The material structure described by K6Cu(SiO4)2 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third K site, K(3) is bonded in a 7-coordinate geometry to one Cu(1), one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent K(3), two equivalent O(3), and two equivalent O(4) atoms. Si(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(3), two equivalent K(1), two equivalent K(2), and one Si(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Si(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one K(1), one K(3), two equivalent K(2), one Cu(1), and one Si(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(3), one Cu(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K6Cu(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.282
_cell_length_b   6.752
_cell_length_c   7.615
_cell_angle_alpha   83.462
_cell_angle_beta   87.657
_cell_angle_gamma   69.853
_symmetry_Int_Tables_number   1
_cell_volume   301.242
_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  0.653  0.827  0.167  1.0
  K  K1  1  0.800  0.304  0.975  1.0
  K  K2  1  0.275  0.814  0.559  1.0
  K  K3  1  0.725  0.186  0.441  1.0
  K  K4  1  0.200  0.696  0.025  1.0
  K  K5  1  0.347  0.173  0.833  1.0
  Cu  Cu6  1  0.000  0.500  0.500  1.0
  Si  Si7  1  0.781  0.760  0.732  1.0
  Si  Si8  1  0.219  0.240  0.268  1.0
  O  O9  1  0.564  0.725  0.842  1.0
  O  O10  1  0.832  0.967  0.785  1.0
  O  O11  1  0.168  0.033  0.215  1.0
  O  O12  1  0.016  0.542  0.753  1.0
  O  O13  1  0.436  0.275  0.158  1.0
  O  O14  1  0.984  0.458  0.247  1.0
  O  O15  1  0.744  0.770  0.512  1.0
  O  O16  1  0.256  0.230  0.488  1.0
[/CIF]
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The material structure described by K6Cu(SiO4)2 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third K site, K(3) is bonded in a 7-coordinate geometry to one Cu(1), one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent K(3), two equivalent O(3), and two equivalent O(4) atoms. Si(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(3), two equivalent K(1), two equivalent K(2), and one Si(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Si(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one K(1), one K(3), two equivalent K(2), one Cu(1), and one Si(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one K(1), two equivalent K(3), one Cu(1), and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K6Cu(SiO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.282
_cell_length_b   6.752
_cell_length_c   7.615
_cell_angle_alpha   83.462
_cell_angle_beta   87.657
_cell_angle_gamma   69.853
_symmetry_Int_Tables_number   1
_cell_volume   301.242
_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  0.653  0.827  0.167  1.0
  K  K1  1  0.800  0.304  0.975  1.0
  K  K2  1  0.275  0.814  0.559  1.0
  K  K3  1  0.725  0.186  0.441  1.0
  K  K4  1  0.200  0.696  0.025  1.0
  K  K5  1  0.347  0.173  0.833  1.0
  Cu  Cu6  1  0.000  0.500  0.500  1.0
  Si  Si7  1  0.781  0.760  0.732  1.0
  Si  Si8  1  0.219  0.240  0.268  1.0
  O  O9  1  0.564  0.725  0.842  1.0
  O  O10  1  0.832  0.967  0.785  1.0
  O  O11  1  0.168  0.033  0.215  1.0
  O  O12  1  0.016  0.542  0.753  1.0
  O  O13  1  0.436  0.275  0.158  1.0
  O  O14  1  0.984  0.458  0.247  1.0
  O  O15  1  0.744  0.770  0.512  1.0
  O  O16  1  0.256  0.230  0.488  1.0
[/CIF]
.