The material structure described by La2Fe(SeO)2 crystallizes in the monoclinic C2/m space group. La(1) is bonded in a 3-coordinate geometry to five equivalent Se(1) and three equivalent O(1) atoms. Fe(1) is bonded in a distorted linear geometry to four equivalent Se(1) and two equivalent O(1) atoms. Se(1) is bonded in a 7-coordinate geometry to five equivalent La(1) and two equivalent Fe(1) atoms. O(1) is bonded to three equivalent La(1) and one Fe(1) atom to form a mixture of edge and corner-sharing OLa3Fe tetrahedra. is represented by the CIF file [CIF]
data_La2Fe(SeO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.975
_cell_length_b   6.015
_cell_length_c   6.726
_cell_angle_alpha   68.436
_cell_angle_beta   72.812
_cell_angle_gamma   70.705
_symmetry_Int_Tables_number   1
_cell_volume   138.376
_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
  La  La0  1  0.807  0.642  0.744  1.0
  La  La1  1  0.193  0.358  0.256  1.0
  Fe  Fe2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.557  0.200  0.686  1.0
  Se  Se4  1  0.443  0.800  0.314  1.0
  O  O5  1  0.192  0.695  0.920  1.0
  O  O6  1  0.808  0.305  0.080  1.0
[/CIF]
.
The material structure described by La2Fe(SeO)2 crystallizes in the monoclinic C2/m space group. La(1) is bonded in a 3-coordinate geometry to five equivalent Se(1) and three equivalent O(1) atoms. Fe(1) is bonded in a distorted linear geometry to four equivalent Se(1) and two equivalent O(1) atoms. Se(1) is bonded in a 7-coordinate geometry to five equivalent La(1) and two equivalent Fe(1) atoms. O(1) is bonded to three equivalent La(1) and one Fe(1) atom to form a mixture of edge and corner-sharing OLa3Fe tetrahedra. is represented by the CIF file [CIF]
data_La2Fe(SeO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.975
_cell_length_b   6.015
_cell_length_c   6.726
_cell_angle_alpha   68.436
_cell_angle_beta   72.812
_cell_angle_gamma   70.705
_symmetry_Int_Tables_number   1
_cell_volume   138.376
_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
  La  La0  1  0.807  0.642  0.744  1.0
  La  La1  1  0.193  0.358  0.256  1.0
  Fe  Fe2  1  0.000  0.000  0.000  1.0
  Se  Se3  1  0.557  0.200  0.686  1.0
  Se  Se4  1  0.443  0.800  0.314  1.0
  O  O5  1  0.192  0.695  0.920  1.0
  O  O6  1  0.808  0.305  0.080  1.0
[/CIF]
.