The crystal structure described by KNO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. N(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one N(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KNO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.512
_cell_length_b   5.163
_cell_length_c   7.167
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   352.011
_cell_formula_units_Z   4
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  0.253  0.250  0.583  1.0
  K  K1  1  0.753  0.250  0.917  1.0
  K  K2  1  0.747  0.750  0.417  1.0
  K  K3  1  0.247  0.750  0.083  1.0
  N  N4  1  0.522  0.250  0.294  1.0
  N  N5  1  0.022  0.250  0.206  1.0
  N  N6  1  0.478  0.750  0.706  1.0
  N  N7  1  0.978  0.750  0.794  1.0
  O  O8  1  0.656  0.250  0.303  1.0
  O  O9  1  0.156  0.250  0.197  1.0
  O  O10  1  0.344  0.750  0.697  1.0
  O  O11  1  0.844  0.750  0.803  1.0
  O  O12  1  0.043  0.537  0.789  1.0
  O  O13  1  0.543  0.963  0.711  1.0
  O  O14  1  0.957  0.037  0.211  1.0
  O  O15  1  0.457  0.463  0.289  1.0
  O  O16  1  0.957  0.463  0.211  1.0
  O  O17  1  0.457  0.037  0.289  1.0
  O  O18  1  0.043  0.963  0.789  1.0
  O  O19  1  0.543  0.537  0.711  1.0
[/CIF]
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The crystal structure described by KNO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. N(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one N(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KNO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.512
_cell_length_b   5.163
_cell_length_c   7.167
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   352.011
_cell_formula_units_Z   4
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  0.253  0.250  0.583  1.0
  K  K1  1  0.753  0.250  0.917  1.0
  K  K2  1  0.747  0.750  0.417  1.0
  K  K3  1  0.247  0.750  0.083  1.0
  N  N4  1  0.522  0.250  0.294  1.0
  N  N5  1  0.022  0.250  0.206  1.0
  N  N6  1  0.478  0.750  0.706  1.0
  N  N7  1  0.978  0.750  0.794  1.0
  O  O8  1  0.656  0.250  0.303  1.0
  O  O9  1  0.156  0.250  0.197  1.0
  O  O10  1  0.344  0.750  0.697  1.0
  O  O11  1  0.844  0.750  0.803  1.0
  O  O12  1  0.043  0.537  0.789  1.0
  O  O13  1  0.543  0.963  0.711  1.0
  O  O14  1  0.957  0.037  0.211  1.0
  O  O15  1  0.457  0.463  0.289  1.0
  O  O16  1  0.957  0.463  0.211  1.0
  O  O17  1  0.457  0.037  0.289  1.0
  O  O18  1  0.043  0.963  0.789  1.0
  O  O19  1  0.543  0.537  0.711  1.0
[/CIF]
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