The material described by RbTaCu2Te4 crystallizes in the orthorhombic Pna2_1 space group. Rb(1) is bonded in a 9-coordinate geometry to one Te(2), two equivalent Te(1), two equivalent Te(3), and four equivalent Te(4) atoms. Ta(1) is bonded in a 8-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), one Te(1), one Te(2), one Te(3), and one Te(4) atom. 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), one Te(1), one Te(2), one Te(3), and one Te(4) atom. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to two equivalent Ta(1), one Te(1), one Te(3), and two equivalent Te(2) atoms. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ta(1), one Cu(1), and one Cu(2) atom. In the second Te site, Te(2) is bonded in a distorted pentagonal planar geometry to one Rb(1), one Ta(1), one Cu(1), and two equivalent Cu(2) atoms. 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. In the fourth Te site, Te(4) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one Ta(1), and one Cu(1) atom. is represented by the CIF file [CIF]
data_RbTa(CuTe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.024
_cell_length_b   8.251
_cell_length_c   10.680
_cell_angle_alpha   90.000
_cell_angle_beta   106.382
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   509.276
_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
  Cu  Cu0  1  0.355  0.250  0.710  1.0
  Cu  Cu1  1  0.739  0.500  0.500  1.0
  Cu  Cu2  1  0.145  0.750  0.290  1.0
  Cu  Cu3  1  0.739  0.000  0.500  1.0
  Rb  Rb4  1  0.806  0.250  0.127  1.0
  Rb  Rb5  1  0.179  0.750  0.873  1.0
  Ta  Ta6  1  0.645  0.750  0.290  1.0
  Ta  Ta7  1  0.854  0.250  0.710  1.0
  Te  Te8  1  0.603  0.989  0.713  1.0
  Te  Te9  1  0.008  0.750  0.502  1.0
  Te  Te10  1  0.007  0.250  0.498  1.0
  Te  Te11  1  0.603  0.511  0.713  1.0
  Te  Te12  1  0.789  0.750  0.080  1.0
  Te  Te13  1  0.391  0.489  0.287  1.0
  Te  Te14  1  0.209  0.250  0.920  1.0
  Te  Te15  1  0.391  0.011  0.287  1.0
[/CIF]
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The material described by RbTaCu2Te4 crystallizes in the orthorhombic Pna2_1 space group. Rb(1) is bonded in a 9-coordinate geometry to one Te(2), two equivalent Te(1), two equivalent Te(3), and four equivalent Te(4) atoms. Ta(1) is bonded in a 8-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), one Te(1), one Te(2), one Te(3), and one Te(4) atom. 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), one Te(1), one Te(2), one Te(3), and one Te(4) atom. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to two equivalent Ta(1), one Te(1), one Te(3), and two equivalent Te(2) atoms. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Ta(1), one Cu(1), and one Cu(2) atom. In the second Te site, Te(2) is bonded in a distorted pentagonal planar geometry to one Rb(1), one Ta(1), one Cu(1), and two equivalent Cu(2) atoms. 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. In the fourth Te site, Te(4) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one Ta(1), and one Cu(1) atom. is represented by the CIF file [CIF]
data_RbTa(CuTe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.024
_cell_length_b   8.251
_cell_length_c   10.680
_cell_angle_alpha   90.000
_cell_angle_beta   106.382
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   509.276
_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
  Cu  Cu0  1  0.355  0.250  0.710  1.0
  Cu  Cu1  1  0.739  0.500  0.500  1.0
  Cu  Cu2  1  0.145  0.750  0.290  1.0
  Cu  Cu3  1  0.739  0.000  0.500  1.0
  Rb  Rb4  1  0.806  0.250  0.127  1.0
  Rb  Rb5  1  0.179  0.750  0.873  1.0
  Ta  Ta6  1  0.645  0.750  0.290  1.0
  Ta  Ta7  1  0.854  0.250  0.710  1.0
  Te  Te8  1  0.603  0.989  0.713  1.0
  Te  Te9  1  0.008  0.750  0.502  1.0
  Te  Te10  1  0.007  0.250  0.498  1.0
  Te  Te11  1  0.603  0.511  0.713  1.0
  Te  Te12  1  0.789  0.750  0.080  1.0
  Te  Te13  1  0.391  0.489  0.287  1.0
  Te  Te14  1  0.209  0.250  0.920  1.0
  Te  Te15  1  0.391  0.011  0.287  1.0
[/CIF]
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