The structure described by KMnO4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 10-coordinate geometry to one O(3), three equivalent O(2), and six equivalent O(1) atoms. Mn(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three 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 Mn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Mn(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1) and one Mn(1) atom. is represented by the CIF file [CIF]
data_KMnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.614
_cell_length_b   7.354
_cell_length_c   9.042
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   373.330
_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  0.250  0.656  0.319  1.0
  K  K1  1  0.750  0.344  0.681  1.0
  K  K2  1  0.750  0.156  0.181  1.0
  K  K3  1  0.250  0.844  0.819  1.0
  Mn  Mn4  1  0.250  0.192  0.438  1.0
  Mn  Mn5  1  0.750  0.808  0.562  1.0
  Mn  Mn6  1  0.750  0.692  0.062  1.0
  Mn  Mn7  1  0.250  0.308  0.938  1.0
  O  O8  1  0.517  0.817  0.081  1.0
  O  O9  1  0.017  0.183  0.919  1.0
  O  O10  1  0.483  0.317  0.419  1.0
  O  O11  1  0.983  0.683  0.581  1.0
  O  O12  1  0.483  0.183  0.919  1.0
  O  O13  1  0.983  0.817  0.081  1.0
  O  O14  1  0.517  0.683  0.581  1.0
  O  O15  1  0.017  0.317  0.419  1.0
  O  O16  1  0.250  0.037  0.314  1.0
  O  O17  1  0.750  0.963  0.686  1.0
  O  O18  1  0.750  0.537  0.186  1.0
  O  O19  1  0.250  0.463  0.814  1.0
  O  O20  1  0.250  0.104  0.600  1.0
  O  O21  1  0.750  0.896  0.400  1.0
  O  O22  1  0.750  0.604  0.900  1.0
  O  O23  1  0.250  0.396  0.100  1.0
[/CIF]
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The structure described by KMnO4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 10-coordinate geometry to one O(3), three equivalent O(2), and six equivalent O(1) atoms. Mn(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three 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 Mn(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Mn(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1) and one Mn(1) atom. is represented by the CIF file [CIF]
data_KMnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.614
_cell_length_b   7.354
_cell_length_c   9.042
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   373.330
_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  0.250  0.656  0.319  1.0
  K  K1  1  0.750  0.344  0.681  1.0
  K  K2  1  0.750  0.156  0.181  1.0
  K  K3  1  0.250  0.844  0.819  1.0
  Mn  Mn4  1  0.250  0.192  0.438  1.0
  Mn  Mn5  1  0.750  0.808  0.562  1.0
  Mn  Mn6  1  0.750  0.692  0.062  1.0
  Mn  Mn7  1  0.250  0.308  0.938  1.0
  O  O8  1  0.517  0.817  0.081  1.0
  O  O9  1  0.017  0.183  0.919  1.0
  O  O10  1  0.483  0.317  0.419  1.0
  O  O11  1  0.983  0.683  0.581  1.0
  O  O12  1  0.483  0.183  0.919  1.0
  O  O13  1  0.983  0.817  0.081  1.0
  O  O14  1  0.517  0.683  0.581  1.0
  O  O15  1  0.017  0.317  0.419  1.0
  O  O16  1  0.250  0.037  0.314  1.0
  O  O17  1  0.750  0.963  0.686  1.0
  O  O18  1  0.750  0.537  0.186  1.0
  O  O19  1  0.250  0.463  0.814  1.0
  O  O20  1  0.250  0.104  0.600  1.0
  O  O21  1  0.750  0.896  0.400  1.0
  O  O22  1  0.750  0.604  0.900  1.0
  O  O23  1  0.250  0.396  0.100  1.0
[/CIF]
.