The structure described by K2Cu2Te5 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 12-coordinate geometry to two equivalent Cu(1), two equivalent Te(3), four equivalent Te(1), and four equivalent Te(2) atoms. Cu(1) is bonded in a 7-coordinate geometry to two equivalent K(1), one Cu(1), two equivalent Te(1), and two equivalent Te(2) atoms. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and one Te(1) atom. In the second Te site, Te(2) is bonded in a 7-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and one Te(3) atom. In the third Te site, Te(3) is bonded in a distorted hexagonal planar geometry to four equivalent K(1) and two equivalent Te(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Cu2Te5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.954
_cell_length_b   6.954
_cell_length_c   12.185
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   112.241
_symmetry_Int_Tables_number   1
_cell_volume   545.472
_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
  K  K0  1  0.796  0.204  0.000  1.0
  K  K1  1  0.204  0.796  0.000  1.0
  K  K2  1  0.204  0.796  0.500  1.0
  K  K3  1  0.796  0.204  0.500  1.0
  Cu  Cu4  1  0.462  0.684  0.750  1.0
  Cu  Cu5  1  0.316  0.538  0.250  1.0
  Cu  Cu6  1  0.538  0.316  0.250  1.0
  Cu  Cu7  1  0.684  0.462  0.750  1.0
  Te  Te8  1  0.346  0.346  0.434  1.0
  Te  Te9  1  0.064  0.450  0.750  1.0
  Te  Te10  1  0.450  0.064  0.750  1.0
  Te  Te11  1  0.550  0.936  0.250  1.0
  Te  Te12  1  0.025  0.025  0.750  1.0
  Te  Te13  1  0.975  0.975  0.250  1.0
  Te  Te14  1  0.654  0.654  0.934  1.0
  Te  Te15  1  0.346  0.346  0.066  1.0
  Te  Te16  1  0.654  0.654  0.566  1.0
  Te  Te17  1  0.936  0.550  0.250  1.0
[/CIF]
.
The structure described by K2Cu2Te5 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a 12-coordinate geometry to two equivalent Cu(1), two equivalent Te(3), four equivalent Te(1), and four equivalent Te(2) atoms. Cu(1) is bonded in a 7-coordinate geometry to two equivalent K(1), one Cu(1), two equivalent Te(1), and two equivalent Te(2) atoms. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and one Te(1) atom. In the second Te site, Te(2) is bonded in a 7-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and one Te(3) atom. In the third Te site, Te(3) is bonded in a distorted hexagonal planar geometry to four equivalent K(1) and two equivalent Te(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Cu2Te5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.954
_cell_length_b   6.954
_cell_length_c   12.185
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   112.241
_symmetry_Int_Tables_number   1
_cell_volume   545.472
_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
  K  K0  1  0.796  0.204  0.000  1.0
  K  K1  1  0.204  0.796  0.000  1.0
  K  K2  1  0.204  0.796  0.500  1.0
  K  K3  1  0.796  0.204  0.500  1.0
  Cu  Cu4  1  0.462  0.684  0.750  1.0
  Cu  Cu5  1  0.316  0.538  0.250  1.0
  Cu  Cu6  1  0.538  0.316  0.250  1.0
  Cu  Cu7  1  0.684  0.462  0.750  1.0
  Te  Te8  1  0.346  0.346  0.434  1.0
  Te  Te9  1  0.064  0.450  0.750  1.0
  Te  Te10  1  0.450  0.064  0.750  1.0
  Te  Te11  1  0.550  0.936  0.250  1.0
  Te  Te12  1  0.025  0.025  0.750  1.0
  Te  Te13  1  0.975  0.975  0.250  1.0
  Te  Te14  1  0.654  0.654  0.934  1.0
  Te  Te15  1  0.346  0.346  0.066  1.0
  Te  Te16  1  0.654  0.654  0.566  1.0
  Te  Te17  1  0.936  0.550  0.250  1.0
[/CIF]
.