The crystal structure described by U3Tm crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to eight equivalent U(1) and four equivalent Tm(1) atoms to form distorted UTm4U8 cuboctahedra that share corners with four equivalent Tm(1)U12 cuboctahedra, corners with fourteen equivalent U(1)Tm4U8 cuboctahedra, edges with six equivalent Tm(1)U12 cuboctahedra, edges with twelve equivalent U(1)Tm4U8 cuboctahedra, faces with four equivalent Tm(1)U12 cuboctahedra, and faces with sixteen equivalent U(1)Tm4U8 cuboctahedra. Tm(1) is bonded to twelve equivalent U(1) atoms to form TmU12 cuboctahedra that share corners with six equivalent Tm(1)U12 cuboctahedra, corners with twelve equivalent U(1)Tm4U8 cuboctahedra, edges with eighteen equivalent U(1)Tm4U8 cuboctahedra, faces with eight equivalent Tm(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Tm4U8 cuboctahedra. is represented by the CIF file [CIF]
data_TmU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.369
_cell_length_b   6.369
_cell_length_c   5.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   187.810
_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
  Tm  Tm0  1  0.333  0.667  0.750  1.0
  Tm  Tm1  1  0.667  0.333  0.250  1.0
  U  U2  1  0.147  0.295  0.250  1.0
  U  U3  1  0.705  0.853  0.250  1.0
  U  U4  1  0.147  0.853  0.250  1.0
  U  U5  1  0.853  0.705  0.750  1.0
  U  U6  1  0.295  0.147  0.750  1.0
  U  U7  1  0.853  0.147  0.750  1.0
[/CIF]
.
The crystal structure described by U3Tm crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to eight equivalent U(1) and four equivalent Tm(1) atoms to form distorted UTm4U8 cuboctahedra that share corners with four equivalent Tm(1)U12 cuboctahedra, corners with fourteen equivalent U(1)Tm4U8 cuboctahedra, edges with six equivalent Tm(1)U12 cuboctahedra, edges with twelve equivalent U(1)Tm4U8 cuboctahedra, faces with four equivalent Tm(1)U12 cuboctahedra, and faces with sixteen equivalent U(1)Tm4U8 cuboctahedra. Tm(1) is bonded to twelve equivalent U(1) atoms to form TmU12 cuboctahedra that share corners with six equivalent Tm(1)U12 cuboctahedra, corners with twelve equivalent U(1)Tm4U8 cuboctahedra, edges with eighteen equivalent U(1)Tm4U8 cuboctahedra, faces with eight equivalent Tm(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Tm4U8 cuboctahedra. is represented by the CIF file [CIF]
data_TmU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.369
_cell_length_b   6.369
_cell_length_c   5.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   187.810
_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
  Tm  Tm0  1  0.333  0.667  0.750  1.0
  Tm  Tm1  1  0.667  0.333  0.250  1.0
  U  U2  1  0.147  0.295  0.250  1.0
  U  U3  1  0.705  0.853  0.250  1.0
  U  U4  1  0.147  0.853  0.250  1.0
  U  U5  1  0.853  0.705  0.750  1.0
  U  U6  1  0.295  0.147  0.750  1.0
  U  U7  1  0.853  0.147  0.750  1.0
[/CIF]
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