data_Ta2CuTe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.3
_cell_length_b   3.3
_cell_length_c   6.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2CuTe
_chemical_formula_sum   'Ta2 Cu1 Te1'
_cell_volume   71.31
_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
  Ta  Ta1  1  0.65  0.65  0.49  1.0
  Ta  Ta2  1  0.65  0.65  0.04  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Te  Te3  1  0.0  0.0  0.27  1.0

data_Ta2CuTe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.67
_cell_length_b   4.67
_cell_length_c   6.53
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2CuTe
_chemical_formula_sum   'Ta4 Cu2 Te2'
_cell_volume   142.61
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Ta  Ta0  2  0.15  0.5  0.04  1.0
  Ta  Ta1  2  0.15  0.5  0.49  1.0
  Cu  Cu2  2  0.0  0.0  0.0  1.0
  Te  Te3  2  0.0  0.0  0.27  1.0

Ta Ta Cu Te
Ta2CuTe crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ta2CuTe clusters. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a distorted single-bond geometry to one Te(1) atom. The Ta(1)-Te(1) bond length is 2.18 Å. In the second Ta site, Ta(2) is bonded in a 1-coordinate geometry to one Cu(1) atom. The Ta(2)-Cu(1) bond length is 1.65 Å. Cu(1) is bonded in a 2-coordinate geometry to one Ta(2) and one Te(1) atom. The Cu(1)-Te(1) bond length is 1.73 Å. Te(1) is bonded in a 2-coordinate geometry to one Ta(1) and one Cu(1) atom.