The compound described by K2Ni(CN)4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 6-coordinate geometry to three equivalent N(1) and three equivalent N(2) atoms. Ni(1) is bonded in a square co-planar geometry to two equivalent C(1) and two equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Ni(1) and one N(2) atom. In the second C site, C(2) is bonded in a linear geometry to one Ni(1) and one N(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to three equivalent K(1) and one C(2) atom. In the second N site, N(2) is bonded in a 4-coordinate geometry to three equivalent K(1) and one C(1) atom. is represented by the CIF card [CIF]
data_K2Ni(CN)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.681
_cell_length_b   4.395
_cell_length_c   13.385
_cell_angle_alpha   89.177
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   451.817
_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  0.042  0.715  0.655  1.0
  K  K1  1  0.542  0.285  0.845  1.0
  K  K2  1  0.458  0.715  0.155  1.0
  K  K3  1  0.958  0.285  0.345  1.0
  Ni  Ni4  1  0.000  0.000  0.000  1.0
  Ni  Ni5  1  0.500  0.000  0.500  1.0
  C  C6  1  0.882  0.850  0.892  1.0
  C  C7  1  0.118  0.150  0.108  1.0
  C  C8  1  0.618  0.850  0.392  1.0
  C  C9  1  0.382  0.150  0.608  1.0
  C  C10  1  0.292  0.855  0.451  1.0
  C  C11  1  0.792  0.145  0.049  1.0
  C  C12  1  0.208  0.855  0.951  1.0
  C  C13  1  0.708  0.145  0.549  1.0
  N  N14  1  0.658  0.235  0.078  1.0
  N  N15  1  0.158  0.765  0.422  1.0
  N  N16  1  0.303  0.241  0.677  1.0
  N  N17  1  0.197  0.241  0.177  1.0
  N  N18  1  0.803  0.759  0.823  1.0
  N  N19  1  0.697  0.759  0.323  1.0
  N  N20  1  0.342  0.765  0.922  1.0
  N  N21  1  0.842  0.235  0.578  1.0
[/CIF]
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The compound described by K2Ni(CN)4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 6-coordinate geometry to three equivalent N(1) and three equivalent N(2) atoms. Ni(1) is bonded in a square co-planar geometry to two equivalent C(1) and two equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Ni(1) and one N(2) atom. In the second C site, C(2) is bonded in a linear geometry to one Ni(1) and one N(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to three equivalent K(1) and one C(2) atom. In the second N site, N(2) is bonded in a 4-coordinate geometry to three equivalent K(1) and one C(1) atom. is represented by the CIF card [CIF]
data_K2Ni(CN)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.681
_cell_length_b   4.395
_cell_length_c   13.385
_cell_angle_alpha   89.177
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   451.817
_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  0.042  0.715  0.655  1.0
  K  K1  1  0.542  0.285  0.845  1.0
  K  K2  1  0.458  0.715  0.155  1.0
  K  K3  1  0.958  0.285  0.345  1.0
  Ni  Ni4  1  0.000  0.000  0.000  1.0
  Ni  Ni5  1  0.500  0.000  0.500  1.0
  C  C6  1  0.882  0.850  0.892  1.0
  C  C7  1  0.118  0.150  0.108  1.0
  C  C8  1  0.618  0.850  0.392  1.0
  C  C9  1  0.382  0.150  0.608  1.0
  C  C10  1  0.292  0.855  0.451  1.0
  C  C11  1  0.792  0.145  0.049  1.0
  C  C12  1  0.208  0.855  0.951  1.0
  C  C13  1  0.708  0.145  0.549  1.0
  N  N14  1  0.658  0.235  0.078  1.0
  N  N15  1  0.158  0.765  0.422  1.0
  N  N16  1  0.303  0.241  0.677  1.0
  N  N17  1  0.197  0.241  0.177  1.0
  N  N18  1  0.803  0.759  0.823  1.0
  N  N19  1  0.697  0.759  0.323  1.0
  N  N20  1  0.342  0.765  0.922  1.0
  N  N21  1  0.842  0.235  0.578  1.0
[/CIF]
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