The material structure described by Rb2LiNb2(TeO6)2 crystallizes in the triclinic P1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(10), one O(11), one O(7), and one O(8) atom. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one Li(1), one O(1), one O(12), one O(3), one O(6), one O(7), and one O(9) atom. Li(1) is bonded in a 4-coordinate geometry to one Rb(2), one O(12), one O(2), one O(7), and one O(9) atom. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Te(1)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-51°. In the second Nb site, Nb(2) is bonded to one O(12), one O(2), one O(3), one O(6), one O(8), and one O(9) atom to form distorted NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Te(1)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-51°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(10), one O(12), one O(4), one O(6), and one O(7) atom to form TeO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-45°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-46°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(2), one Te(1), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Nb(1), and one Nb(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(2), one Nb(2), and one Te(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Nb(1) and one Te(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Rb(2), one Nb(2), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one Te(1), and one Te(2) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(1), and one Nb(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nb(2), and one Te(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Te(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Rb(1), one Nb(1), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nb(2), and one Te(1) atom. is represented by the CIF file [CIF]
data_Rb2LiNb2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.496
_cell_length_b   7.608
_cell_length_c   7.483
_cell_angle_alpha   90.290
_cell_angle_beta   59.684
_cell_angle_gamma   120.311
_symmetry_Int_Tables_number   1
_cell_volume   299.677
_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
  Rb  Rb0  1  0.741  0.419  0.382  1.0
  Rb  Rb1  1  0.346  0.772  0.570  1.0
  Li  Li2  1  0.954  0.274  0.778  1.0
  Nb  Nb3  1  0.519  0.473  0.990  1.0
  Nb  Nb4  1  0.460  0.948  0.019  1.0
  Te  Te5  1  0.995  0.993  0.502  1.0
  Te  Te6  1  0.992  0.990  0.006  1.0
  O  O7  1  0.854  0.915  0.330  1.0
  O  O8  1  0.661  0.314  0.917  1.0
  O  O9  1  0.247  0.921  0.929  1.0
  O  O10  1  0.249  0.296  0.315  1.0
  O  O11  1  0.265  0.305  0.924  1.0
  O  O12  1  0.238  0.926  0.324  1.0
  O  O13  1  0.138  0.081  0.675  1.0
  O  O14  1  0.366  0.670  0.070  1.0
  O  O15  1  0.746  0.061  0.069  1.0
  O  O16  1  0.760  0.689  0.683  1.0
  O  O17  1  0.742  0.675  0.076  1.0
  O  O18  1  0.756  0.062  0.683  1.0
[/CIF]
.
The material structure described by Rb2LiNb2(TeO6)2 crystallizes in the triclinic P1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(10), one O(11), one O(7), and one O(8) atom. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one Li(1), one O(1), one O(12), one O(3), one O(6), one O(7), and one O(9) atom. Li(1) is bonded in a 4-coordinate geometry to one Rb(2), one O(12), one O(2), one O(7), and one O(9) atom. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(5), and one O(8) atom to form NbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra, corners with two equivalent Te(1)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-51°. In the second Nb site, Nb(2) is bonded to one O(12), one O(2), one O(3), one O(6), one O(8), and one O(9) atom to form distorted NbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Te(1)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-51°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(10), one O(12), one O(4), one O(6), and one O(7) atom to form TeO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-45°. In the second Te site, Te(2) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form TeO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra, corners with two equivalent Nb(2)O6 octahedra, and corners with two equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-46°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(2), one Te(1), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Nb(1), and one Nb(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(2), one Nb(2), and one Te(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nb(1) and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Nb(1) and one Te(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Rb(2), one Nb(2), and one Te(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), one Li(1), one Te(1), and one Te(2) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), one Nb(1), and one Nb(2) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nb(2), and one Te(2) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Nb(1), and one Te(1) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Rb(1), one Nb(1), and one Te(2) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Rb(2), one Li(1), one Nb(2), and one Te(1) atom. is represented by the CIF file [CIF]
data_Rb2LiNb2(TeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.496
_cell_length_b   7.608
_cell_length_c   7.483
_cell_angle_alpha   90.290
_cell_angle_beta   59.684
_cell_angle_gamma   120.311
_symmetry_Int_Tables_number   1
_cell_volume   299.677
_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
  Rb  Rb0  1  0.741  0.419  0.382  1.0
  Rb  Rb1  1  0.346  0.772  0.570  1.0
  Li  Li2  1  0.954  0.274  0.778  1.0
  Nb  Nb3  1  0.519  0.473  0.990  1.0
  Nb  Nb4  1  0.460  0.948  0.019  1.0
  Te  Te5  1  0.995  0.993  0.502  1.0
  Te  Te6  1  0.992  0.990  0.006  1.0
  O  O7  1  0.854  0.915  0.330  1.0
  O  O8  1  0.661  0.314  0.917  1.0
  O  O9  1  0.247  0.921  0.929  1.0
  O  O10  1  0.249  0.296  0.315  1.0
  O  O11  1  0.265  0.305  0.924  1.0
  O  O12  1  0.238  0.926  0.324  1.0
  O  O13  1  0.138  0.081  0.675  1.0
  O  O14  1  0.366  0.670  0.070  1.0
  O  O15  1  0.746  0.061  0.069  1.0
  O  O16  1  0.760  0.689  0.683  1.0
  O  O17  1  0.742  0.675  0.076  1.0
  O  O18  1  0.756  0.062  0.683  1.0
[/CIF]
.