The material structure described by RbTaCu2Te4 crystallizes in the orthorhombic Ama2 space group. Rb(1) is bonded in a 9-coordinate geometry to one Te(1), four equivalent Te(2), and four equivalent Te(3) atoms. Ta(1) is bonded to two equivalent Cu(1), two equivalent Cu(2), one Te(1), one Te(2), and two equivalent Te(3) atoms to form distorted corner-sharing TaCu4Te4 tetrahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 6-coordinate geometry to two equivalent Ta(1), two equivalent Te(1), and two equivalent Te(3) atoms. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to two equivalent Ta(1), one Te(1), one Te(2), and two equivalent Te(3) atoms. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted pentagonal planar geometry to one Rb(1), one Ta(1), one Cu(2), and two equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one Ta(1), and one Cu(2) atom. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ta(1), one Cu(1), and one Cu(2) atom. is represented by the CIF file [CIF]
data_RbTa(CuTe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.104
_cell_length_b   8.440
_cell_length_c   10.897
_cell_angle_alpha   90.000
_cell_angle_beta   106.266
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   538.882
_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
  Rb  Rb0  1  0.821  0.750  0.127  1.0
  Rb  Rb1  1  0.194  0.250  0.873  1.0
  Ta  Ta2  1  0.355  0.750  0.709  1.0
  Ta  Ta3  1  0.146  0.250  0.291  1.0
  Cu  Cu4  1  0.261  0.500  0.500  1.0
  Cu  Cu5  1  0.261  0.000  0.500  1.0
  Cu  Cu6  1  0.855  0.750  0.710  1.0
  Cu  Cu7  1  0.645  0.250  0.290  1.0
  Te  Te8  1  0.998  0.750  0.501  1.0
  Te  Te9  1  0.997  0.250  0.499  1.0
  Te  Te10  1  0.211  0.750  0.916  1.0
  Te  Te11  1  0.795  0.250  0.084  1.0
  Te  Te12  1  0.605  0.493  0.711  1.0
  Te  Te13  1  0.394  0.507  0.289  1.0
  Te  Te14  1  0.605  0.007  0.711  1.0
  Te  Te15  1  0.394  0.993  0.289  1.0
[/CIF]
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The material structure described by RbTaCu2Te4 crystallizes in the orthorhombic Ama2 space group. Rb(1) is bonded in a 9-coordinate geometry to one Te(1), four equivalent Te(2), and four equivalent Te(3) atoms. Ta(1) is bonded to two equivalent Cu(1), two equivalent Cu(2), one Te(1), one Te(2), and two equivalent Te(3) atoms to form distorted corner-sharing TaCu4Te4 tetrahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 6-coordinate geometry to two equivalent Ta(1), two equivalent Te(1), and two equivalent Te(3) atoms. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to two equivalent Ta(1), one Te(1), one Te(2), and two equivalent Te(3) atoms. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted pentagonal planar geometry to one Rb(1), one Ta(1), one Cu(2), and two equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one Ta(1), and one Cu(2) atom. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ta(1), one Cu(1), and one Cu(2) atom. is represented by the CIF file [CIF]
data_RbTa(CuTe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.104
_cell_length_b   8.440
_cell_length_c   10.897
_cell_angle_alpha   90.000
_cell_angle_beta   106.266
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   538.882
_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
  Rb  Rb0  1  0.821  0.750  0.127  1.0
  Rb  Rb1  1  0.194  0.250  0.873  1.0
  Ta  Ta2  1  0.355  0.750  0.709  1.0
  Ta  Ta3  1  0.146  0.250  0.291  1.0
  Cu  Cu4  1  0.261  0.500  0.500  1.0
  Cu  Cu5  1  0.261  0.000  0.500  1.0
  Cu  Cu6  1  0.855  0.750  0.710  1.0
  Cu  Cu7  1  0.645  0.250  0.290  1.0
  Te  Te8  1  0.998  0.750  0.501  1.0
  Te  Te9  1  0.997  0.250  0.499  1.0
  Te  Te10  1  0.211  0.750  0.916  1.0
  Te  Te11  1  0.795  0.250  0.084  1.0
  Te  Te12  1  0.605  0.493  0.711  1.0
  Te  Te13  1  0.394  0.507  0.289  1.0
  Te  Te14  1  0.605  0.007  0.711  1.0
  Te  Te15  1  0.394  0.993  0.289  1.0
[/CIF]
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