The compound described by Fe(SeO3)3 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Se(1)O4 tetrahedra. There are three 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(6) atom to form SeO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-57°. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(2) atom. In the second O site, O(6) is bonded in a bent 120 degrees geometry to one Se(1) and one Se(2) atom. In the third O site, O(7) is bonded in a bent 150 degrees geometry to one Fe(1) and one Se(3) atom. In the fourth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one Se(3) atom. In the fifth O site, O(1) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(1) atom. In the sixth O site, O(9) is bonded in a single-bond geometry to one Se(3) atom. In the seventh O site, O(2) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(1) atom. In the eighth O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the ninth O site, O(4) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.201
_cell_length_b   8.124
_cell_length_c   11.199
_cell_angle_alpha   49.230
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   840.703
_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
  Fe  Fe0  1  0.197  0.450  0.781  1.0
  Fe  Fe1  1  0.697  0.550  0.719  1.0
  Fe  Fe2  1  0.803  0.550  0.219  1.0
  Fe  Fe3  1  0.303  0.450  0.281  1.0
  Se  Se4  1  0.357  0.281  0.635  1.0
  Se  Se5  1  0.857  0.719  0.865  1.0
  Se  Se6  1  0.643  0.719  0.365  1.0
  Se  Se7  1  0.143  0.281  0.135  1.0
  Se  Se8  1  0.177  0.917  0.109  1.0
  Se  Se9  1  0.677  0.083  0.391  1.0
  Se  Se10  1  0.823  0.083  0.891  1.0
  Se  Se11  1  0.323  0.917  0.609  1.0
  Se  Se12  1  0.040  0.303  0.458  1.0
  Se  Se13  1  0.540  0.697  0.042  1.0
  Se  Se14  1  0.960  0.697  0.542  1.0
  Se  Se15  1  0.460  0.303  0.958  1.0
  O  O16  1  0.271  0.461  0.612  1.0
  O  O17  1  0.771  0.539  0.888  1.0
  O  O18  1  0.729  0.539  0.388  1.0
  O  O19  1  0.229  0.461  0.112  1.0
  O  O20  1  0.404  0.393  0.455  1.0
  O  O21  1  0.904  0.607  0.045  1.0
  O  O22  1  0.596  0.607  0.545  1.0
  O  O23  1  0.096  0.393  0.955  1.0
  O  O24  1  0.454  0.194  0.765  1.0
  O  O25  1  0.954  0.806  0.735  1.0
  O  O26  1  0.546  0.806  0.235  1.0
  O  O27  1  0.046  0.194  0.265  1.0
  O  O28  1  0.294  0.775  0.156  1.0
  O  O29  1  0.794  0.225  0.344  1.0
  O  O30  1  0.706  0.225  0.844  1.0
  O  O31  1  0.206  0.775  0.656  1.0
  O  O32  1  0.197  0.125  0.914  1.0
  O  O33  1  0.697  0.875  0.586  1.0
  O  O34  1  0.803  0.875  0.086  1.0
  O  O35  1  0.303  0.125  0.414  1.0
  O  O36  1  0.221  0.052  0.193  1.0
  O  O37  1  0.721  0.948  0.307  1.0
  O  O38  1  0.779  0.948  0.807  1.0
  O  O39  1  0.279  0.052  0.693  1.0
  O  O40  1  0.160  0.447  0.370  1.0
  O  O41  1  0.660  0.553  0.130  1.0
  O  O42  1  0.840  0.553  0.630  1.0
  O  O43  1  0.340  0.447  0.870  1.0
  O  O44  1  0.944  0.503  0.337  1.0
  O  O45  1  0.444  0.497  0.163  1.0
  O  O46  1  0.056  0.497  0.663  1.0
  O  O47  1  0.556  0.503  0.837  1.0
  O  O48  1  0.034  0.244  0.632  1.0
  O  O49  1  0.534  0.756  0.868  1.0
  O  O50  1  0.966  0.756  0.368  1.0
  O  O51  1  0.466  0.244  0.132  1.0
[/CIF]
.
The compound described by Fe(SeO3)3 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Se(1)O4 tetrahedra. There are three 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(6) atom to form SeO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-57°. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(2) atom. In the second O site, O(6) is bonded in a bent 120 degrees geometry to one Se(1) and one Se(2) atom. In the third O site, O(7) is bonded in a bent 150 degrees geometry to one Fe(1) and one Se(3) atom. In the fourth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one Se(3) atom. In the fifth O site, O(1) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(1) atom. In the sixth O site, O(9) is bonded in a single-bond geometry to one Se(3) atom. In the seventh O site, O(2) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(1) atom. In the eighth O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the ninth O site, O(4) is bonded in a bent 120 degrees geometry to one Fe(1) and one Se(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.201
_cell_length_b   8.124
_cell_length_c   11.199
_cell_angle_alpha   49.230
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   840.703
_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
  Fe  Fe0  1  0.197  0.450  0.781  1.0
  Fe  Fe1  1  0.697  0.550  0.719  1.0
  Fe  Fe2  1  0.803  0.550  0.219  1.0
  Fe  Fe3  1  0.303  0.450  0.281  1.0
  Se  Se4  1  0.357  0.281  0.635  1.0
  Se  Se5  1  0.857  0.719  0.865  1.0
  Se  Se6  1  0.643  0.719  0.365  1.0
  Se  Se7  1  0.143  0.281  0.135  1.0
  Se  Se8  1  0.177  0.917  0.109  1.0
  Se  Se9  1  0.677  0.083  0.391  1.0
  Se  Se10  1  0.823  0.083  0.891  1.0
  Se  Se11  1  0.323  0.917  0.609  1.0
  Se  Se12  1  0.040  0.303  0.458  1.0
  Se  Se13  1  0.540  0.697  0.042  1.0
  Se  Se14  1  0.960  0.697  0.542  1.0
  Se  Se15  1  0.460  0.303  0.958  1.0
  O  O16  1  0.271  0.461  0.612  1.0
  O  O17  1  0.771  0.539  0.888  1.0
  O  O18  1  0.729  0.539  0.388  1.0
  O  O19  1  0.229  0.461  0.112  1.0
  O  O20  1  0.404  0.393  0.455  1.0
  O  O21  1  0.904  0.607  0.045  1.0
  O  O22  1  0.596  0.607  0.545  1.0
  O  O23  1  0.096  0.393  0.955  1.0
  O  O24  1  0.454  0.194  0.765  1.0
  O  O25  1  0.954  0.806  0.735  1.0
  O  O26  1  0.546  0.806  0.235  1.0
  O  O27  1  0.046  0.194  0.265  1.0
  O  O28  1  0.294  0.775  0.156  1.0
  O  O29  1  0.794  0.225  0.344  1.0
  O  O30  1  0.706  0.225  0.844  1.0
  O  O31  1  0.206  0.775  0.656  1.0
  O  O32  1  0.197  0.125  0.914  1.0
  O  O33  1  0.697  0.875  0.586  1.0
  O  O34  1  0.803  0.875  0.086  1.0
  O  O35  1  0.303  0.125  0.414  1.0
  O  O36  1  0.221  0.052  0.193  1.0
  O  O37  1  0.721  0.948  0.307  1.0
  O  O38  1  0.779  0.948  0.807  1.0
  O  O39  1  0.279  0.052  0.693  1.0
  O  O40  1  0.160  0.447  0.370  1.0
  O  O41  1  0.660  0.553  0.130  1.0
  O  O42  1  0.840  0.553  0.630  1.0
  O  O43  1  0.340  0.447  0.870  1.0
  O  O44  1  0.944  0.503  0.337  1.0
  O  O45  1  0.444  0.497  0.163  1.0
  O  O46  1  0.056  0.497  0.663  1.0
  O  O47  1  0.556  0.503  0.837  1.0
  O  O48  1  0.034  0.244  0.632  1.0
  O  O49  1  0.534  0.756  0.868  1.0
  O  O50  1  0.966  0.756  0.368  1.0
  O  O51  1  0.466  0.244  0.132  1.0
[/CIF]
.