The structure described by MnH2(SeO4)2 crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with three equivalent Se(1)O4 tetrahedra and corners with three equivalent Se(2)O4 tetrahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(1) and one O(8) atom. There are two inequivalent Se sites. In the first Se site, 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 43-52°. In the second Se site, Se(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form SeO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-46°. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a water-like geometry to one H(1) and one Se(1) atom. In the second O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(1) and one Se(2) atom. In the third O site, O(6) is bonded in a bent 150 degrees geometry to one Mn(1) and one Se(2) atom. In the fourth O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one Se(2) atom. In the fifth O site, O(8) is bonded in a water-like geometry to one H(2) and one Se(2) atom. In the sixth O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one H(2), and one Se(1) atom. In the seventh O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Se(1) atom. In the eighth O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MnH2(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.719
_cell_length_b   7.012
_cell_length_c   10.026
_cell_angle_alpha   69.589
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   706.241
_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
  Mn  Mn0  1  0.529  0.130  0.699  1.0
  Mn  Mn1  1  0.029  0.870  0.801  1.0
  Mn  Mn2  1  0.471  0.870  0.301  1.0
  Mn  Mn3  1  0.971  0.130  0.199  1.0
  H  H4  1  0.781  0.678  0.713  1.0
  H  H5  1  0.281  0.322  0.787  1.0
  H  H6  1  0.219  0.322  0.287  1.0
  H  H7  1  0.719  0.678  0.213  1.0
  H  H8  1  0.544  0.308  0.098  1.0
  H  H9  1  0.044  0.692  0.402  1.0
  H  H10  1  0.456  0.692  0.902  1.0
  H  H11  1  0.956  0.308  0.598  1.0
  Se  Se12  1  0.580  0.656  0.648  1.0
  Se  Se13  1  0.080  0.344  0.852  1.0
  Se  Se14  1  0.420  0.344  0.352  1.0
  Se  Se15  1  0.920  0.656  0.148  1.0
  Se  Se16  1  0.682  0.128  0.015  1.0
  Se  Se17  1  0.182  0.872  0.485  1.0
  Se  Se18  1  0.318  0.872  0.985  1.0
  Se  Se19  1  0.818  0.128  0.515  1.0
  O  O20  1  0.526  0.796  0.742  1.0
  O  O21  1  0.026  0.204  0.758  1.0
  O  O22  1  0.474  0.204  0.258  1.0
  O  O23  1  0.974  0.796  0.242  1.0
  O  O24  1  0.495  0.450  0.677  1.0
  O  O25  1  0.995  0.550  0.823  1.0
  O  O26  1  0.505  0.550  0.323  1.0
  O  O27  1  0.005  0.450  0.177  1.0
  O  O28  1  0.602  0.800  0.480  1.0
  O  O29  1  0.102  0.200  0.020  1.0
  O  O30  1  0.398  0.200  0.520  1.0
  O  O31  1  0.898  0.800  0.980  1.0
  O  O32  1  0.726  0.560  0.719  1.0
  O  O33  1  0.226  0.440  0.781  1.0
  O  O34  1  0.274  0.440  0.281  1.0
  O  O35  1  0.774  0.560  0.219  1.0
  O  O36  1  0.668  0.089  0.863  1.0
  O  O37  1  0.168  0.911  0.637  1.0
  O  O38  1  0.332  0.911  0.137  1.0
  O  O39  1  0.832  0.089  0.363  1.0
  O  O40  1  0.824  0.201  0.038  1.0
  O  O41  1  0.324  0.799  0.462  1.0
  O  O42  1  0.176  0.799  0.962  1.0
  O  O43  1  0.676  0.201  0.538  1.0
  O  O44  1  0.634  0.928  0.155  1.0
  O  O45  1  0.134  0.072  0.345  1.0
  O  O46  1  0.366  0.072  0.845  1.0
  O  O47  1  0.866  0.928  0.655  1.0
  O  O48  1  0.580  0.330  0.001  1.0
  O  O49  1  0.080  0.670  0.499  1.0
  O  O50  1  0.420  0.670  0.999  1.0
  O  O51  1  0.920  0.330  0.501  1.0
[/CIF]
.
The structure described by MnH2(SeO4)2 crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with three equivalent Se(1)O4 tetrahedra and corners with three equivalent Se(2)O4 tetrahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(1) and one O(8) atom. There are two inequivalent Se sites. In the first Se site, 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 43-52°. In the second Se site, Se(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form SeO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-46°. There are eight inequivalent O sites. In the first O site, O(4) is bonded in a water-like geometry to one H(1) and one Se(1) atom. In the second O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(1) and one Se(2) atom. In the third O site, O(6) is bonded in a bent 150 degrees geometry to one Mn(1) and one Se(2) atom. In the fourth O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one Se(2) atom. In the fifth O site, O(8) is bonded in a water-like geometry to one H(2) and one Se(2) atom. In the sixth O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one H(2), and one Se(1) atom. In the seventh O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Se(1) atom. In the eighth O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MnH2(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.719
_cell_length_b   7.012
_cell_length_c   10.026
_cell_angle_alpha   69.589
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   706.241
_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
  Mn  Mn0  1  0.529  0.130  0.699  1.0
  Mn  Mn1  1  0.029  0.870  0.801  1.0
  Mn  Mn2  1  0.471  0.870  0.301  1.0
  Mn  Mn3  1  0.971  0.130  0.199  1.0
  H  H4  1  0.781  0.678  0.713  1.0
  H  H5  1  0.281  0.322  0.787  1.0
  H  H6  1  0.219  0.322  0.287  1.0
  H  H7  1  0.719  0.678  0.213  1.0
  H  H8  1  0.544  0.308  0.098  1.0
  H  H9  1  0.044  0.692  0.402  1.0
  H  H10  1  0.456  0.692  0.902  1.0
  H  H11  1  0.956  0.308  0.598  1.0
  Se  Se12  1  0.580  0.656  0.648  1.0
  Se  Se13  1  0.080  0.344  0.852  1.0
  Se  Se14  1  0.420  0.344  0.352  1.0
  Se  Se15  1  0.920  0.656  0.148  1.0
  Se  Se16  1  0.682  0.128  0.015  1.0
  Se  Se17  1  0.182  0.872  0.485  1.0
  Se  Se18  1  0.318  0.872  0.985  1.0
  Se  Se19  1  0.818  0.128  0.515  1.0
  O  O20  1  0.526  0.796  0.742  1.0
  O  O21  1  0.026  0.204  0.758  1.0
  O  O22  1  0.474  0.204  0.258  1.0
  O  O23  1  0.974  0.796  0.242  1.0
  O  O24  1  0.495  0.450  0.677  1.0
  O  O25  1  0.995  0.550  0.823  1.0
  O  O26  1  0.505  0.550  0.323  1.0
  O  O27  1  0.005  0.450  0.177  1.0
  O  O28  1  0.602  0.800  0.480  1.0
  O  O29  1  0.102  0.200  0.020  1.0
  O  O30  1  0.398  0.200  0.520  1.0
  O  O31  1  0.898  0.800  0.980  1.0
  O  O32  1  0.726  0.560  0.719  1.0
  O  O33  1  0.226  0.440  0.781  1.0
  O  O34  1  0.274  0.440  0.281  1.0
  O  O35  1  0.774  0.560  0.219  1.0
  O  O36  1  0.668  0.089  0.863  1.0
  O  O37  1  0.168  0.911  0.637  1.0
  O  O38  1  0.332  0.911  0.137  1.0
  O  O39  1  0.832  0.089  0.363  1.0
  O  O40  1  0.824  0.201  0.038  1.0
  O  O41  1  0.324  0.799  0.462  1.0
  O  O42  1  0.176  0.799  0.962  1.0
  O  O43  1  0.676  0.201  0.538  1.0
  O  O44  1  0.634  0.928  0.155  1.0
  O  O45  1  0.134  0.072  0.345  1.0
  O  O46  1  0.366  0.072  0.845  1.0
  O  O47  1  0.866  0.928  0.655  1.0
  O  O48  1  0.580  0.330  0.001  1.0
  O  O49  1  0.080  0.670  0.499  1.0
  O  O50  1  0.420  0.670  0.999  1.0
  O  O51  1  0.920  0.330  0.501  1.0
[/CIF]
.