The structure described by K2MnH4(SO5)2 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(6), one O(8), one O(9), two equivalent O(5), and two equivalent O(7) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(8), and two equivalent O(2) atoms. Mn(1) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra and corners with two equivalent S(2)O4 tetrahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(9) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(10) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-49°. In the second S site, S(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-47°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(2) and one S(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(2), one Mn(1), and one S(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mn(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one K(1) and one S(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent K(1), one Mn(1), and one S(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mn(1), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one K(1), one Mn(1), one H(1), and one H(2) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Mn(1), one H(3), and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2MnH4(SO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.616
_cell_length_b   7.442
_cell_length_c   10.840
_cell_angle_alpha   72.829
_cell_angle_beta   73.845
_cell_angle_gamma   69.792
_symmetry_Int_Tables_number   1
_cell_volume   469.211
_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  0.789  0.749  0.400  1.0
  K  K1  1  0.211  0.251  0.600  1.0
  K  K2  1  0.735  0.266  0.074  1.0
  K  K3  1  0.265  0.734  0.926  1.0
  Mn  Mn4  1  0.754  0.973  0.751  1.0
  Mn  Mn5  1  0.246  0.027  0.249  1.0
  H  H6  1  0.731  0.340  0.643  1.0
  H  H7  1  0.269  0.660  0.357  1.0
  H  H8  1  0.644  0.319  0.798  1.0
  H  H9  1  0.356  0.681  0.202  1.0
  H  H10  1  0.643  0.677  0.705  1.0
  H  H11  1  0.357  0.323  0.295  1.0
  H  H12  1  0.841  0.577  0.786  1.0
  H  H13  1  0.159  0.423  0.214  1.0
  S  S14  1  0.732  0.772  0.085  1.0
  S  S15  1  0.268  0.228  0.915  1.0
  S  S16  1  0.744  0.225  0.425  1.0
  S  S17  1  0.256  0.775  0.575  1.0
  O  O18  1  0.926  0.632  0.137  1.0
  O  O19  1  0.074  0.368  0.863  1.0
  O  O20  1  0.585  0.668  0.072  1.0
  O  O21  1  0.415  0.332  0.928  1.0
  O  O22  1  0.810  0.894  0.953  1.0
  O  O23  1  0.190  0.106  0.047  1.0
  O  O24  1  0.606  0.911  0.176  1.0
  O  O25  1  0.394  0.089  0.824  1.0
  O  O26  1  0.857  0.342  0.456  1.0
  O  O27  1  0.143  0.658  0.544  1.0
  O  O28  1  0.538  0.351  0.379  1.0
  O  O29  1  0.462  0.649  0.621  1.0
  O  O30  1  0.690  0.071  0.545  1.0
  O  O31  1  0.310  0.929  0.455  1.0
  O  O32  1  0.891  0.120  0.318  1.0
  O  O33  1  0.109  0.880  0.682  1.0
  O  O34  1  0.772  0.272  0.729  1.0
  O  O35  1  0.228  0.728  0.271  1.0
  O  O36  1  0.709  0.688  0.774  1.0
  O  O37  1  0.291  0.312  0.226  1.0
[/CIF]
.
The structure described by K2MnH4(SO5)2 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to one O(1), one O(4), one O(6), one O(8), one O(9), two equivalent O(5), and two equivalent O(7) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(8), and two equivalent O(2) atoms. Mn(1) is bonded to one O(10), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent S(1)O4 tetrahedra and corners with two equivalent S(2)O4 tetrahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(9) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(10) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-49°. In the second S site, S(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-47°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent K(2) and one S(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(2), one Mn(1), and one S(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mn(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one K(1) and one S(2) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to two equivalent K(1), one Mn(1), and one S(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Mn(1), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one K(1), one Mn(1), one H(1), and one H(2) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Mn(1), one H(3), and one H(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2MnH4(SO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.616
_cell_length_b   7.442
_cell_length_c   10.840
_cell_angle_alpha   72.829
_cell_angle_beta   73.845
_cell_angle_gamma   69.792
_symmetry_Int_Tables_number   1
_cell_volume   469.211
_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  0.789  0.749  0.400  1.0
  K  K1  1  0.211  0.251  0.600  1.0
  K  K2  1  0.735  0.266  0.074  1.0
  K  K3  1  0.265  0.734  0.926  1.0
  Mn  Mn4  1  0.754  0.973  0.751  1.0
  Mn  Mn5  1  0.246  0.027  0.249  1.0
  H  H6  1  0.731  0.340  0.643  1.0
  H  H7  1  0.269  0.660  0.357  1.0
  H  H8  1  0.644  0.319  0.798  1.0
  H  H9  1  0.356  0.681  0.202  1.0
  H  H10  1  0.643  0.677  0.705  1.0
  H  H11  1  0.357  0.323  0.295  1.0
  H  H12  1  0.841  0.577  0.786  1.0
  H  H13  1  0.159  0.423  0.214  1.0
  S  S14  1  0.732  0.772  0.085  1.0
  S  S15  1  0.268  0.228  0.915  1.0
  S  S16  1  0.744  0.225  0.425  1.0
  S  S17  1  0.256  0.775  0.575  1.0
  O  O18  1  0.926  0.632  0.137  1.0
  O  O19  1  0.074  0.368  0.863  1.0
  O  O20  1  0.585  0.668  0.072  1.0
  O  O21  1  0.415  0.332  0.928  1.0
  O  O22  1  0.810  0.894  0.953  1.0
  O  O23  1  0.190  0.106  0.047  1.0
  O  O24  1  0.606  0.911  0.176  1.0
  O  O25  1  0.394  0.089  0.824  1.0
  O  O26  1  0.857  0.342  0.456  1.0
  O  O27  1  0.143  0.658  0.544  1.0
  O  O28  1  0.538  0.351  0.379  1.0
  O  O29  1  0.462  0.649  0.621  1.0
  O  O30  1  0.690  0.071  0.545  1.0
  O  O31  1  0.310  0.929  0.455  1.0
  O  O32  1  0.891  0.120  0.318  1.0
  O  O33  1  0.109  0.880  0.682  1.0
  O  O34  1  0.772  0.272  0.729  1.0
  O  O35  1  0.228  0.728  0.271  1.0
  O  O36  1  0.709  0.688  0.774  1.0
  O  O37  1  0.291  0.312  0.226  1.0
[/CIF]
.