The crystal structure described by K2Ce(NO3)6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 10-coordinate geometry to one O(3), one O(4), one O(6), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(5) atoms. Ce(1) is bonded in a cuboctahedral geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(8) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(3) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ce(1) and one N(2) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one Ce(1), and one N(2) atom. In the seventh O site, O(6) is bonded in a single-bond geometry to one K(1) and one N(1) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the ninth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(1) and one N(2) atom. is represented by the CIF file [CIF]
data_K2Ce(NO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.668
_cell_length_b   8.253
_cell_length_c   12.435
_cell_angle_alpha   91.938
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   683.853
_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  0.780  0.952  0.341  1.0
  K  K1  1  0.280  0.548  0.159  1.0
  K  K2  1  0.220  0.048  0.659  1.0
  K  K3  1  0.720  0.452  0.841  1.0
  Ce  Ce4  1  0.500  0.500  0.500  1.0
  Ce  Ce5  1  0.000  0.000  0.000  1.0
  N  N6  1  0.286  0.780  0.887  1.0
  N  N7  1  0.770  0.533  0.312  1.0
  N  N8  1  0.255  0.786  0.451  1.0
  N  N9  1  0.214  0.280  0.387  1.0
  N  N10  1  0.270  0.967  0.188  1.0
  N  N11  1  0.755  0.714  0.049  1.0
  N  N12  1  0.230  0.467  0.688  1.0
  N  N13  1  0.745  0.214  0.549  1.0
  N  N14  1  0.245  0.286  0.951  1.0
  N  N15  1  0.714  0.220  0.113  1.0
  N  N16  1  0.786  0.720  0.613  1.0
  N  N17  1  0.730  0.033  0.812  1.0
  O  O18  1  0.360  0.400  0.944  1.0
  O  O19  1  0.713  0.921  0.878  1.0
  O  O20  1  0.084  0.298  0.007  1.0
  O  O21  1  0.702  0.188  0.012  1.0
  O  O22  1  0.860  0.100  0.556  1.0
  O  O23  1  0.888  0.123  0.823  1.0
  O  O24  1  0.388  0.377  0.677  1.0
  O  O25  1  0.601  0.312  0.160  1.0
  O  O26  1  0.202  0.312  0.488  1.0
  O  O27  1  0.416  0.798  0.507  1.0
  O  O28  1  0.645  0.646  0.661  1.0
  O  O29  1  0.584  0.202  0.493  1.0
  O  O30  1  0.894  0.559  0.242  1.0
  O  O31  1  0.106  0.441  0.758  1.0
  O  O32  1  0.394  0.941  0.258  1.0
  O  O33  1  0.612  0.623  0.323  1.0
  O  O34  1  0.640  0.600  0.056  1.0
  O  O35  1  0.112  0.877  0.177  1.0
  O  O36  1  0.101  0.188  0.340  1.0
  O  O37  1  0.899  0.812  0.660  1.0
  O  O38  1  0.277  0.148  0.905  1.0
  O  O39  1  0.798  0.688  0.512  1.0
  O  O40  1  0.213  0.579  0.622  1.0
  O  O41  1  0.787  0.421  0.378  1.0
  O  O42  1  0.145  0.854  0.839  1.0
  O  O43  1  0.399  0.688  0.840  1.0
  O  O44  1  0.223  0.648  0.405  1.0
  O  O45  1  0.140  0.900  0.444  1.0
  O  O46  1  0.916  0.702  0.993  1.0
  O  O47  1  0.355  0.354  0.339  1.0
  O  O48  1  0.777  0.352  0.595  1.0
  O  O49  1  0.287  0.079  0.122  1.0
  O  O50  1  0.298  0.812  0.988  1.0
  O  O51  1  0.606  0.059  0.742  1.0
  O  O52  1  0.855  0.146  0.161  1.0
  O  O53  1  0.723  0.852  0.095  1.0
[/CIF]
.
The crystal structure described by K2Ce(NO3)6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 10-coordinate geometry to one O(3), one O(4), one O(6), one O(7), one O(8), one O(9), two equivalent O(1), and two equivalent O(5) atoms. Ce(1) is bonded in a cuboctahedral geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(9) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(4), one O(6), and one O(7) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(5), and one O(8) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(3), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one N(3) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Ce(1) and one N(2) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(3) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1), one Ce(1), and one N(2) atom. In the seventh O site, O(6) is bonded in a single-bond geometry to one K(1) and one N(1) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one K(1), one Ce(1), and one N(1) atom. In the ninth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one K(1) and one N(2) atom. is represented by the CIF file [CIF]
data_K2Ce(NO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.668
_cell_length_b   8.253
_cell_length_c   12.435
_cell_angle_alpha   91.938
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   683.853
_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  0.780  0.952  0.341  1.0
  K  K1  1  0.280  0.548  0.159  1.0
  K  K2  1  0.220  0.048  0.659  1.0
  K  K3  1  0.720  0.452  0.841  1.0
  Ce  Ce4  1  0.500  0.500  0.500  1.0
  Ce  Ce5  1  0.000  0.000  0.000  1.0
  N  N6  1  0.286  0.780  0.887  1.0
  N  N7  1  0.770  0.533  0.312  1.0
  N  N8  1  0.255  0.786  0.451  1.0
  N  N9  1  0.214  0.280  0.387  1.0
  N  N10  1  0.270  0.967  0.188  1.0
  N  N11  1  0.755  0.714  0.049  1.0
  N  N12  1  0.230  0.467  0.688  1.0
  N  N13  1  0.745  0.214  0.549  1.0
  N  N14  1  0.245  0.286  0.951  1.0
  N  N15  1  0.714  0.220  0.113  1.0
  N  N16  1  0.786  0.720  0.613  1.0
  N  N17  1  0.730  0.033  0.812  1.0
  O  O18  1  0.360  0.400  0.944  1.0
  O  O19  1  0.713  0.921  0.878  1.0
  O  O20  1  0.084  0.298  0.007  1.0
  O  O21  1  0.702  0.188  0.012  1.0
  O  O22  1  0.860  0.100  0.556  1.0
  O  O23  1  0.888  0.123  0.823  1.0
  O  O24  1  0.388  0.377  0.677  1.0
  O  O25  1  0.601  0.312  0.160  1.0
  O  O26  1  0.202  0.312  0.488  1.0
  O  O27  1  0.416  0.798  0.507  1.0
  O  O28  1  0.645  0.646  0.661  1.0
  O  O29  1  0.584  0.202  0.493  1.0
  O  O30  1  0.894  0.559  0.242  1.0
  O  O31  1  0.106  0.441  0.758  1.0
  O  O32  1  0.394  0.941  0.258  1.0
  O  O33  1  0.612  0.623  0.323  1.0
  O  O34  1  0.640  0.600  0.056  1.0
  O  O35  1  0.112  0.877  0.177  1.0
  O  O36  1  0.101  0.188  0.340  1.0
  O  O37  1  0.899  0.812  0.660  1.0
  O  O38  1  0.277  0.148  0.905  1.0
  O  O39  1  0.798  0.688  0.512  1.0
  O  O40  1  0.213  0.579  0.622  1.0
  O  O41  1  0.787  0.421  0.378  1.0
  O  O42  1  0.145  0.854  0.839  1.0
  O  O43  1  0.399  0.688  0.840  1.0
  O  O44  1  0.223  0.648  0.405  1.0
  O  O45  1  0.140  0.900  0.444  1.0
  O  O46  1  0.916  0.702  0.993  1.0
  O  O47  1  0.355  0.354  0.339  1.0
  O  O48  1  0.777  0.352  0.595  1.0
  O  O49  1  0.287  0.079  0.122  1.0
  O  O50  1  0.298  0.812  0.988  1.0
  O  O51  1  0.606  0.059  0.742  1.0
  O  O52  1  0.855  0.146  0.161  1.0
  O  O53  1  0.723  0.852  0.095  1.0
[/CIF]
.