The structure described by Rb6Ge2O7 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), and two equivalent O(4) atoms. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(3) atoms. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing GeO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Ge(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Rb6Ge2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.440
_cell_length_b   6.842
_cell_length_c   11.559
_cell_angle_alpha   55.178
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   612.884
_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  0.785  0.601  0.279  1.0
  Rb  Rb1  1  0.715  0.601  0.779  1.0
  Rb  Rb2  1  0.215  0.399  0.721  1.0
  Rb  Rb3  1  0.353  0.035  0.083  1.0
  Rb  Rb4  1  0.853  0.965  0.417  1.0
  Rb  Rb5  1  0.647  0.965  0.917  1.0
  Rb  Rb6  1  0.147  0.035  0.583  1.0
  Rb  Rb7  1  0.474  0.792  0.456  1.0
  Rb  Rb8  1  0.974  0.208  0.044  1.0
  Rb  Rb9  1  0.526  0.208  0.544  1.0
  Rb  Rb10  1  0.026  0.792  0.956  1.0
  Rb  Rb11  1  0.285  0.399  0.221  1.0
  Ge  Ge12  1  0.362  0.678  0.872  1.0
  Ge  Ge13  1  0.138  0.678  0.372  1.0
  Ge  Ge14  1  0.638  0.322  0.128  1.0
  Ge  Ge15  1  0.862  0.322  0.628  1.0
  O  O16  1  0.288  0.492  0.435  1.0
  O  O17  1  0.000  0.500  0.500  1.0
  O  O18  1  0.500  0.500  0.000  1.0
  O  O19  1  0.083  0.743  0.209  1.0
  O  O20  1  0.788  0.508  0.065  1.0
  O  O21  1  0.712  0.508  0.565  1.0
  O  O22  1  0.212  0.492  0.935  1.0
  O  O23  1  0.339  0.933  0.872  1.0
  O  O24  1  0.839  0.067  0.628  1.0
  O  O25  1  0.661  0.067  0.128  1.0
  O  O26  1  0.161  0.933  0.372  1.0
  O  O27  1  0.417  0.743  0.709  1.0
  O  O28  1  0.917  0.257  0.791  1.0
  O  O29  1  0.583  0.257  0.291  1.0
[/CIF]
.
The structure described by Rb6Ge2O7 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), and two equivalent O(4) atoms. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(4), two equivalent O(1), and two equivalent O(3) atoms. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing GeO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Ge(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(3), two equivalent Rb(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Rb6Ge2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.440
_cell_length_b   6.842
_cell_length_c   11.559
_cell_angle_alpha   55.178
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   612.884
_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  0.785  0.601  0.279  1.0
  Rb  Rb1  1  0.715  0.601  0.779  1.0
  Rb  Rb2  1  0.215  0.399  0.721  1.0
  Rb  Rb3  1  0.353  0.035  0.083  1.0
  Rb  Rb4  1  0.853  0.965  0.417  1.0
  Rb  Rb5  1  0.647  0.965  0.917  1.0
  Rb  Rb6  1  0.147  0.035  0.583  1.0
  Rb  Rb7  1  0.474  0.792  0.456  1.0
  Rb  Rb8  1  0.974  0.208  0.044  1.0
  Rb  Rb9  1  0.526  0.208  0.544  1.0
  Rb  Rb10  1  0.026  0.792  0.956  1.0
  Rb  Rb11  1  0.285  0.399  0.221  1.0
  Ge  Ge12  1  0.362  0.678  0.872  1.0
  Ge  Ge13  1  0.138  0.678  0.372  1.0
  Ge  Ge14  1  0.638  0.322  0.128  1.0
  Ge  Ge15  1  0.862  0.322  0.628  1.0
  O  O16  1  0.288  0.492  0.435  1.0
  O  O17  1  0.000  0.500  0.500  1.0
  O  O18  1  0.500  0.500  0.000  1.0
  O  O19  1  0.083  0.743  0.209  1.0
  O  O20  1  0.788  0.508  0.065  1.0
  O  O21  1  0.712  0.508  0.565  1.0
  O  O22  1  0.212  0.492  0.935  1.0
  O  O23  1  0.339  0.933  0.872  1.0
  O  O24  1  0.839  0.067  0.628  1.0
  O  O25  1  0.661  0.067  0.128  1.0
  O  O26  1  0.161  0.933  0.372  1.0
  O  O27  1  0.417  0.743  0.709  1.0
  O  O28  1  0.917  0.257  0.791  1.0
  O  O29  1  0.583  0.257  0.291  1.0
[/CIF]
.