The material structure described by K3AuSe13 crystallizes in the monoclinic P2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one Se(2), one Se(3), one Se(6), two equivalent Se(1), and two equivalent Se(5) atoms. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent Se(3), four equivalent Se(4), and four equivalent Se(5) atoms. Au(1) is bonded in a square co-planar geometry to two equivalent Se(1) and two equivalent Se(6) atoms. There are seven inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent K(1), one Au(1), and one Se(2) atom to form distorted SeK2AuSe trigonal pyramids that share corners with two equivalent Se(5)K4Se square pyramids, corners with three equivalent Se(1)K2AuSe trigonal pyramids, and  an edgeedge with one Se(5)K4Se square pyramid. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Se(1), and one Se(3) atom. In the third Se site, Se(3) is bonded in a see-saw-like geometry to one K(1), one K(2), one Se(2), and one Se(4) atom. In the fourth Se site, Se(4) is bonded in a 4-coordinate geometry to two equivalent K(2), one Se(3), and one Se(5) atom. In the fifth Se site, Se(5) is bonded to two equivalent K(1), two equivalent K(2), and one Se(4) atom to form distorted SeK4Se square pyramids that share corners with two equivalent Se(5)K4Se square pyramids, corners with two equivalent Se(1)K2AuSe trigonal pyramids, edges with three equivalent Se(5)K4Se square pyramids, and  an edgeedge with one Se(1)K2AuSe trigonal pyramid. In the sixth Se site, Se(6) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Au(1), and one Se(7) atom. In the seventh Se site, Se(7) is bonded in a water-like geometry to two equivalent Se(6) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3AuSe13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.979
_cell_length_b   13.744
_cell_length_c   15.036
_cell_angle_alpha   85.911
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1026.235
_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  0.204  0.162  0.721  1.0
  K  K1  1  0.204  0.338  0.279  1.0
  K  K2  1  0.170  0.250  0.000  1.0
  K  K3  1  0.830  0.750  0.000  1.0
  K  K4  1  0.796  0.838  0.279  1.0
  K  K5  1  0.796  0.662  0.721  1.0
  Au  Au6  1  0.000  0.500  0.500  1.0
  Au  Au7  1  0.000  0.000  0.500  1.0
  Se  Se8  1  0.303  0.549  0.621  1.0
  Se  Se9  1  0.633  0.577  0.266  1.0
  Se  Se10  1  0.367  0.077  0.266  1.0
  Se  Se11  1  0.367  0.423  0.734  1.0
  Se  Se12  1  0.917  0.535  0.147  1.0
  Se  Se13  1  0.917  0.965  0.853  1.0
  Se  Se14  1  0.083  0.465  0.853  1.0
  Se  Se15  1  0.083  0.035  0.147  1.0
  Se  Se16  1  0.677  0.418  0.070  1.0
  Se  Se17  1  0.633  0.923  0.734  1.0
  Se  Se18  1  0.323  0.582  0.930  1.0
  Se  Se19  1  0.323  0.918  0.070  1.0
  Se  Se20  1  0.696  0.266  0.151  1.0
  Se  Se21  1  0.696  0.234  0.849  1.0
  Se  Se22  1  0.304  0.734  0.849  1.0
  Se  Se23  1  0.304  0.766  0.151  1.0
  Se  Se24  1  0.103  0.658  0.413  1.0
  Se  Se25  1  0.103  0.842  0.587  1.0
  Se  Se26  1  0.897  0.342  0.587  1.0
  Se  Se27  1  0.897  0.158  0.413  1.0
  Se  Se28  1  0.614  0.250  0.500  1.0
  Se  Se29  1  0.386  0.750  0.500  1.0
  Se  Se30  1  0.697  0.451  0.379  1.0
  Se  Se31  1  0.697  0.049  0.621  1.0
  Se  Se32  1  0.677  0.082  0.930  1.0
  Se  Se33  1  0.303  0.951  0.379  1.0
[/CIF]
.
The material structure described by K3AuSe13 crystallizes in the monoclinic P2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one Se(2), one Se(3), one Se(6), two equivalent Se(1), and two equivalent Se(5) atoms. In the second K site, K(2) is bonded in a 10-coordinate geometry to two equivalent Se(3), four equivalent Se(4), and four equivalent Se(5) atoms. Au(1) is bonded in a square co-planar geometry to two equivalent Se(1) and two equivalent Se(6) atoms. There are seven inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent K(1), one Au(1), and one Se(2) atom to form distorted SeK2AuSe trigonal pyramids that share corners with two equivalent Se(5)K4Se square pyramids, corners with three equivalent Se(1)K2AuSe trigonal pyramids, and  an edgeedge with one Se(5)K4Se square pyramid. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Se(1), and one Se(3) atom. In the third Se site, Se(3) is bonded in a see-saw-like geometry to one K(1), one K(2), one Se(2), and one Se(4) atom. In the fourth Se site, Se(4) is bonded in a 4-coordinate geometry to two equivalent K(2), one Se(3), and one Se(5) atom. In the fifth Se site, Se(5) is bonded to two equivalent K(1), two equivalent K(2), and one Se(4) atom to form distorted SeK4Se square pyramids that share corners with two equivalent Se(5)K4Se square pyramids, corners with two equivalent Se(1)K2AuSe trigonal pyramids, edges with three equivalent Se(5)K4Se square pyramids, and  an edgeedge with one Se(1)K2AuSe trigonal pyramid. In the sixth Se site, Se(6) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Au(1), and one Se(7) atom. In the seventh Se site, Se(7) is bonded in a water-like geometry to two equivalent Se(6) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3AuSe13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.979
_cell_length_b   13.744
_cell_length_c   15.036
_cell_angle_alpha   85.911
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1026.235
_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  0.204  0.162  0.721  1.0
  K  K1  1  0.204  0.338  0.279  1.0
  K  K2  1  0.170  0.250  0.000  1.0
  K  K3  1  0.830  0.750  0.000  1.0
  K  K4  1  0.796  0.838  0.279  1.0
  K  K5  1  0.796  0.662  0.721  1.0
  Au  Au6  1  0.000  0.500  0.500  1.0
  Au  Au7  1  0.000  0.000  0.500  1.0
  Se  Se8  1  0.303  0.549  0.621  1.0
  Se  Se9  1  0.633  0.577  0.266  1.0
  Se  Se10  1  0.367  0.077  0.266  1.0
  Se  Se11  1  0.367  0.423  0.734  1.0
  Se  Se12  1  0.917  0.535  0.147  1.0
  Se  Se13  1  0.917  0.965  0.853  1.0
  Se  Se14  1  0.083  0.465  0.853  1.0
  Se  Se15  1  0.083  0.035  0.147  1.0
  Se  Se16  1  0.677  0.418  0.070  1.0
  Se  Se17  1  0.633  0.923  0.734  1.0
  Se  Se18  1  0.323  0.582  0.930  1.0
  Se  Se19  1  0.323  0.918  0.070  1.0
  Se  Se20  1  0.696  0.266  0.151  1.0
  Se  Se21  1  0.696  0.234  0.849  1.0
  Se  Se22  1  0.304  0.734  0.849  1.0
  Se  Se23  1  0.304  0.766  0.151  1.0
  Se  Se24  1  0.103  0.658  0.413  1.0
  Se  Se25  1  0.103  0.842  0.587  1.0
  Se  Se26  1  0.897  0.342  0.587  1.0
  Se  Se27  1  0.897  0.158  0.413  1.0
  Se  Se28  1  0.614  0.250  0.500  1.0
  Se  Se29  1  0.386  0.750  0.500  1.0
  Se  Se30  1  0.697  0.451  0.379  1.0
  Se  Se31  1  0.697  0.049  0.621  1.0
  Se  Se32  1  0.677  0.082  0.930  1.0
  Se  Se33  1  0.303  0.951  0.379  1.0
[/CIF]
.