The material structure described by Fe(GeO3)2 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted FeO6 octahedra that share corners with three equivalent Ge(1)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form GeO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-58°. In the second Ge site, Ge(2) is bonded to one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids,  an edgeedge with one Fe(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 30-43°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a trigonal non-coplanar geometry to two equivalent Fe(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(2) atoms. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the fourth O site, O(3) is bonded in a distorted T-shaped geometry to one Fe(1) and two equivalent Ge(2) atoms. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one Ge(1) atom. In the sixth O site, O(5) is bonded in a trigonal planar geometry to two equivalent Fe(1) and one Ge(1) atom. is represented by the CIF file [CIF]
data_Fe(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.846
_cell_length_b   5.427
_cell_length_c   10.279
_cell_angle_alpha   75.713
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   478.215
_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  0.657  0.029  0.231  1.0
  Fe  Fe1  1  0.157  0.471  0.769  1.0
  Fe  Fe2  1  0.343  0.971  0.769  1.0
  Fe  Fe3  1  0.843  0.529  0.231  1.0
  Ge  Ge4  1  0.337  0.158  0.055  1.0
  Ge  Ge5  1  0.837  0.342  0.945  1.0
  Ge  Ge6  1  0.663  0.842  0.945  1.0
  Ge  Ge7  1  0.163  0.658  0.055  1.0
  Ge  Ge8  1  0.348  0.869  0.487  1.0
  Ge  Ge9  1  0.848  0.631  0.513  1.0
  Ge  Ge10  1  0.652  0.131  0.513  1.0
  Ge  Ge11  1  0.152  0.369  0.487  1.0
  O  O12  1  0.293  0.601  0.423  1.0
  O  O13  1  0.793  0.899  0.577  1.0
  O  O14  1  0.707  0.399  0.577  1.0
  O  O15  1  0.207  0.101  0.423  1.0
  O  O16  1  0.294  0.836  0.121  1.0
  O  O17  1  0.794  0.664  0.879  1.0
  O  O18  1  0.706  0.164  0.879  1.0
  O  O19  1  0.206  0.336  0.121  1.0
  O  O20  1  0.967  0.421  0.403  1.0
  O  O21  1  0.467  0.079  0.597  1.0
  O  O22  1  0.033  0.579  0.597  1.0
  O  O23  1  0.533  0.921  0.403  1.0
  O  O24  1  0.983  0.716  0.112  1.0
  O  O25  1  0.483  0.784  0.888  1.0
  O  O26  1  0.017  0.284  0.888  1.0
  O  O27  1  0.517  0.216  0.112  1.0
  O  O28  1  0.325  0.230  0.875  1.0
  O  O29  1  0.825  0.270  0.125  1.0
  O  O30  1  0.675  0.770  0.125  1.0
  O  O31  1  0.175  0.730  0.875  1.0
  O  O32  1  0.309  0.709  0.667  1.0
  O  O33  1  0.809  0.791  0.333  1.0
  O  O34  1  0.691  0.291  0.333  1.0
  O  O35  1  0.191  0.209  0.667  1.0
[/CIF]
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The material structure described by Fe(GeO3)2 crystallizes in the monoclinic P2_1/c space group. Fe(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted FeO6 octahedra that share corners with three equivalent Ge(1)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form GeO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-58°. In the second Ge site, Ge(2) is bonded to one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Fe(1)O6 octahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids,  an edgeedge with one Fe(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 30-43°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a trigonal non-coplanar geometry to two equivalent Fe(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(2) atoms. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the fourth O site, O(3) is bonded in a distorted T-shaped geometry to one Fe(1) and two equivalent Ge(2) atoms. In the fifth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one Ge(1) atom. In the sixth O site, O(5) is bonded in a trigonal planar geometry to two equivalent Fe(1) and one Ge(1) atom. is represented by the CIF file [CIF]
data_Fe(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.846
_cell_length_b   5.427
_cell_length_c   10.279
_cell_angle_alpha   75.713
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   478.215
_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  0.657  0.029  0.231  1.0
  Fe  Fe1  1  0.157  0.471  0.769  1.0
  Fe  Fe2  1  0.343  0.971  0.769  1.0
  Fe  Fe3  1  0.843  0.529  0.231  1.0
  Ge  Ge4  1  0.337  0.158  0.055  1.0
  Ge  Ge5  1  0.837  0.342  0.945  1.0
  Ge  Ge6  1  0.663  0.842  0.945  1.0
  Ge  Ge7  1  0.163  0.658  0.055  1.0
  Ge  Ge8  1  0.348  0.869  0.487  1.0
  Ge  Ge9  1  0.848  0.631  0.513  1.0
  Ge  Ge10  1  0.652  0.131  0.513  1.0
  Ge  Ge11  1  0.152  0.369  0.487  1.0
  O  O12  1  0.293  0.601  0.423  1.0
  O  O13  1  0.793  0.899  0.577  1.0
  O  O14  1  0.707  0.399  0.577  1.0
  O  O15  1  0.207  0.101  0.423  1.0
  O  O16  1  0.294  0.836  0.121  1.0
  O  O17  1  0.794  0.664  0.879  1.0
  O  O18  1  0.706  0.164  0.879  1.0
  O  O19  1  0.206  0.336  0.121  1.0
  O  O20  1  0.967  0.421  0.403  1.0
  O  O21  1  0.467  0.079  0.597  1.0
  O  O22  1  0.033  0.579  0.597  1.0
  O  O23  1  0.533  0.921  0.403  1.0
  O  O24  1  0.983  0.716  0.112  1.0
  O  O25  1  0.483  0.784  0.888  1.0
  O  O26  1  0.017  0.284  0.888  1.0
  O  O27  1  0.517  0.216  0.112  1.0
  O  O28  1  0.325  0.230  0.875  1.0
  O  O29  1  0.825  0.270  0.125  1.0
  O  O30  1  0.675  0.770  0.125  1.0
  O  O31  1  0.175  0.730  0.875  1.0
  O  O32  1  0.309  0.709  0.667  1.0
  O  O33  1  0.809  0.791  0.333  1.0
  O  O34  1  0.691  0.291  0.333  1.0
  O  O35  1  0.191  0.209  0.667  1.0
[/CIF]
.