The material described by K4N2O5 crystallizes in the orthorhombic Ccce space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one O(2) and six equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing KO7 pentagonal bipyramids. In the second K site, K(2) is bonded in a 2-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. N(1) is bonded in a distorted bent 120 degrees geometry to two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one N(1) atom. In the second O site, O(2) is bonded to two equivalent K(1) and four equivalent K(2) atoms to form corner-sharing OK6 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4N2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.700
_cell_length_b   8.700
_cell_length_c   7.205
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   130.489
_symmetry_Int_Tables_number   1
_cell_volume   414.761
_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  0.335  0.665  0.000  1.0
  K  K1  1  0.750  0.750  0.250  1.0
  K  K2  1  0.250  0.250  0.250  1.0
  K  K3  1  0.165  0.835  0.500  1.0
  K  K4  1  0.665  0.335  0.000  1.0
  K  K5  1  0.750  0.750  0.750  1.0
  K  K6  1  0.250  0.250  0.750  1.0
  K  K7  1  0.835  0.165  0.500  1.0
  N  N8  1  0.120  0.880  0.000  1.0
  N  N9  1  0.880  0.120  0.000  1.0
  N  N10  1  0.380  0.620  0.500  1.0
  N  N11  1  0.620  0.380  0.500  1.0
  O  O12  1  0.269  0.943  0.103  1.0
  O  O13  1  0.500  0.500  0.000  1.0
  O  O14  1  0.443  0.769  0.603  1.0
  O  O15  1  0.231  0.557  0.397  1.0
  O  O16  1  0.731  0.057  0.103  1.0
  O  O17  1  0.769  0.443  0.397  1.0
  O  O18  1  0.000  0.000  0.500  1.0
  O  O19  1  0.057  0.731  0.897  1.0
  O  O20  1  0.557  0.231  0.603  1.0
  O  O21  1  0.943  0.269  0.897  1.0
[/CIF]
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The material described by K4N2O5 crystallizes in the orthorhombic Ccce space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one O(2) and six equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing KO7 pentagonal bipyramids. In the second K site, K(2) is bonded in a 2-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. N(1) is bonded in a distorted bent 120 degrees geometry to two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one N(1) atom. In the second O site, O(2) is bonded to two equivalent K(1) and four equivalent K(2) atoms to form corner-sharing OK6 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4N2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.700
_cell_length_b   8.700
_cell_length_c   7.205
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   130.489
_symmetry_Int_Tables_number   1
_cell_volume   414.761
_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  0.335  0.665  0.000  1.0
  K  K1  1  0.750  0.750  0.250  1.0
  K  K2  1  0.250  0.250  0.250  1.0
  K  K3  1  0.165  0.835  0.500  1.0
  K  K4  1  0.665  0.335  0.000  1.0
  K  K5  1  0.750  0.750  0.750  1.0
  K  K6  1  0.250  0.250  0.750  1.0
  K  K7  1  0.835  0.165  0.500  1.0
  N  N8  1  0.120  0.880  0.000  1.0
  N  N9  1  0.880  0.120  0.000  1.0
  N  N10  1  0.380  0.620  0.500  1.0
  N  N11  1  0.620  0.380  0.500  1.0
  O  O12  1  0.269  0.943  0.103  1.0
  O  O13  1  0.500  0.500  0.000  1.0
  O  O14  1  0.443  0.769  0.603  1.0
  O  O15  1  0.231  0.557  0.397  1.0
  O  O16  1  0.731  0.057  0.103  1.0
  O  O17  1  0.769  0.443  0.397  1.0
  O  O18  1  0.000  0.000  0.500  1.0
  O  O19  1  0.057  0.731  0.897  1.0
  O  O20  1  0.557  0.231  0.603  1.0
  O  O21  1  0.943  0.269  0.897  1.0
[/CIF]
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