.192  0.313  1.0
  Be  Be21  1  0.957  0.313  0.192  1.0
  Be  Be22  1  0.687  0.462  0.043  1.0
  Be  Be23  1  0.808  0.043  0.462  1.0
  Be  Be24  1  0.043  0.808  0.687  1.0
  Be  Be25  1  0.462  0.687  0.808  1.0
  Be  Be26  1  0.250  0.250  0.250  1.0
  Be  Be27  1  0.750  0.750  0.750  1.0
[/CIF]
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The material structure described by Be26UTh crystallizes in the cubic F432 space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to one Be(2), nine equivalent Be(1), one U(1), and one Th(1) atom to form distorted BeThUBe10 cuboctahedra that share  a cornercorner with one Be(2)Be12 cuboctahedra, corners with twenty-seven equivalent Be(1)ThUBe10 cuboctahedra, edges with eight equivalent Be(1)ThUBe10 cuboctahedra, faces with two equivalent Be(2)Be12 cuboctahedra, and faces with twenty-three equivalent Be(1)ThUBe10 cuboctahedra. In the second Be site, Be(2) is bonded to twelve equivalent Be(1) atoms to form a mixture of face and corner-sharing BeBe12 cuboctahedra. U(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(1) atoms. Th(1) is bonded in a 24-coordinate geometry to twenty-four equivalent Be(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ThUBe26
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.244
_cell_length_b   7.244
_cell_length_c   7.244
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   268.813
_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  0.000  1.0
  U  U1  1  0.500  0.500  0.500  1.0
  Be  Be2  1  0.538  0.313  0.957  1.0
  Be  Be3  1  0.957  0.192  0.538  1.0
  Be  Be4  1  0.313  0.538  0.192  1.0
  Be  Be5  1  0.192  0.957  0.313  1.0
  Be  Be6  1  0.043  0.687  0.462  1.0
  Be  Be7  1  0.462  0.808  0.043  1.0
  Be  Be8  1  0.687  0.043  0.808  1.0
  Be  Be9  1  0.808  0.462  0.687  1.0
  Be  Be10  1  0.957  0.538  0.313  1.0
  Be  Be11  1  0.538  0.957  0.192  1.0
  Be  Be12  1  0.192  0.313  0.538  1.0
  Be  Be13  1  0.313  0.192  0.957  1.0
  Be  Be14  1  0.462  0.043  0.687  1.0
  Be  Be15  1  0.043  0.462  0.808  1.0
  Be  Be16  1  0.808  0.687  0.043  1.0
  Be  Be17  1  0.687  0.808  0.462  1.0
  Be  Be18  1  0.313  0.957  0.538  1.0
  Be  Be19  1  0.192  0.538  0.957  1.0
  Be  Be20  1  0.538  0.192  0.313  1.0
  Be  Be21  1  0.957  0.313  0.192  1.0
  Be  Be22  1  0.687  0.462  0.043  1.0
  Be  Be23  1  0.808  0.043  0.462  1.0
  Be  Be24  1  0.043  0.808  0.687  1.0
  Be  Be25  1  0.462  0.687  0.808  1.0
  Be  Be26  1  0.250  0.250  0.250  1.0
  Be  Be27  1  0.750  0.750  0.750  1.0
[/CIF]
.