The structure described by KMn(SeO4)2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(4), and six equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SeO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-49°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMn(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.941
_cell_length_b   5.117
_cell_length_c   8.150
_cell_angle_alpha   83.253
_cell_angle_beta   85.652
_cell_angle_gamma   67.681
_symmetry_Int_Tables_number   1
_cell_volume   189.173
_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  0.000  0.000  0.500  1.0
  Mn  Mn1  1  0.000  0.000  0.000  1.0
  O  O2  1  0.245  0.778  0.186  1.0
  O  O3  1  0.755  0.222  0.814  1.0
  O  O4  1  0.237  0.234  0.964  1.0
  O  O5  1  0.763  0.766  0.036  1.0
  O  O6  1  0.686  0.694  0.385  1.0
  O  O7  1  0.314  0.306  0.615  1.0
  O  O8  1  0.724  0.283  0.188  1.0
  O  O9  1  0.276  0.717  0.812  1.0
  Se  Se10  1  0.618  0.630  0.203  1.0
  Se  Se11  1  0.382  0.370  0.797  1.0
[/CIF]
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The structure described by KMn(SeO4)2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(4), and six equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SeO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-49°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Mn(1), and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMn(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.941
_cell_length_b   5.117
_cell_length_c   8.150
_cell_angle_alpha   83.253
_cell_angle_beta   85.652
_cell_angle_gamma   67.681
_symmetry_Int_Tables_number   1
_cell_volume   189.173
_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  0.000  0.000  0.500  1.0
  Mn  Mn1  1  0.000  0.000  0.000  1.0
  O  O2  1  0.245  0.778  0.186  1.0
  O  O3  1  0.755  0.222  0.814  1.0
  O  O4  1  0.237  0.234  0.964  1.0
  O  O5  1  0.763  0.766  0.036  1.0
  O  O6  1  0.686  0.694  0.385  1.0
  O  O7  1  0.314  0.306  0.615  1.0
  O  O8  1  0.724  0.283  0.188  1.0
  O  O9  1  0.276  0.717  0.812  1.0
  Se  Se10  1  0.618  0.630  0.203  1.0
  Se  Se11  1  0.382  0.370  0.797  1.0
[/CIF]
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