The structure described by K4Ru(NO2)6 crystallizes in the trigonal R-3 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. Ru(1) is bonded in an octahedral geometry to six equivalent N(1) atoms. N(1) is bonded in a trigonal planar geometry to one Ru(1), one O(1), and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one N(1) atom. is represented by the CIF file [CIF]
data_K4Ru(NO2)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.709
_cell_length_b   8.709
_cell_length_c   8.709
_cell_angle_alpha   51.731
_cell_angle_beta   51.731
_cell_angle_gamma   51.731
_symmetry_Int_Tables_number   1
_cell_volume   376.213
_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  0.621  0.621  0.621  1.0
  K  K1  1  0.379  0.379  0.379  1.0
  K  K2  1  0.193  0.193  0.193  1.0
  K  K3  1  0.807  0.807  0.807  1.0
  Ru  Ru4  1  0.000  0.000  0.000  1.0
  N  N5  1  0.308  0.927  0.928  1.0
  N  N6  1  0.928  0.308  0.927  1.0
  N  N7  1  0.073  0.072  0.692  1.0
  N  N8  1  0.927  0.928  0.308  1.0
  N  N9  1  0.072  0.692  0.073  1.0
  N  N10  1  0.692  0.073  0.072  1.0
  O  O11  1  0.858  0.068  0.367  1.0
  O  O12  1  0.068  0.367  0.858  1.0
  O  O13  1  0.633  0.142  0.932  1.0
  O  O14  1  0.043  0.261  0.558  1.0
  O  O15  1  0.739  0.442  0.957  1.0
  O  O16  1  0.142  0.932  0.633  1.0
  O  O17  1  0.957  0.739  0.442  1.0
  O  O18  1  0.442  0.957  0.739  1.0
  O  O19  1  0.367  0.858  0.068  1.0
  O  O20  1  0.558  0.043  0.261  1.0
  O  O21  1  0.261  0.558  0.043  1.0
  O  O22  1  0.932  0.633  0.142  1.0
[/CIF]
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The structure described by K4Ru(NO2)6 crystallizes in the trigonal R-3 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. Ru(1) is bonded in an octahedral geometry to six equivalent N(1) atoms. N(1) is bonded in a trigonal planar geometry to one Ru(1), one O(1), and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(1), and one N(1) atom. is represented by the CIF file [CIF]
data_K4Ru(NO2)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.709
_cell_length_b   8.709
_cell_length_c   8.709
_cell_angle_alpha   51.731
_cell_angle_beta   51.731
_cell_angle_gamma   51.731
_symmetry_Int_Tables_number   1
_cell_volume   376.213
_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  0.621  0.621  0.621  1.0
  K  K1  1  0.379  0.379  0.379  1.0
  K  K2  1  0.193  0.193  0.193  1.0
  K  K3  1  0.807  0.807  0.807  1.0
  Ru  Ru4  1  0.000  0.000  0.000  1.0
  N  N5  1  0.308  0.927  0.928  1.0
  N  N6  1  0.928  0.308  0.927  1.0
  N  N7  1  0.073  0.072  0.692  1.0
  N  N8  1  0.927  0.928  0.308  1.0
  N  N9  1  0.072  0.692  0.073  1.0
  N  N10  1  0.692  0.073  0.072  1.0
  O  O11  1  0.858  0.068  0.367  1.0
  O  O12  1  0.068  0.367  0.858  1.0
  O  O13  1  0.633  0.142  0.932  1.0
  O  O14  1  0.043  0.261  0.558  1.0
  O  O15  1  0.739  0.442  0.957  1.0
  O  O16  1  0.142  0.932  0.633  1.0
  O  O17  1  0.957  0.739  0.442  1.0
  O  O18  1  0.442  0.957  0.739  1.0
  O  O19  1  0.367  0.858  0.068  1.0
  O  O20  1  0.558  0.043  0.261  1.0
  O  O21  1  0.261  0.558  0.043  1.0
  O  O22  1  0.932  0.633  0.142  1.0
[/CIF]
.