The material described by K4N2O5 crystallizes in the monoclinic C2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one N(1), one O(3), two equivalent O(1), and two equivalent O(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one N(1), one O(2), one O(3), and two equivalent O(1) atoms. N(1) is bonded in a distorted bent 120 degrees geometry to one K(1), one K(2), one O(1), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to two equivalent K(1), two equivalent K(2), and one N(1) atom. In the second O site, O(2) is bonded to two equivalent K(2) and four equivalent K(1) atoms to form corner-sharing OK6 octahedra. The corner-sharing octahedral tilt angles are 4°. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one N(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4N2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.487
_cell_length_b   5.487
_cell_length_c   14.302
_cell_angle_alpha   82.545
_cell_angle_beta   82.545
_cell_angle_gamma   92.744
_symmetry_Int_Tables_number   1
_cell_volume   422.357
_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  0.213  0.282  0.244  1.0
  K  K1  1  0.265  0.680  0.924  1.0
  K  K2  1  0.680  0.265  0.424  1.0
  K  K3  1  0.718  0.787  0.256  1.0
  K  K4  1  0.735  0.320  0.076  1.0
  K  K5  1  0.282  0.213  0.744  1.0
  K  K6  1  0.320  0.735  0.576  1.0
  K  K7  1  0.787  0.718  0.756  1.0
  N  N8  1  0.317  0.885  0.120  1.0
  N  N9  1  0.885  0.317  0.620  1.0
  N  N10  1  0.683  0.115  0.880  1.0
  N  N11  1  0.115  0.683  0.380  1.0
  O  O12  1  0.523  0.266  0.903  1.0
  O  O13  1  0.277  0.723  0.750  1.0
  O  O14  1  0.099  0.822  0.107  1.0
  O  O15  1  0.822  0.099  0.607  1.0
  O  O16  1  0.734  0.477  0.597  1.0
  O  O17  1  0.901  0.178  0.893  1.0
  O  O18  1  0.723  0.277  0.250  1.0
  O  O19  1  0.477  0.734  0.097  1.0
  O  O20  1  0.266  0.523  0.403  1.0
  O  O21  1  0.178  0.901  0.393  1.0
[/CIF]
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The material described by K4N2O5 crystallizes in the monoclinic C2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one N(1), one O(3), two equivalent O(1), and two equivalent O(2) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one N(1), one O(2), one O(3), and two equivalent O(1) atoms. N(1) is bonded in a distorted bent 120 degrees geometry to one K(1), one K(2), one O(1), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to two equivalent K(1), two equivalent K(2), and one N(1) atom. In the second O site, O(2) is bonded to two equivalent K(2) and four equivalent K(1) atoms to form corner-sharing OK6 octahedra. The corner-sharing octahedral tilt angles are 4°. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one N(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4N2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.487
_cell_length_b   5.487
_cell_length_c   14.302
_cell_angle_alpha   82.545
_cell_angle_beta   82.545
_cell_angle_gamma   92.744
_symmetry_Int_Tables_number   1
_cell_volume   422.357
_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  0.213  0.282  0.244  1.0
  K  K1  1  0.265  0.680  0.924  1.0
  K  K2  1  0.680  0.265  0.424  1.0
  K  K3  1  0.718  0.787  0.256  1.0
  K  K4  1  0.735  0.320  0.076  1.0
  K  K5  1  0.282  0.213  0.744  1.0
  K  K6  1  0.320  0.735  0.576  1.0
  K  K7  1  0.787  0.718  0.756  1.0
  N  N8  1  0.317  0.885  0.120  1.0
  N  N9  1  0.885  0.317  0.620  1.0
  N  N10  1  0.683  0.115  0.880  1.0
  N  N11  1  0.115  0.683  0.380  1.0
  O  O12  1  0.523  0.266  0.903  1.0
  O  O13  1  0.277  0.723  0.750  1.0
  O  O14  1  0.099  0.822  0.107  1.0
  O  O15  1  0.822  0.099  0.607  1.0
  O  O16  1  0.734  0.477  0.597  1.0
  O  O17  1  0.901  0.178  0.893  1.0
  O  O18  1  0.723  0.277  0.250  1.0
  O  O19  1  0.477  0.734  0.097  1.0
  O  O20  1  0.266  0.523  0.403  1.0
  O  O21  1  0.178  0.901  0.393  1.0
[/CIF]
.