The structure described by K2Hg7 crystallizes in the trigonal P-3m1 space group. K(1) is bonded in a 12-coordinate geometry to twelve equivalent Hg(1) atoms. There are two inequivalent Hg sites. In the first Hg site, Hg(2) is bonded in a distorted octahedral geometry to six equivalent Hg(1) atoms. In the second Hg site, Hg(1) is bonded in a 9-coordinate geometry to four equivalent K(1), one Hg(2), and four equivalent Hg(1) atoms. is represented by the CIF file [CIF]
data_K2Hg7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.960
_cell_length_b   6.960
_cell_length_c   6.351
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   266.426
_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  0.333  0.667  0.840  1.0
  K  K1  1  0.667  0.333  0.160  1.0
  Hg  Hg2  1  0.182  0.364  0.332  1.0
  Hg  Hg3  1  0.636  0.818  0.332  1.0
  Hg  Hg4  1  0.182  0.818  0.332  1.0
  Hg  Hg5  1  0.818  0.636  0.668  1.0
  Hg  Hg6  1  0.818  0.182  0.668  1.0
  Hg  Hg7  1  0.364  0.182  0.668  1.0
  Hg  Hg8  1  0.000  0.000  0.000  1.0
[/CIF]
.
The structure described by K2Hg7 crystallizes in the trigonal P-3m1 space group. K(1) is bonded in a 12-coordinate geometry to twelve equivalent Hg(1) atoms. There are two inequivalent Hg sites. In the first Hg site, Hg(2) is bonded in a distorted octahedral geometry to six equivalent Hg(1) atoms. In the second Hg site, Hg(1) is bonded in a 9-coordinate geometry to four equivalent K(1), one Hg(2), and four equivalent Hg(1) atoms. is represented by the CIF file [CIF]
data_K2Hg7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.960
_cell_length_b   6.960
_cell_length_c   6.351
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   266.426
_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  0.333  0.667  0.840  1.0
  K  K1  1  0.667  0.333  0.160  1.0
  Hg  Hg2  1  0.182  0.364  0.332  1.0
  Hg  Hg3  1  0.636  0.818  0.332  1.0
  Hg  Hg4  1  0.182  0.818  0.332  1.0
  Hg  Hg5  1  0.818  0.636  0.668  1.0
  Hg  Hg6  1  0.818  0.182  0.668  1.0
  Hg  Hg7  1  0.364  0.182  0.668  1.0
  Hg  Hg8  1  0.000  0.000  0.000  1.0
[/CIF]
.