The crystal structure described by Fe2TeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 26-56°. In the second Fe site, Fe(2) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 26-56°. Te(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Fe(1), two equivalent Fe(2), and one Te(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Fe(1), one Fe(2), and one Te(1) atom. In the third O site, O(3) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form edge-sharing OFe4 trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and two equivalent Te(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one Fe(2), and one Te(1) atom. is represented by the CIF file [CIF]
data_Fe2TeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.042
_cell_length_b   7.777
_cell_length_c   10.954
_cell_angle_alpha   77.006
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   418.548
_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  0.048  0.185  0.908  1.0
  Fe  Fe1  1  0.952  0.815  0.092  1.0
  Fe  Fe2  1  0.548  0.815  0.592  1.0
  Fe  Fe3  1  0.428  0.030  0.131  1.0
  Fe  Fe4  1  0.572  0.970  0.869  1.0
  Fe  Fe5  1  0.072  0.030  0.631  1.0
  Fe  Fe6  1  0.452  0.185  0.408  1.0
  Fe  Fe7  1  0.928  0.970  0.369  1.0
  Te  Te8  1  0.061  0.644  0.833  1.0
  Te  Te9  1  0.939  0.356  0.167  1.0
  Te  Te10  1  0.561  0.356  0.667  1.0
  Te  Te11  1  0.439  0.644  0.333  1.0
  O  O12  1  0.873  0.100  0.767  1.0
  O  O13  1  0.703  0.741  0.434  1.0
  O  O14  1  0.250  0.949  0.485  1.0
  O  O15  1  0.203  0.259  0.066  1.0
  O  O16  1  0.880  0.424  0.840  1.0
  O  O17  1  0.380  0.576  0.660  1.0
  O  O18  1  0.750  0.051  0.015  1.0
  O  O19  1  0.120  0.576  0.160  1.0
  O  O20  1  0.127  0.900  0.233  1.0
  O  O21  1  0.601  0.769  0.182  1.0
  O  O22  1  0.250  0.949  0.985  1.0
  O  O23  1  0.797  0.741  0.934  1.0
  O  O24  1  0.899  0.769  0.682  1.0
  O  O25  1  0.101  0.231  0.318  1.0
  O  O26  1  0.620  0.424  0.340  1.0
  O  O27  1  0.373  0.900  0.733  1.0
  O  O28  1  0.297  0.259  0.566  1.0
  O  O29  1  0.750  0.051  0.515  1.0
  O  O30  1  0.399  0.231  0.818  1.0
  O  O31  1  0.627  0.100  0.267  1.0
[/CIF]
.
The crystal structure described by Fe2TeO5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 26-56°. In the second Fe site, Fe(2) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 26-56°. Te(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(5), and two equivalent O(4) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Fe(1), two equivalent Fe(2), and one Te(1) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Fe(1), one Fe(2), and one Te(1) atom. In the third O site, O(3) is bonded to two equivalent Fe(1) and two equivalent Fe(2) atoms to form edge-sharing OFe4 trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and two equivalent Te(1) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Fe(1), one Fe(2), and one Te(1) atom. is represented by the CIF file [CIF]
data_Fe2TeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.042
_cell_length_b   7.777
_cell_length_c   10.954
_cell_angle_alpha   77.006
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   418.548
_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  0.048  0.185  0.908  1.0
  Fe  Fe1  1  0.952  0.815  0.092  1.0
  Fe  Fe2  1  0.548  0.815  0.592  1.0
  Fe  Fe3  1  0.428  0.030  0.131  1.0
  Fe  Fe4  1  0.572  0.970  0.869  1.0
  Fe  Fe5  1  0.072  0.030  0.631  1.0
  Fe  Fe6  1  0.452  0.185  0.408  1.0
  Fe  Fe7  1  0.928  0.970  0.369  1.0
  Te  Te8  1  0.061  0.644  0.833  1.0
  Te  Te9  1  0.939  0.356  0.167  1.0
  Te  Te10  1  0.561  0.356  0.667  1.0
  Te  Te11  1  0.439  0.644  0.333  1.0
  O  O12  1  0.873  0.100  0.767  1.0
  O  O13  1  0.703  0.741  0.434  1.0
  O  O14  1  0.250  0.949  0.485  1.0
  O  O15  1  0.203  0.259  0.066  1.0
  O  O16  1  0.880  0.424  0.840  1.0
  O  O17  1  0.380  0.576  0.660  1.0
  O  O18  1  0.750  0.051  0.015  1.0
  O  O19  1  0.120  0.576  0.160  1.0
  O  O20  1  0.127  0.900  0.233  1.0
  O  O21  1  0.601  0.769  0.182  1.0
  O  O22  1  0.250  0.949  0.985  1.0
  O  O23  1  0.797  0.741  0.934  1.0
  O  O24  1  0.899  0.769  0.682  1.0
  O  O25  1  0.101  0.231  0.318  1.0
  O  O26  1  0.620  0.424  0.340  1.0
  O  O27  1  0.373  0.900  0.733  1.0
  O  O28  1  0.297  0.259  0.566  1.0
  O  O29  1  0.750  0.051  0.515  1.0
  O  O30  1  0.399  0.231  0.818  1.0
  O  O31  1  0.627  0.100  0.267  1.0
[/CIF]
.