The material described by U2Te3 is Stibnite structured and crystallizes in the triclinic P1 space group. There are eight inequivalent U sites. In the first U site, U(1) is bonded to one Te(1), one Te(12), one Te(5), two equivalent Te(10), and two equivalent Te(11) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(4), one Te(5), two equivalent Te(11), two equivalent Te(3), and two equivalent Te(9) atoms. In the third U site, U(3) is bonded to one Te(12), one Te(2), one Te(5), two equivalent Te(8), and two equivalent Te(9) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(10), one Te(3), two equivalent Te(2), two equivalent Te(5), and two equivalent Te(6) atoms. In the fifth U site, U(5) is bonded in a 8-coordinate geometry to one Te(12), one Te(6), two equivalent Te(10), two equivalent Te(7), and two equivalent Te(8) atoms. In the sixth U site, U(6) is bonded to one Te(3), one Te(7), one Te(8), two equivalent Te(2), and two equivalent Te(4) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the seventh U site, U(7) is bonded in a 8-coordinate geometry to one Te(7), one Te(9), two equivalent Te(1), two equivalent Te(12), and two equivalent Te(4) atoms. In the eighth U site, U(8) is bonded to one Te(11), one Te(3), one Te(7), two equivalent Te(1), and two equivalent Te(6) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(1), two equivalent U(7), and two equivalent U(8) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the second Te site, Te(2) is bonded to one U(3), two equivalent U(4), and two equivalent U(6) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to one U(4), one U(6), one U(8), and two equivalent U(2) atoms. In the fourth Te site, Te(4) is bonded to one U(2), two equivalent U(6), and two equivalent U(7) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded in a 5-coordinate geometry to one U(1), one U(2), one U(3), and two equivalent U(4) atoms. In the sixth Te site, Te(6) is bonded to one U(5), two equivalent U(4), and two equivalent U(8) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded in a 5-coordinate geometry to one U(6), one U(7), one U(8), and two equivalent U(5) atoms. In the eighth Te site, Te(8) is bonded to one U(6), two equivalent U(3), and two equivalent U(5) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the ninth Te site, Te(9) is bonded to one U(7), two equivalent U(2), and two equivalent U(3) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the tenth Te site, Te(10) is bonded to one U(4), two equivalent U(1), and two equivalent U(5) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the eleventh Te site, Te(11) is bonded to one U(8), two equivalent U(1), and two equivalent U(2) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the twelfth Te site, Te(12) is bonded in a 5-coordinate geometry to one U(1), one U(3), one U(5), and two equivalent U(7) atoms. is represented by the CIF card [CIF]
data_U2Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.400
_cell_length_b   12.039
_cell_length_c   12.226
_cell_angle_alpha   90.109
_cell_angle_beta   90.004
_cell_angle_gamma   90.012
_symmetry_Int_Tables_number   1
_cell_volume   647.603
_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
  U  U0  1  0.251  0.313  0.012  1.0
  U  U1  1  0.252  0.504  0.695  1.0
  U  U2  1  0.253  0.187  0.513  1.0
  U  U3  1  0.749  0.002  0.805  1.0
  U  U4  1  0.249  0.998  0.196  1.0
  U  U5  1  0.747  0.813  0.486  1.0
  U  U6  1  0.750  0.496  0.305  1.0
  U  U7  1  0.752  0.687  0.988  1.0
  Te  Te8  1  0.250  0.555  0.121  1.0
  Te  Te9  1  0.248  0.945  0.620  1.0
  Te  Te10  1  0.752  0.701  0.726  1.0
  Te  Te11  1  0.250  0.625  0.452  1.0
  Te  Te12  1  0.247  0.198  0.775  1.0
  Te  Te13  1  0.251  0.874  0.953  1.0
  Te  Te14  1  0.749  0.801  0.226  1.0
  Te  Te15  1  0.751  0.055  0.379  1.0
  Te  Te16  1  0.752  0.374  0.547  1.0
  Te  Te17  1  0.749  0.126  0.047  1.0
  Te  Te18  1  0.750  0.446  0.879  1.0
  Te  Te19  1  0.246  0.300  0.274  1.0
[/CIF]
.
The material described by U2Te3 is Stibnite structured and crystallizes in the triclinic P1 space group. There are eight inequivalent U sites. In the first U site, U(1) is bonded to one Te(1), one Te(12), one Te(5), two equivalent Te(10), and two equivalent Te(11) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(4), one Te(5), two equivalent Te(11), two equivalent Te(3), and two equivalent Te(9) atoms. In the third U site, U(3) is bonded to one Te(12), one Te(2), one Te(5), two equivalent Te(8), and two equivalent Te(9) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(10), one Te(3), two equivalent Te(2), two equivalent Te(5), and two equivalent Te(6) atoms. In the fifth U site, U(5) is bonded in a 8-coordinate geometry to one Te(12), one Te(6), two equivalent Te(10), two equivalent Te(7), and two equivalent Te(8) atoms. In the sixth U site, U(6) is bonded to one Te(3), one Te(7), one Te(8), two equivalent Te(2), and two equivalent Te(4) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. In the seventh U site, U(7) is bonded in a 8-coordinate geometry to one Te(7), one Te(9), two equivalent Te(1), two equivalent Te(12), and two equivalent Te(4) atoms. In the eighth U site, U(8) is bonded to one Te(11), one Te(3), one Te(7), two equivalent Te(1), and two equivalent Te(6) atoms to form a mixture of distorted edge and corner-sharing UTe7 pentagonal bipyramids. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(1), two equivalent U(7), and two equivalent U(8) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the second Te site, Te(2) is bonded to one U(3), two equivalent U(4), and two equivalent U(6) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to one U(4), one U(6), one U(8), and two equivalent U(2) atoms. In the fourth Te site, Te(4) is bonded to one U(2), two equivalent U(6), and two equivalent U(7) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded in a 5-coordinate geometry to one U(1), one U(2), one U(3), and two equivalent U(4) atoms. In the sixth Te site, Te(6) is bonded to one U(5), two equivalent U(4), and two equivalent U(8) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded in a 5-coordinate geometry to one U(6), one U(7), one U(8), and two equivalent U(5) atoms. In the eighth Te site, Te(8) is bonded to one U(6), two equivalent U(3), and two equivalent U(5) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the ninth Te site, Te(9) is bonded to one U(7), two equivalent U(2), and two equivalent U(3) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the tenth Te site, Te(10) is bonded to one U(4), two equivalent U(1), and two equivalent U(5) atoms to form a mixture of distorted edge and corner-sharing TeU5 trigonal bipyramids. In the eleventh Te site, Te(11) is bonded to one U(8), two equivalent U(1), and two equivalent U(2) atoms to form a mixture of edge and corner-sharing TeU5 square pyramids. In the twelfth Te site, Te(12) is bonded in a 5-coordinate geometry to one U(1), one U(3), one U(5), and two equivalent U(7) atoms. is represented by the CIF card [CIF]
data_U2Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.400
_cell_length_b   12.039
_cell_length_c   12.226
_cell_angle_alpha   90.109
_cell_angle_beta   90.004
_cell_angle_gamma   90.012
_symmetry_Int_Tables_number   1
_cell_volume   647.603
_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
  U  U0  1  0.251  0.313  0.012  1.0
  U  U1  1  0.252  0.504  0.695  1.0
  U  U2  1  0.253  0.187  0.513  1.0
  U  U3  1  0.749  0.002  0.805  1.0
  U  U4  1  0.249  0.998  0.196  1.0
  U  U5  1  0.747  0.813  0.486  1.0
  U  U6  1  0.750  0.496  0.305  1.0
  U  U7  1  0.752  0.687  0.988  1.0
  Te  Te8  1  0.250  0.555  0.121  1.0
  Te  Te9  1  0.248  0.945  0.620  1.0
  Te  Te10  1  0.752  0.701  0.726  1.0
  Te  Te11  1  0.250  0.625  0.452  1.0
  Te  Te12  1  0.247  0.198  0.775  1.0
  Te  Te13  1  0.251  0.874  0.953  1.0
  Te  Te14  1  0.749  0.801  0.226  1.0
  Te  Te15  1  0.751  0.055  0.379  1.0
  Te  Te16  1  0.752  0.374  0.547  1.0
  Te  Te17  1  0.749  0.126  0.047  1.0
  Te  Te18  1  0.750  0.446  0.879  1.0
  Te  Te19  1  0.246  0.300  0.274  1.0
[/CIF]
.