The material structure described by Rb6Te2O9 crystallizes in the monoclinic C2/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 8-coordinate geometry to two equivalent O(4), three equivalent O(1), and three equivalent O(3) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(5), two equivalent O(2), and two equivalent O(4) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal bipyramidal geometry to one O(5), two equivalent O(3), and two equivalent O(4) atoms. In the second Te site, Te(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(3), three equivalent Rb(1), and one Te(2) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Te(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(3), three equivalent Rb(1), and one Te(1) atom. In the fourth O site, O(4) is bonded to one Rb(3), two equivalent Rb(1), two equivalent Rb(2), and one Te(1) atom to form a mixture of distorted edge and corner-sharing ORb5Te octahedra. The corner-sharing octahedral tilt angles are 2°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Te(1) atom. is represented by the CIF card [CIF]
data_Rb6Te2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.746
_cell_length_b   8.746
_cell_length_c   11.027
_cell_angle_alpha   67.860
_cell_angle_beta   67.860
_cell_angle_gamma   92.851
_symmetry_Int_Tables_number   1
_cell_volume   705.460
_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
  Rb  Rb0  1  0.498  0.698  0.025  1.0
  Rb  Rb1  1  0.302  0.502  0.475  1.0
  Rb  Rb2  1  0.502  0.302  0.975  1.0
  Rb  Rb3  1  0.698  0.498  0.525  1.0
  Rb  Rb4  1  1.000  0.705  0.029  1.0
  Rb  Rb5  1  0.295  0.000  0.471  1.0
  Rb  Rb6  1  0.000  0.295  0.971  1.0
  Rb  Rb7  1  0.705  1.000  0.529  1.0
  Rb  Rb8  1  0.096  0.320  0.263  1.0
  Rb  Rb9  1  0.680  0.904  0.237  1.0
  Rb  Rb10  1  0.904  0.680  0.737  1.0
  Rb  Rb11  1  0.320  0.096  0.763  1.0
  Te  Te12  1  0.374  0.626  0.750  1.0
  Te  Te13  1  0.626  0.374  0.250  1.0
  Te  Te14  1  0.146  0.854  0.250  1.0
  Te  Te15  1  0.854  0.146  0.750  1.0
  O  O16  1  0.093  0.632  0.286  1.0
  O  O17  1  0.368  0.907  0.214  1.0
  O  O18  1  0.907  0.368  0.714  1.0
  O  O19  1  0.632  0.093  0.786  1.0
  O  O20  1  0.885  0.012  0.908  1.0
  O  O21  1  0.988  0.115  0.592  1.0
  O  O22  1  0.115  0.988  0.092  1.0
  O  O23  1  0.012  0.885  0.408  1.0
  O  O24  1  0.668  0.583  0.256  1.0
  O  O25  1  0.417  0.332  0.244  1.0
  O  O26  1  0.332  0.417  0.744  1.0
  O  O27  1  0.583  0.668  0.756  1.0
  O  O28  1  0.520  0.263  0.458  1.0
  O  O29  1  0.737  0.480  0.042  1.0
  O  O30  1  0.480  0.737  0.542  1.0
  O  O31  1  0.263  0.520  0.958  1.0
  O  O32  1  0.225  0.775  0.750  1.0
  O  O33  1  0.775  0.225  0.250  1.0
[/CIF]
.
The material structure described by Rb6Te2O9 crystallizes in the monoclinic C2/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 8-coordinate geometry to two equivalent O(4), three equivalent O(1), and three equivalent O(3) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(5), two equivalent O(2), and two equivalent O(4) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal bipyramidal geometry to one O(5), two equivalent O(3), and two equivalent O(4) atoms. In the second Te site, Te(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(2), one Rb(3), three equivalent Rb(1), and one Te(2) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Te(2) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(3), three equivalent Rb(1), and one Te(1) atom. In the fourth O site, O(4) is bonded to one Rb(3), two equivalent Rb(1), two equivalent Rb(2), and one Te(1) atom to form a mixture of distorted edge and corner-sharing ORb5Te octahedra. The corner-sharing octahedral tilt angles are 2°. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to two equivalent Rb(2), two equivalent Rb(3), and one Te(1) atom. is represented by the CIF card [CIF]
data_Rb6Te2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.746
_cell_length_b   8.746
_cell_length_c   11.027
_cell_angle_alpha   67.860
_cell_angle_beta   67.860
_cell_angle_gamma   92.851
_symmetry_Int_Tables_number   1
_cell_volume   705.460
_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
  Rb  Rb0  1  0.498  0.698  0.025  1.0
  Rb  Rb1  1  0.302  0.502  0.475  1.0
  Rb  Rb2  1  0.502  0.302  0.975  1.0
  Rb  Rb3  1  0.698  0.498  0.525  1.0
  Rb  Rb4  1  1.000  0.705  0.029  1.0
  Rb  Rb5  1  0.295  0.000  0.471  1.0
  Rb  Rb6  1  0.000  0.295  0.971  1.0
  Rb  Rb7  1  0.705  1.000  0.529  1.0
  Rb  Rb8  1  0.096  0.320  0.263  1.0
  Rb  Rb9  1  0.680  0.904  0.237  1.0
  Rb  Rb10  1  0.904  0.680  0.737  1.0
  Rb  Rb11  1  0.320  0.096  0.763  1.0
  Te  Te12  1  0.374  0.626  0.750  1.0
  Te  Te13  1  0.626  0.374  0.250  1.0
  Te  Te14  1  0.146  0.854  0.250  1.0
  Te  Te15  1  0.854  0.146  0.750  1.0
  O  O16  1  0.093  0.632  0.286  1.0
  O  O17  1  0.368  0.907  0.214  1.0
  O  O18  1  0.907  0.368  0.714  1.0
  O  O19  1  0.632  0.093  0.786  1.0
  O  O20  1  0.885  0.012  0.908  1.0
  O  O21  1  0.988  0.115  0.592  1.0
  O  O22  1  0.115  0.988  0.092  1.0
  O  O23  1  0.012  0.885  0.408  1.0
  O  O24  1  0.668  0.583  0.256  1.0
  O  O25  1  0.417  0.332  0.244  1.0
  O  O26  1  0.332  0.417  0.744  1.0
  O  O27  1  0.583  0.668  0.756  1.0
  O  O28  1  0.520  0.263  0.458  1.0
  O  O29  1  0.737  0.480  0.042  1.0
  O  O30  1  0.480  0.737  0.542  1.0
  O  O31  1  0.263  0.520  0.958  1.0
  O  O32  1  0.225  0.775  0.750  1.0
  O  O33  1  0.775  0.225  0.250  1.0
[/CIF]
.