The material structure described by CaTe2O5 crystallizes in the monoclinic P2_1/c space group. Ca(1) is bonded to one O(3), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form distorted edge-sharing CaO7 pentagonal bipyramids. 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(2), one O(3), one O(4), and one O(5) atom. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent Te(2) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Ca(1), one Te(1), and one Te(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ca(1), one Te(1), and one Te(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to two equivalent Ca(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to two equivalent Ca(1) and one Te(1) atom. is represented by the CIF card [CIF]
data_CaTe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.717
_cell_length_b   9.434
_cell_length_c   11.100
_cell_angle_alpha   65.179
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   543.368
_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
  Ca  Ca0  1  0.201  0.021  0.361  1.0
  Ca  Ca1  1  0.701  0.979  0.139  1.0
  Ca  Ca2  1  0.799  0.979  0.639  1.0
  Ca  Ca3  1  0.299  0.021  0.861  1.0
  Te  Te4  1  0.821  0.263  0.778  1.0
  Te  Te5  1  0.321  0.737  0.722  1.0
  Te  Te6  1  0.179  0.737  0.222  1.0
  Te  Te7  1  0.679  0.263  0.278  1.0
  Te  Te8  1  0.355  0.349  0.511  1.0
  Te  Te9  1  0.855  0.651  0.989  1.0
  Te  Te10  1  0.645  0.651  0.489  1.0
  Te  Te11  1  0.145  0.349  0.011  1.0
  O  O12  1  0.894  0.478  0.909  1.0
  O  O13  1  0.394  0.522  0.591  1.0
  O  O14  1  0.106  0.522  0.091  1.0
  O  O15  1  0.606  0.478  0.409  1.0
  O  O16  1  0.524  0.204  0.654  1.0
  O  O17  1  0.024  0.796  0.846  1.0
  O  O18  1  0.476  0.796  0.346  1.0
  O  O19  1  0.976  0.204  0.154  1.0
  O  O20  1  0.090  0.226  0.902  1.0
  O  O21  1  0.590  0.774  0.598  1.0
  O  O22  1  0.910  0.774  0.098  1.0
  O  O23  1  0.410  0.226  0.402  1.0
  O  O24  1  0.508  0.142  0.214  1.0
  O  O25  1  0.008  0.858  0.286  1.0
  O  O26  1  0.492  0.858  0.786  1.0
  O  O27  1  0.992  0.142  0.714  1.0
  O  O28  1  0.855  0.118  0.413  1.0
  O  O29  1  0.355  0.882  0.087  1.0
  O  O30  1  0.145  0.882  0.587  1.0
  O  O31  1  0.645  0.118  0.913  1.0
[/CIF]
.
The material structure described by CaTe2O5 crystallizes in the monoclinic P2_1/c space group. Ca(1) is bonded to one O(3), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form distorted edge-sharing CaO7 pentagonal bipyramids. 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(2), one O(3), one O(4), and one O(5) atom. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to two equivalent Te(2) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Ca(1), one Te(1), and one Te(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ca(1), one Te(1), and one Te(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to two equivalent Ca(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to two equivalent Ca(1) and one Te(1) atom. is represented by the CIF card [CIF]
data_CaTe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.717
_cell_length_b   9.434
_cell_length_c   11.100
_cell_angle_alpha   65.179
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   543.368
_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
  Ca  Ca0  1  0.201  0.021  0.361  1.0
  Ca  Ca1  1  0.701  0.979  0.139  1.0
  Ca  Ca2  1  0.799  0.979  0.639  1.0
  Ca  Ca3  1  0.299  0.021  0.861  1.0
  Te  Te4  1  0.821  0.263  0.778  1.0
  Te  Te5  1  0.321  0.737  0.722  1.0
  Te  Te6  1  0.179  0.737  0.222  1.0
  Te  Te7  1  0.679  0.263  0.278  1.0
  Te  Te8  1  0.355  0.349  0.511  1.0
  Te  Te9  1  0.855  0.651  0.989  1.0
  Te  Te10  1  0.645  0.651  0.489  1.0
  Te  Te11  1  0.145  0.349  0.011  1.0
  O  O12  1  0.894  0.478  0.909  1.0
  O  O13  1  0.394  0.522  0.591  1.0
  O  O14  1  0.106  0.522  0.091  1.0
  O  O15  1  0.606  0.478  0.409  1.0
  O  O16  1  0.524  0.204  0.654  1.0
  O  O17  1  0.024  0.796  0.846  1.0
  O  O18  1  0.476  0.796  0.346  1.0
  O  O19  1  0.976  0.204  0.154  1.0
  O  O20  1  0.090  0.226  0.902  1.0
  O  O21  1  0.590  0.774  0.598  1.0
  O  O22  1  0.910  0.774  0.098  1.0
  O  O23  1  0.410  0.226  0.402  1.0
  O  O24  1  0.508  0.142  0.214  1.0
  O  O25  1  0.008  0.858  0.286  1.0
  O  O26  1  0.492  0.858  0.786  1.0
  O  O27  1  0.992  0.142  0.714  1.0
  O  O28  1  0.855  0.118  0.413  1.0
  O  O29  1  0.355  0.882  0.087  1.0
  O  O30  1  0.145  0.882  0.587  1.0
  O  O31  1  0.645  0.118  0.913  1.0
[/CIF]
.