The material structure described by UNd2Te4 crystallizes in the tetragonal I-42d space group. U(1) is bonded to eight equivalent Te(1) atoms to form distorted UTe8 hexagonal bipyramids that share corners with eight equivalent Nd(1)Te8 hexagonal bipyramids, edges with four equivalent U(1)Te8 hexagonal bipyramids, and faces with eight equivalent Nd(1)Te8 hexagonal bipyramids. Nd(1) is bonded to eight equivalent Te(1) atoms to form distorted NdTe8 hexagonal bipyramids that share corners with four equivalent U(1)Te8 hexagonal bipyramids, corners with four equivalent Nd(1)Te8 hexagonal bipyramids, edges with four equivalent Nd(1)Te8 hexagonal bipyramids, faces with four equivalent U(1)Te8 hexagonal bipyramids, and faces with four equivalent Nd(1)Te8 hexagonal bipyramids. Te(1) is bonded to two equivalent U(1) and four equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing TeNd4U2 octahedra. The corner-sharing octahedral tilt angles range from 15-50°. is represented by the CIF card [CIF]
data_Nd2UTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.206
_cell_length_b   8.206
_cell_length_c   8.206
_cell_angle_alpha   109.342
_cell_angle_beta   109.342
_cell_angle_gamma   109.729
_symmetry_Int_Tables_number   1
_cell_volume   425.357
_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
  Nd  Nd0  1  1.000  0.375  0.125  1.0
  Nd  Nd1  1  0.250  0.875  0.875  1.0
  Nd  Nd2  1  0.625  0.750  0.625  1.0
  Nd  Nd3  1  0.125  0.000  0.375  1.0
  U  U4  1  0.750  0.250  0.500  1.0
  U  U5  1  0.500  0.500  0.000  1.0
  Te  Te6  1  0.530  0.130  0.751  1.0
  Te  Te7  1  0.029  0.129  0.749  1.0
  Te  Te8  1  0.870  0.621  0.400  1.0
  Te  Te9  1  0.380  0.280  0.251  1.0
  Te  Te10  1  0.221  0.470  0.600  1.0
  Te  Te11  1  0.871  0.620  0.900  1.0
  Te  Te12  1  0.379  0.779  0.249  1.0
  Te  Te13  1  0.720  0.971  0.100  1.0
[/CIF]
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The material structure described by UNd2Te4 crystallizes in the tetragonal I-42d space group. U(1) is bonded to eight equivalent Te(1) atoms to form distorted UTe8 hexagonal bipyramids that share corners with eight equivalent Nd(1)Te8 hexagonal bipyramids, edges with four equivalent U(1)Te8 hexagonal bipyramids, and faces with eight equivalent Nd(1)Te8 hexagonal bipyramids. Nd(1) is bonded to eight equivalent Te(1) atoms to form distorted NdTe8 hexagonal bipyramids that share corners with four equivalent U(1)Te8 hexagonal bipyramids, corners with four equivalent Nd(1)Te8 hexagonal bipyramids, edges with four equivalent Nd(1)Te8 hexagonal bipyramids, faces with four equivalent U(1)Te8 hexagonal bipyramids, and faces with four equivalent Nd(1)Te8 hexagonal bipyramids. Te(1) is bonded to two equivalent U(1) and four equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing TeNd4U2 octahedra. The corner-sharing octahedral tilt angles range from 15-50°. is represented by the CIF card [CIF]
data_Nd2UTe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.206
_cell_length_b   8.206
_cell_length_c   8.206
_cell_angle_alpha   109.342
_cell_angle_beta   109.342
_cell_angle_gamma   109.729
_symmetry_Int_Tables_number   1
_cell_volume   425.357
_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
  Nd  Nd0  1  1.000  0.375  0.125  1.0
  Nd  Nd1  1  0.250  0.875  0.875  1.0
  Nd  Nd2  1  0.625  0.750  0.625  1.0
  Nd  Nd3  1  0.125  0.000  0.375  1.0
  U  U4  1  0.750  0.250  0.500  1.0
  U  U5  1  0.500  0.500  0.000  1.0
  Te  Te6  1  0.530  0.130  0.751  1.0
  Te  Te7  1  0.029  0.129  0.749  1.0
  Te  Te8  1  0.870  0.621  0.400  1.0
  Te  Te9  1  0.380  0.280  0.251  1.0
  Te  Te10  1  0.221  0.470  0.600  1.0
  Te  Te11  1  0.871  0.620  0.900  1.0
  Te  Te12  1  0.379  0.779  0.249  1.0
  Te  Te13  1  0.720  0.971  0.100  1.0
[/CIF]
.