The compound described by UTbTe3 crystallizes in the monoclinic Pm space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(8), two equivalent Te(1), two equivalent Te(12), and two equivalent Te(5) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(4), one Te(7), two equivalent Te(11), two equivalent Te(2), and two equivalent Te(6) atoms. In the third U site, U(3) is bonded in a 8-coordinate geometry to one Te(1), one Te(6), two equivalent Te(10), two equivalent Te(3), and two equivalent Te(7) atoms. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(2), one Te(5), two equivalent Te(4), two equivalent Te(8), and two equivalent Te(9) atoms. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one Te(11), one Te(5), one Te(6), two equivalent Te(3), and two equivalent Te(9) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the second Tb site, Tb(2) is bonded to one Te(12), one Te(5), one Te(6), two equivalent Te(10), and two equivalent Te(4) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the third Tb site, Tb(3) is bonded to one Te(7), one Te(8), one Te(9), two equivalent Te(1), and two equivalent Te(11) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the fourth Tb site, Tb(4) is bonded to one Te(10), one Te(7), one Te(8), two equivalent Te(12), and two equivalent Te(2) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(3), two equivalent U(1), and two equivalent Tb(3) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(11)Tb3U2 square pyramid,  an edgeedge with one Te(12)Tb3U2 trigonal bipyramid, edges with two equivalent Te(1)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(3)Tb2U3 trigonal bipyramids. In the second Te site, Te(2) is bonded to one U(4), two equivalent U(2), and two equivalent Tb(4) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(11)Tb3U2 square pyramid,  an edgeedge with one Te(12)Tb3U2 trigonal bipyramid, edges with two equivalent Te(2)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(4)Tb2U3 trigonal bipyramids. In the third Te site, Te(3) is bonded to one U(1), two equivalent U(3), and two equivalent Tb(1) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(10)Tb3U2 trigonal bipyramid,  an edgeedge with one Te(9)Tb3U2 trigonal bipyramid, edges with two equivalent Te(1)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(3)Tb2U3 trigonal bipyramids. In the fourth Te site, Te(4) is bonded to one U(2), two equivalent U(4), and two equivalent Tb(2) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(10)Tb3U2 trigonal bipyramid,  an edgeedge with one Te(9)Tb3U2 trigonal bipyramid, edges with two equivalent Te(2)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(4)Tb2U3 trigonal bipyramids. In the fifth Te site, Te(5) is bonded in a 5-coordinate geometry to one U(4), two equivalent U(1), one Tb(1), and one Tb(2) atom. In the sixth Te site, Te(6) is bonded in a 5-coordinate geometry to one U(3), two equivalent U(2), one Tb(1), and one Tb(2) atom. In the seventh Te site, Te(7) is bonded in a 5-coordinate geometry to one U(2), two equivalent U(3), one Tb(3), and one Tb(4) atom. In the eighth Te site, Te(8) is bonded in a 5-coordinate geometry to one U(1), two equivalent U(4), one Tb(3), and one Tb(4) atom. In the ninth Te site, Te(9) is bonded to two equivalent U(4), one Tb(3), and two equivalent Tb(1) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids, edges with two equivalent Te(11)Tb3U2 square pyramids,  an edgeedge with one Te(3)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(4)Tb2U3 trigonal bipyramid, and edges with two equivalent Te(9)Tb3U2 trigonal bipyramids. In the tenth Te site, Te(10) is bonded to two equivalent U(3), one Tb(4), and two equivalent Tb(2) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids,  an edgeedge with one Te(3)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(4)Tb2U3 trigonal bipyramid, edges with two equivalent Te(10)Tb3U2 trigonal bipyramids, and edges with two equivalent Te(12)Tb3U2 trigonal bipyramids. In the eleventh Te site, Te(11) is bonded to two equivalent U(2), one Tb(1), and two equivalent Tb(3) atoms to form distorted TeTb3U2 square pyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids, edges with two equivalent Te(11)Tb3U2 square pyramids,  an edgeedge with one Te(1)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(2)Tb2U3 trigonal bipyramid, and edges with two equivalent Te(9)Tb3U2 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to two equivalent U(1), one Tb(2), and two equivalent Tb(4) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids,  an edgeedge with one Te(1)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(2)Tb2U3 trigonal bipyramid, edges with two equivalent Te(10)Tb3U2 trigonal bipyramids, and edges with two equivalent Te(12)Tb3U2 trigonal bipyramids. is represented by the CIF card [CIF]
data_TbUTe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.370
_cell_length_b   11.886
_cell_length_c   12.149
_cell_angle_alpha   89.964
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   631.066
_cell_formula_units_Z   4
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
  Tb  Tb0  1  0.250  0.187  0.486  1.0
  Tb  Tb1  1  0.250  0.312  0.985  1.0
  Tb  Tb2  1  0.750  0.813  0.516  1.0
  Tb  Tb3  1  0.750  0.687  0.015  1.0
  U  U4  1  0.750  0.503  0.696  1.0
  U  U5  1  0.750  0.997  0.195  1.0
  U  U6  1  0.250  0.497  0.304  1.0
  U  U7  1  0.250  0.003  0.802  1.0
  Te  Te8  1  0.250  0.628  0.543  1.0
  Te  Te9  1  0.250  0.872  0.042  1.0
  Te  Te10  1  0.750  0.372  0.458  1.0
  Te  Te11  1  0.750  0.128  0.957  1.0
  Te  Te12  1  0.250  0.301  0.727  1.0
  Te  Te13  1  0.250  0.199  0.227  1.0
  Te  Te14  1  0.750  0.699  0.274  1.0
  Te  Te15  1  0.750  0.802  0.774  1.0
  Te  Te16  1  0.750  0.056  0.616  1.0
  Te  Te17  1  0.750  0.445  0.116  1.0
  Te  Te18  1  0.250  0.945  0.385  1.0
  Te  Te19  1  0.250  0.555  0.884  1.0
[/CIF]
.
The compound described by UTbTe3 crystallizes in the monoclinic Pm space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(8), two equivalent Te(1), two equivalent Te(12), and two equivalent Te(5) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(4), one Te(7), two equivalent Te(11), two equivalent Te(2), and two equivalent Te(6) atoms. In the third U site, U(3) is bonded in a 8-coordinate geometry to one Te(1), one Te(6), two equivalent Te(10), two equivalent Te(3), and two equivalent Te(7) atoms. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(2), one Te(5), two equivalent Te(4), two equivalent Te(8), and two equivalent Te(9) atoms. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one Te(11), one Te(5), one Te(6), two equivalent Te(3), and two equivalent Te(9) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the second Tb site, Tb(2) is bonded to one Te(12), one Te(5), one Te(6), two equivalent Te(10), and two equivalent Te(4) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the third Tb site, Tb(3) is bonded to one Te(7), one Te(8), one Te(9), two equivalent Te(1), and two equivalent Te(11) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. In the fourth Tb site, Tb(4) is bonded to one Te(10), one Te(7), one Te(8), two equivalent Te(12), and two equivalent Te(2) atoms to form a mixture of distorted edge and corner-sharing TbTe7 pentagonal bipyramids. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(3), two equivalent U(1), and two equivalent Tb(3) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(11)Tb3U2 square pyramid,  an edgeedge with one Te(12)Tb3U2 trigonal bipyramid, edges with two equivalent Te(1)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(3)Tb2U3 trigonal bipyramids. In the second Te site, Te(2) is bonded to one U(4), two equivalent U(2), and two equivalent Tb(4) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(11)Tb3U2 square pyramid,  an edgeedge with one Te(12)Tb3U2 trigonal bipyramid, edges with two equivalent Te(2)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(4)Tb2U3 trigonal bipyramids. In the third Te site, Te(3) is bonded to one U(1), two equivalent U(3), and two equivalent Tb(1) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(10)Tb3U2 trigonal bipyramid,  an edgeedge with one Te(9)Tb3U2 trigonal bipyramid, edges with two equivalent Te(1)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(3)Tb2U3 trigonal bipyramids. In the fourth Te site, Te(4) is bonded to one U(2), two equivalent U(4), and two equivalent Tb(2) atoms to form distorted TeTb2U3 trigonal bipyramids that share corners with two equivalent Te(11)Tb3U2 square pyramids, corners with two equivalent Te(10)Tb3U2 trigonal bipyramids, corners with two equivalent Te(12)Tb3U2 trigonal bipyramids, corners with two equivalent Te(9)Tb3U2 trigonal bipyramids,  an edgeedge with one Te(10)Tb3U2 trigonal bipyramid,  an edgeedge with one Te(9)Tb3U2 trigonal bipyramid, edges with two equivalent Te(2)Tb2U3 trigonal bipyramids, and edges with two equivalent Te(4)Tb2U3 trigonal bipyramids. In the fifth Te site, Te(5) is bonded in a 5-coordinate geometry to one U(4), two equivalent U(1), one Tb(1), and one Tb(2) atom. In the sixth Te site, Te(6) is bonded in a 5-coordinate geometry to one U(3), two equivalent U(2), one Tb(1), and one Tb(2) atom. In the seventh Te site, Te(7) is bonded in a 5-coordinate geometry to one U(2), two equivalent U(3), one Tb(3), and one Tb(4) atom. In the eighth Te site, Te(8) is bonded in a 5-coordinate geometry to one U(1), two equivalent U(4), one Tb(3), and one Tb(4) atom. In the ninth Te site, Te(9) is bonded to two equivalent U(4), one Tb(3), and two equivalent Tb(1) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids, edges with two equivalent Te(11)Tb3U2 square pyramids,  an edgeedge with one Te(3)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(4)Tb2U3 trigonal bipyramid, and edges with two equivalent Te(9)Tb3U2 trigonal bipyramids. In the tenth Te site, Te(10) is bonded to two equivalent U(3), one Tb(4), and two equivalent Tb(2) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids,  an edgeedge with one Te(3)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(4)Tb2U3 trigonal bipyramid, edges with two equivalent Te(10)Tb3U2 trigonal bipyramids, and edges with two equivalent Te(12)Tb3U2 trigonal bipyramids. In the eleventh Te site, Te(11) is bonded to two equivalent U(2), one Tb(1), and two equivalent Tb(3) atoms to form distorted TeTb3U2 square pyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids, edges with two equivalent Te(11)Tb3U2 square pyramids,  an edgeedge with one Te(1)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(2)Tb2U3 trigonal bipyramid, and edges with two equivalent Te(9)Tb3U2 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to two equivalent U(1), one Tb(2), and two equivalent Tb(4) atoms to form distorted TeTb3U2 trigonal bipyramids that share corners with two equivalent Te(1)Tb2U3 trigonal bipyramids, corners with two equivalent Te(2)Tb2U3 trigonal bipyramids, corners with two equivalent Te(3)Tb2U3 trigonal bipyramids, corners with two equivalent Te(4)Tb2U3 trigonal bipyramids,  an edgeedge with one Te(1)Tb2U3 trigonal bipyramid,  an edgeedge with one Te(2)Tb2U3 trigonal bipyramid, edges with two equivalent Te(10)Tb3U2 trigonal bipyramids, and edges with two equivalent Te(12)Tb3U2 trigonal bipyramids. is represented by the CIF card [CIF]
data_TbUTe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.370
_cell_length_b   11.886
_cell_length_c   12.149
_cell_angle_alpha   89.964
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   631.066
_cell_formula_units_Z   4
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
  Tb  Tb0  1  0.250  0.187  0.486  1.0
  Tb  Tb1  1  0.250  0.312  0.985  1.0
  Tb  Tb2  1  0.750  0.813  0.516  1.0
  Tb  Tb3  1  0.750  0.687  0.015  1.0
  U  U4  1  0.750  0.503  0.696  1.0
  U  U5  1  0.750  0.997  0.195  1.0
  U  U6  1  0.250  0.497  0.304  1.0
  U  U7  1  0.250  0.003  0.802  1.0
  Te  Te8  1  0.250  0.628  0.543  1.0
  Te  Te9  1  0.250  0.872  0.042  1.0
  Te  Te10  1  0.750  0.372  0.458  1.0
  Te  Te11  1  0.750  0.128  0.957  1.0
  Te  Te12  1  0.250  0.301  0.727  1.0
  Te  Te13  1  0.250  0.199  0.227  1.0
  Te  Te14  1  0.750  0.699  0.274  1.0
  Te  Te15  1  0.750  0.802  0.774  1.0
  Te  Te16  1  0.750  0.056  0.616  1.0
  Te  Te17  1  0.750  0.445  0.116  1.0
  Te  Te18  1  0.250  0.945  0.385  1.0
  Te  Te19  1  0.250  0.555  0.884  1.0
[/CIF]
.