The compound described by K3Ni(NO2)5 crystallizes in the monoclinic P2_1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one N(3), one O(1), one O(2), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one N(3), one O(1), one O(2), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. Ni(1) is bonded in an octahedral geometry to one N(1), one N(2), one N(4), one N(5), one O(4), and one O(7) atom. There are five inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Ni(1), one O(10), and one O(3) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ni(1), one O(1), and one O(2) atom. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to one K(2), one K(3), one O(4), and one O(7) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Ni(1), one O(5), and one O(8) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Ni(1), one O(6), and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Ni(1), and one N(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(4) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one Ni(1), and one N(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(5) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(1) and one N(1) atom. is represented by the CIF file [CIF]
data_K3Ni(NO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.152
_cell_length_b   7.237
_cell_length_c   7.321
_cell_angle_alpha   82.014
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   585.161
_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  0.250  0.774  0.687  1.0
  K  K1  1  0.750  0.226  0.313  1.0
  K  K2  1  0.506  0.275  0.804  1.0
  K  K3  1  0.006  0.725  0.196  1.0
  K  K4  1  0.492  0.725  0.196  1.0
  K  K5  1  0.992  0.275  0.804  1.0
  Ni  Ni6  1  0.250  0.241  0.290  1.0
  Ni  Ni7  1  0.750  0.759  0.710  1.0
  N  N8  1  0.255  0.997  0.169  1.0
  N  N9  1  0.755  0.003  0.831  1.0
  N  N10  1  0.250  0.437  0.052  1.0
  N  N11  1  0.750  0.563  0.948  1.0
  N  N12  1  0.250  0.321  0.623  1.0
  N  N13  1  0.750  0.679  0.377  1.0
  N  N14  1  0.445  0.223  0.301  1.0
  N  N15  1  0.945  0.777  0.699  1.0
  N  N16  1  0.557  0.776  0.698  1.0
  N  N17  1  0.057  0.224  0.302  1.0
  O  O18  1  0.153  0.503  0.981  1.0
  O  O19  1  0.653  0.497  0.019  1.0
  O  O20  1  0.847  0.498  0.019  1.0
  O  O21  1  0.347  0.502  0.981  1.0
  O  O22  1  0.248  0.842  0.274  1.0
  O  O23  1  0.748  0.158  0.726  1.0
  O  O24  1  0.250  0.155  0.583  1.0
  O  O25  1  0.750  0.845  0.417  1.0
  O  O26  1  0.503  0.119  0.207  1.0
  O  O27  1  0.003  0.881  0.793  1.0
  O  O28  1  0.500  0.881  0.793  1.0
  O  O29  1  0.000  0.119  0.207  1.0
  O  O30  1  0.250  0.444  0.481  1.0
  O  O31  1  0.750  0.556  0.519  1.0
  O  O32  1  0.504  0.313  0.407  1.0
  O  O33  1  0.004  0.687  0.593  1.0
  O  O34  1  0.496  0.689  0.593  1.0
  O  O35  1  0.996  0.311  0.407  1.0
  O  O36  1  0.270  0.996  0.000  1.0
  O  O37  1  0.770  0.004  1.000  1.0
[/CIF]
.
The compound described by K3Ni(NO2)5 crystallizes in the monoclinic P2_1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one N(3), one O(1), one O(2), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one N(3), one O(1), one O(2), one O(3), one O(5), one O(6), one O(8), and one O(9) atom. Ni(1) is bonded in an octahedral geometry to one N(1), one N(2), one N(4), one N(5), one O(4), and one O(7) atom. There are five inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Ni(1), one O(10), and one O(3) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Ni(1), one O(1), and one O(2) atom. In the third N site, N(3) is bonded in a distorted bent 120 degrees geometry to one K(2), one K(3), one O(4), and one O(7) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Ni(1), one O(5), and one O(8) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Ni(1), one O(6), and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Ni(1), and one N(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(4) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one Ni(1), and one N(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(4) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one N(5) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(1) and one N(1) atom. is represented by the CIF file [CIF]
data_K3Ni(NO2)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.152
_cell_length_b   7.237
_cell_length_c   7.321
_cell_angle_alpha   82.014
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   585.161
_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  0.250  0.774  0.687  1.0
  K  K1  1  0.750  0.226  0.313  1.0
  K  K2  1  0.506  0.275  0.804  1.0
  K  K3  1  0.006  0.725  0.196  1.0
  K  K4  1  0.492  0.725  0.196  1.0
  K  K5  1  0.992  0.275  0.804  1.0
  Ni  Ni6  1  0.250  0.241  0.290  1.0
  Ni  Ni7  1  0.750  0.759  0.710  1.0
  N  N8  1  0.255  0.997  0.169  1.0
  N  N9  1  0.755  0.003  0.831  1.0
  N  N10  1  0.250  0.437  0.052  1.0
  N  N11  1  0.750  0.563  0.948  1.0
  N  N12  1  0.250  0.321  0.623  1.0
  N  N13  1  0.750  0.679  0.377  1.0
  N  N14  1  0.445  0.223  0.301  1.0
  N  N15  1  0.945  0.777  0.699  1.0
  N  N16  1  0.557  0.776  0.698  1.0
  N  N17  1  0.057  0.224  0.302  1.0
  O  O18  1  0.153  0.503  0.981  1.0
  O  O19  1  0.653  0.497  0.019  1.0
  O  O20  1  0.847  0.498  0.019  1.0
  O  O21  1  0.347  0.502  0.981  1.0
  O  O22  1  0.248  0.842  0.274  1.0
  O  O23  1  0.748  0.158  0.726  1.0
  O  O24  1  0.250  0.155  0.583  1.0
  O  O25  1  0.750  0.845  0.417  1.0
  O  O26  1  0.503  0.119  0.207  1.0
  O  O27  1  0.003  0.881  0.793  1.0
  O  O28  1  0.500  0.881  0.793  1.0
  O  O29  1  0.000  0.119  0.207  1.0
  O  O30  1  0.250  0.444  0.481  1.0
  O  O31  1  0.750  0.556  0.519  1.0
  O  O32  1  0.504  0.313  0.407  1.0
  O  O33  1  0.004  0.687  0.593  1.0
  O  O34  1  0.496  0.689  0.593  1.0
  O  O35  1  0.996  0.311  0.407  1.0
  O  O36  1  0.270  0.996  0.000  1.0
  O  O37  1  0.770  0.004  1.000  1.0
[/CIF]
.