The material structure described by Tb2Te4O11 crystallizes in the monoclinic C2/c space group. Tb(1) is bonded in a 8-coordinate geometry to one O(2), one O(5), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Te site, Te(2) is bonded in a 3-coordinate geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Tb(1) and one Te(2) atom. In the second O site, O(5) is bonded in a 3-coordinate geometry to one Tb(1), one Te(1), and one Te(2) atom. In the third O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Tb(1) and one Te(2) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Te(1) atoms. In the fifth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one Te(1) atom. In the sixth O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Tb(1), one Te(1), and one Te(2) atom. is represented by the CIF file [CIF]
data_Tb2Te4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   16.120
_cell_angle_alpha   75.489
_cell_angle_beta   75.489
_cell_angle_gamma   44.937
_symmetry_Int_Tables_number   1
_cell_volume   493.317
_cell_formula_units_Z   2
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
  Tb  Tb0  1  0.133  0.630  0.537  1.0
  Tb  Tb1  1  0.370  0.867  0.963  1.0
  Tb  Tb2  1  0.867  0.370  0.463  1.0
  Tb  Tb3  1  0.630  0.133  0.037  1.0
  Te  Te4  1  0.600  0.157  0.699  1.0
  Te  Te5  1  0.843  0.400  0.801  1.0
  Te  Te6  1  0.400  0.843  0.301  1.0
  Te  Te7  1  0.157  0.600  0.199  1.0
  Te  Te8  1  0.153  0.591  0.873  1.0
  Te  Te9  1  0.409  0.847  0.627  1.0
  Te  Te10  1  0.847  0.409  0.127  1.0
  Te  Te11  1  0.591  0.153  0.373  1.0
  O  O12  1  0.850  0.150  0.750  1.0
  O  O13  1  0.150  0.850  0.250  1.0
  O  O14  1  0.203  0.091  0.832  1.0
  O  O15  1  0.909  0.797  0.668  1.0
  O  O16  1  0.797  0.909  0.168  1.0
  O  O17  1  0.091  0.203  0.332  1.0
  O  O18  1  0.608  0.440  0.903  1.0
  O  O19  1  0.560  0.392  0.597  1.0
  O  O20  1  0.392  0.560  0.097  1.0
  O  O21  1  0.440  0.608  0.403  1.0
  O  O22  1  0.040  0.818  0.955  1.0
  O  O23  1  0.182  0.960  0.545  1.0
  O  O24  1  0.682  0.812  0.373  1.0
  O  O25  1  0.188  0.318  0.127  1.0
  O  O26  1  0.318  0.188  0.627  1.0
  O  O27  1  0.812  0.682  0.873  1.0
  O  O28  1  0.249  0.335  0.446  1.0
  O  O29  1  0.665  0.751  0.054  1.0
  O  O30  1  0.751  0.665  0.554  1.0
  O  O31  1  0.335  0.249  0.946  1.0
  O  O32  1  0.818  0.040  0.455  1.0
  O  O33  1  0.960  0.182  0.045  1.0
[/CIF]
.
The material structure described by Tb2Te4O11 crystallizes in the monoclinic C2/c space group. Tb(1) is bonded in a 8-coordinate geometry to one O(2), one O(5), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Te site, Te(2) is bonded in a 3-coordinate geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Tb(1) and one Te(2) atom. In the second O site, O(5) is bonded in a 3-coordinate geometry to one Tb(1), one Te(1), and one Te(2) atom. In the third O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Tb(1) and one Te(2) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Te(1) atoms. In the fifth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one Te(1) atom. In the sixth O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Tb(1), one Te(1), and one Te(2) atom. is represented by the CIF file [CIF]
data_Tb2Te4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.709
_cell_length_b   6.709
_cell_length_c   16.120
_cell_angle_alpha   75.489
_cell_angle_beta   75.489
_cell_angle_gamma   44.937
_symmetry_Int_Tables_number   1
_cell_volume   493.317
_cell_formula_units_Z   2
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
  Tb  Tb0  1  0.133  0.630  0.537  1.0
  Tb  Tb1  1  0.370  0.867  0.963  1.0
  Tb  Tb2  1  0.867  0.370  0.463  1.0
  Tb  Tb3  1  0.630  0.133  0.037  1.0
  Te  Te4  1  0.600  0.157  0.699  1.0
  Te  Te5  1  0.843  0.400  0.801  1.0
  Te  Te6  1  0.400  0.843  0.301  1.0
  Te  Te7  1  0.157  0.600  0.199  1.0
  Te  Te8  1  0.153  0.591  0.873  1.0
  Te  Te9  1  0.409  0.847  0.627  1.0
  Te  Te10  1  0.847  0.409  0.127  1.0
  Te  Te11  1  0.591  0.153  0.373  1.0
  O  O12  1  0.850  0.150  0.750  1.0
  O  O13  1  0.150  0.850  0.250  1.0
  O  O14  1  0.203  0.091  0.832  1.0
  O  O15  1  0.909  0.797  0.668  1.0
  O  O16  1  0.797  0.909  0.168  1.0
  O  O17  1  0.091  0.203  0.332  1.0
  O  O18  1  0.608  0.440  0.903  1.0
  O  O19  1  0.560  0.392  0.597  1.0
  O  O20  1  0.392  0.560  0.097  1.0
  O  O21  1  0.440  0.608  0.403  1.0
  O  O22  1  0.040  0.818  0.955  1.0
  O  O23  1  0.182  0.960  0.545  1.0
  O  O24  1  0.682  0.812  0.373  1.0
  O  O25  1  0.188  0.318  0.127  1.0
  O  O26  1  0.318  0.188  0.627  1.0
  O  O27  1  0.812  0.682  0.873  1.0
  O  O28  1  0.249  0.335  0.446  1.0
  O  O29  1  0.665  0.751  0.054  1.0
  O  O30  1  0.751  0.665  0.554  1.0
  O  O31  1  0.335  0.249  0.946  1.0
  O  O32  1  0.818  0.040  0.455  1.0
  O  O33  1  0.960  0.182  0.045  1.0
[/CIF]
.