The compound described by Cs2Al(TeO4)3 crystallizes in the trigonal R-3m space group. Cs(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted CsO6 octahedra that share corners with three equivalent Al(1)O6 octahedra and corners with nine equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 66-72°. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Cs(1)O6 octahedra and corners with six equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-66°. Te(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TeO6 octahedra that share corners with two equivalent Al(1)O6 octahedra, corners with four equivalent Te(1)O6 octahedra, and corners with six equivalent Cs(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-72°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Al(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1) and two equivalent Te(1) atoms. is represented by the CIF file [CIF]
data_Cs2Al(TeO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.127
_cell_length_b   7.127
_cell_length_c   7.127
_cell_angle_alpha   61.729
_cell_angle_beta   61.729
_cell_angle_gamma   61.729
_symmetry_Int_Tables_number   1
_cell_volume   265.853
_cell_formula_units_Z   1
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
  Cs  Cs0  1  0.128  0.128  0.128  1.0
  Cs  Cs1  1  0.872  0.872  0.872  1.0
  Al  Al2  1  0.500  0.500  0.500  1.0
  Te  Te3  1  0.000  0.500  0.500  1.0
  Te  Te4  1  0.500  0.500  0.000  1.0
  Te  Te5  1  0.500  0.000  0.500  1.0
  O  O6  1  0.434  0.814  0.434  1.0
  O  O7  1  0.826  0.432  0.826  1.0
  O  O8  1  0.432  0.826  0.826  1.0
  O  O9  1  0.814  0.434  0.434  1.0
  O  O10  1  0.826  0.826  0.432  1.0
  O  O11  1  0.434  0.434  0.814  1.0
  O  O12  1  0.566  0.186  0.566  1.0
  O  O13  1  0.174  0.568  0.174  1.0
  O  O14  1  0.568  0.174  0.174  1.0
  O  O15  1  0.186  0.566  0.566  1.0
  O  O16  1  0.174  0.174  0.568  1.0
  O  O17  1  0.566  0.566  0.186  1.0
[/CIF]
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The compound described by Cs2Al(TeO4)3 crystallizes in the trigonal R-3m space group. Cs(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted CsO6 octahedra that share corners with three equivalent Al(1)O6 octahedra and corners with nine equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 66-72°. Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Cs(1)O6 octahedra and corners with six equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-66°. Te(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TeO6 octahedra that share corners with two equivalent Al(1)O6 octahedra, corners with four equivalent Te(1)O6 octahedra, and corners with six equivalent Cs(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-72°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cs(1), one Al(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Cs(1) and two equivalent Te(1) atoms. is represented by the CIF file [CIF]
data_Cs2Al(TeO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.127
_cell_length_b   7.127
_cell_length_c   7.127
_cell_angle_alpha   61.729
_cell_angle_beta   61.729
_cell_angle_gamma   61.729
_symmetry_Int_Tables_number   1
_cell_volume   265.853
_cell_formula_units_Z   1
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
  Cs  Cs0  1  0.128  0.128  0.128  1.0
  Cs  Cs1  1  0.872  0.872  0.872  1.0
  Al  Al2  1  0.500  0.500  0.500  1.0
  Te  Te3  1  0.000  0.500  0.500  1.0
  Te  Te4  1  0.500  0.500  0.000  1.0
  Te  Te5  1  0.500  0.000  0.500  1.0
  O  O6  1  0.434  0.814  0.434  1.0
  O  O7  1  0.826  0.432  0.826  1.0
  O  O8  1  0.432  0.826  0.826  1.0
  O  O9  1  0.814  0.434  0.434  1.0
  O  O10  1  0.826  0.826  0.432  1.0
  O  O11  1  0.434  0.434  0.814  1.0
  O  O12  1  0.566  0.186  0.566  1.0
  O  O13  1  0.174  0.568  0.174  1.0
  O  O14  1  0.568  0.174  0.174  1.0
  O  O15  1  0.186  0.566  0.566  1.0
  O  O16  1  0.174  0.174  0.568  1.0
  O  O17  1  0.566  0.566  0.186  1.0
[/CIF]
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