The structure described by KCu(CN)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 11-coordinate geometry to two equivalent C(1), three equivalent C(2), three equivalent N(1), and three equivalent N(2) atoms. Cu(1) is bonded to one C(2), two equivalent C(1), and one N(2) atom to form distorted edge-sharing CuC3N tetrahedra. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 3-coordinate geometry to two equivalent K(1), two equivalent Cu(1), and one N(2) atom. In the second C site, C(2) is bonded in a distorted linear geometry to three equivalent K(1), one Cu(1), and one N(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(2) atom. In the second N site, N(2) is bonded in a distorted bent 150 degrees geometry to three equivalent K(1), one Cu(1), and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KCu(CN)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.750
_cell_length_b   7.434
_cell_length_c   7.673
_cell_angle_alpha   80.130
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   435.586
_cell_formula_units_Z   4
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  0.424  0.819  0.310  1.0
  K  K1  1  0.924  0.681  0.690  1.0
  K  K2  1  0.576  0.181  0.690  1.0
  K  K3  1  0.076  0.319  0.310  1.0
  Cu  Cu4  1  0.881  0.917  0.101  1.0
  Cu  Cu5  1  0.381  0.583  0.899  1.0
  Cu  Cu6  1  0.119  0.083  0.899  1.0
  Cu  Cu7  1  0.619  0.417  0.101  1.0
  C  C8  1  0.084  0.788  0.049  1.0
  C  C9  1  0.584  0.712  0.951  1.0
  C  C10  1  0.416  0.288  0.049  1.0
  C  C11  1  0.696  0.460  0.325  1.0
  C  C12  1  0.196  0.040  0.675  1.0
  C  C13  1  0.304  0.540  0.675  1.0
  C  C14  1  0.804  0.960  0.325  1.0
  C  C15  1  0.916  0.212  0.951  1.0
  N  N16  1  0.250  0.520  0.536  1.0
  N  N17  1  0.250  0.020  0.536  1.0
  N  N18  1  0.750  0.480  0.464  1.0
  N  N19  1  0.187  0.673  0.033  1.0
  N  N20  1  0.313  0.173  0.033  1.0
  N  N21  1  0.813  0.327  0.967  1.0
  N  N22  1  0.750  0.980  0.464  1.0
  N  N23  1  0.687  0.827  0.967  1.0
[/CIF]
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The structure described by KCu(CN)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 11-coordinate geometry to two equivalent C(1), three equivalent C(2), three equivalent N(1), and three equivalent N(2) atoms. Cu(1) is bonded to one C(2), two equivalent C(1), and one N(2) atom to form distorted edge-sharing CuC3N tetrahedra. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 3-coordinate geometry to two equivalent K(1), two equivalent Cu(1), and one N(2) atom. In the second C site, C(2) is bonded in a distorted linear geometry to three equivalent K(1), one Cu(1), and one N(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one C(2) atom. In the second N site, N(2) is bonded in a distorted bent 150 degrees geometry to three equivalent K(1), one Cu(1), and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KCu(CN)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.750
_cell_length_b   7.434
_cell_length_c   7.673
_cell_angle_alpha   80.130
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   435.586
_cell_formula_units_Z   4
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  0.424  0.819  0.310  1.0
  K  K1  1  0.924  0.681  0.690  1.0
  K  K2  1  0.576  0.181  0.690  1.0
  K  K3  1  0.076  0.319  0.310  1.0
  Cu  Cu4  1  0.881  0.917  0.101  1.0
  Cu  Cu5  1  0.381  0.583  0.899  1.0
  Cu  Cu6  1  0.119  0.083  0.899  1.0
  Cu  Cu7  1  0.619  0.417  0.101  1.0
  C  C8  1  0.084  0.788  0.049  1.0
  C  C9  1  0.584  0.712  0.951  1.0
  C  C10  1  0.416  0.288  0.049  1.0
  C  C11  1  0.696  0.460  0.325  1.0
  C  C12  1  0.196  0.040  0.675  1.0
  C  C13  1  0.304  0.540  0.675  1.0
  C  C14  1  0.804  0.960  0.325  1.0
  C  C15  1  0.916  0.212  0.951  1.0
  N  N16  1  0.250  0.520  0.536  1.0
  N  N17  1  0.250  0.020  0.536  1.0
  N  N18  1  0.750  0.480  0.464  1.0
  N  N19  1  0.187  0.673  0.033  1.0
  N  N20  1  0.313  0.173  0.033  1.0
  N  N21  1  0.813  0.327  0.967  1.0
  N  N22  1  0.750  0.980  0.464  1.0
  N  N23  1  0.687  0.827  0.967  1.0
[/CIF]
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