The compound described by FeGeO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Ge(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra and edges with three equivalent Fe(1)O6 octahedra. Ge(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form GeO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-62°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(1), and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Ge(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_FeGeO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.687
_cell_length_b   6.687
_cell_length_c   5.175
_cell_angle_alpha   81.476
_cell_angle_beta   81.476
_cell_angle_gamma   84.794
_symmetry_Int_Tables_number   1
_cell_volume   225.784
_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  0.914  0.086  0.250  1.0
  Fe  Fe1  1  0.086  0.914  0.750  1.0
  Fe  Fe2  1  0.265  0.735  0.250  1.0
  Fe  Fe3  1  0.735  0.265  0.750  1.0
  Ge  Ge4  1  0.791  0.603  0.213  1.0
  Ge  Ge5  1  0.397  0.209  0.287  1.0
  Ge  Ge6  1  0.209  0.397  0.787  1.0
  Ge  Ge7  1  0.603  0.791  0.713  1.0
  O  O8  1  0.967  0.789  0.137  1.0
  O  O9  1  0.211  0.033  0.363  1.0
  O  O10  1  0.033  0.211  0.863  1.0
  O  O11  1  0.789  0.967  0.637  1.0
  O  O12  1  0.859  0.370  0.382  1.0
  O  O13  1  0.630  0.141  0.118  1.0
  O  O14  1  0.141  0.630  0.618  1.0
  O  O15  1  0.370  0.859  0.882  1.0
  O  O16  1  0.708  0.571  0.908  1.0
  O  O17  1  0.429  0.292  0.592  1.0
  O  O18  1  0.292  0.429  0.092  1.0
  O  O19  1  0.571  0.708  0.408  1.0
[/CIF]
.
The compound described by FeGeO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Ge(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and edges with three equivalent Fe(2)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share corners with eight equivalent Ge(1)O4 tetrahedra and edges with three equivalent Fe(1)O6 octahedra. Ge(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form GeO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra, and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-62°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(1), and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Ge(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_FeGeO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.687
_cell_length_b   6.687
_cell_length_c   5.175
_cell_angle_alpha   81.476
_cell_angle_beta   81.476
_cell_angle_gamma   84.794
_symmetry_Int_Tables_number   1
_cell_volume   225.784
_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  0.914  0.086  0.250  1.0
  Fe  Fe1  1  0.086  0.914  0.750  1.0
  Fe  Fe2  1  0.265  0.735  0.250  1.0
  Fe  Fe3  1  0.735  0.265  0.750  1.0
  Ge  Ge4  1  0.791  0.603  0.213  1.0
  Ge  Ge5  1  0.397  0.209  0.287  1.0
  Ge  Ge6  1  0.209  0.397  0.787  1.0
  Ge  Ge7  1  0.603  0.791  0.713  1.0
  O  O8  1  0.967  0.789  0.137  1.0
  O  O9  1  0.211  0.033  0.363  1.0
  O  O10  1  0.033  0.211  0.863  1.0
  O  O11  1  0.789  0.967  0.637  1.0
  O  O12  1  0.859  0.370  0.382  1.0
  O  O13  1  0.630  0.141  0.118  1.0
  O  O14  1  0.141  0.630  0.618  1.0
  O  O15  1  0.370  0.859  0.882  1.0
  O  O16  1  0.708  0.571  0.908  1.0
  O  O17  1  0.429  0.292  0.592  1.0
  O  O18  1  0.292  0.429  0.092  1.0
  O  O19  1  0.571  0.708  0.408  1.0
[/CIF]
.