The compound described by K8SrTe6 crystallizes in the tetragonal I-42m space group. K(1) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. Sr(1) is bonded in a distorted tetrahedral geometry to four equivalent Te(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 10-coordinate geometry to eight equivalent K(1) and two equivalent Te(1) atoms. In the second Te site, Te(2) is bonded in a 9-coordinate geometry to eight equivalent K(1) and one Sr(1) atom. is represented by the CIF file [CIF]
data_K8SrTe6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.120
_cell_length_b   10.120
_cell_length_c   10.120
_cell_angle_alpha   95.424
_cell_angle_beta   95.424
_cell_angle_gamma   144.190
_symmetry_Int_Tables_number   1
_cell_volume   576.984
_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
  K  K0  1  0.962  0.152  0.633  1.0
  K  K1  1  0.518  0.328  0.367  1.0
  K  K2  1  0.482  0.848  0.810  1.0
  K  K3  1  0.038  0.672  0.190  1.0
  K  K4  1  0.672  0.038  0.190  1.0
  K  K5  1  0.848  0.482  0.810  1.0
  K  K6  1  0.328  0.518  0.367  1.0
  K  K7  1  0.152  0.962  0.633  1.0
  Sr  Sr8  1  0.500  0.500  0.000  1.0
  Te  Te9  1  0.500  0.000  0.500  1.0
  Te  Te10  1  0.000  0.500  0.500  1.0
  Te  Te11  1  0.886  0.886  0.303  1.0
  Te  Te12  1  0.583  0.583  0.697  1.0
  Te  Te13  1  0.417  0.114  0.000  1.0
  Te  Te14  1  0.114  0.417  0.000  1.0
[/CIF]
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The compound described by K8SrTe6 crystallizes in the tetragonal I-42m space group. K(1) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. Sr(1) is bonded in a distorted tetrahedral geometry to four equivalent Te(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 10-coordinate geometry to eight equivalent K(1) and two equivalent Te(1) atoms. In the second Te site, Te(2) is bonded in a 9-coordinate geometry to eight equivalent K(1) and one Sr(1) atom. is represented by the CIF file [CIF]
data_K8SrTe6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.120
_cell_length_b   10.120
_cell_length_c   10.120
_cell_angle_alpha   95.424
_cell_angle_beta   95.424
_cell_angle_gamma   144.190
_symmetry_Int_Tables_number   1
_cell_volume   576.984
_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
  K  K0  1  0.962  0.152  0.633  1.0
  K  K1  1  0.518  0.328  0.367  1.0
  K  K2  1  0.482  0.848  0.810  1.0
  K  K3  1  0.038  0.672  0.190  1.0
  K  K4  1  0.672  0.038  0.190  1.0
  K  K5  1  0.848  0.482  0.810  1.0
  K  K6  1  0.328  0.518  0.367  1.0
  K  K7  1  0.152  0.962  0.633  1.0
  Sr  Sr8  1  0.500  0.500  0.000  1.0
  Te  Te9  1  0.500  0.000  0.500  1.0
  Te  Te10  1  0.000  0.500  0.500  1.0
  Te  Te11  1  0.886  0.886  0.303  1.0
  Te  Te12  1  0.583  0.583  0.697  1.0
  Te  Te13  1  0.417  0.114  0.000  1.0
  Te  Te14  1  0.114  0.417  0.000  1.0
[/CIF]
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