The crystal structure described by Rb2SeMoO6 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to one Se(1), two equivalent O(2), three equivalent O(3), and four equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 11-coordinate geometry to one O(3), two equivalent O(4), four equivalent O(1), and four equivalent O(2) atoms. Mo(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Se(1) is bonded in a trigonal non-coplanar geometry to one Rb(1), one O(3), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Rb(2), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), one Mo(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one Se(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Rb(2) and two equivalent Mo(1) atoms. is represented by the CIF file [CIF]
data_Rb2MoSeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   7.799
_cell_length_c   14.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   696.164
_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
  Rb  Rb0  1  0.250  0.873  0.467  1.0
  Rb  Rb1  1  0.250  0.373  0.033  1.0
  Rb  Rb2  1  0.750  0.157  0.799  1.0
  Rb  Rb3  1  0.750  0.127  0.533  1.0
  Rb  Rb4  1  0.250  0.343  0.299  1.0
  Rb  Rb5  1  0.750  0.627  0.967  1.0
  Rb  Rb6  1  0.750  0.657  0.701  1.0
  Rb  Rb7  1  0.250  0.843  0.201  1.0
  Mo  Mo8  1  0.250  0.898  0.731  1.0
  Mo  Mo9  1  0.750  0.602  0.231  1.0
  Mo  Mo10  1  0.250  0.398  0.769  1.0
  Mo  Mo11  1  0.750  0.102  0.269  1.0
  Se  Se12  1  0.750  0.083  0.062  1.0
  Se  Se13  1  0.250  0.917  0.938  1.0
  Se  Se14  1  0.750  0.583  0.438  1.0
  Se  Se15  1  0.250  0.417  0.562  1.0
  O  O16  1  0.974  0.049  0.336  1.0
  O  O17  1  0.953  0.112  0.144  1.0
  O  O18  1  0.047  0.388  0.644  1.0
  O  O19  1  0.750  0.258  0.997  1.0
  O  O20  1  0.250  0.670  0.722  1.0
  O  O21  1  0.047  0.888  0.856  1.0
  O  O22  1  0.526  0.549  0.164  1.0
  O  O23  1  0.026  0.451  0.836  1.0
  O  O24  1  0.547  0.612  0.356  1.0
  O  O25  1  0.526  0.049  0.336  1.0
  O  O26  1  0.250  0.170  0.778  1.0
  O  O27  1  0.250  0.742  0.003  1.0
  O  O28  1  0.026  0.951  0.664  1.0
  O  O29  1  0.453  0.388  0.644  1.0
  O  O30  1  0.250  0.242  0.497  1.0
  O  O31  1  0.474  0.951  0.664  1.0
  O  O32  1  0.750  0.330  0.278  1.0
  O  O33  1  0.750  0.758  0.503  1.0
  O  O34  1  0.474  0.451  0.836  1.0
  O  O35  1  0.953  0.612  0.356  1.0
  O  O36  1  0.974  0.549  0.164  1.0
  O  O37  1  0.547  0.112  0.144  1.0
  O  O38  1  0.453  0.888  0.856  1.0
  O  O39  1  0.750  0.830  0.222  1.0
[/CIF]
.
The crystal structure described by Rb2SeMoO6 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to one Se(1), two equivalent O(2), three equivalent O(3), and four equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 11-coordinate geometry to one O(3), two equivalent O(4), four equivalent O(1), and four equivalent O(2) atoms. Mo(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Se(1) is bonded in a trigonal non-coplanar geometry to one Rb(1), one O(3), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1), two equivalent Rb(2), and one Mo(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), one Mo(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one Se(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to two equivalent Rb(2) and two equivalent Mo(1) atoms. is represented by the CIF file [CIF]
data_Rb2MoSeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   7.799
_cell_length_c   14.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   696.164
_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
  Rb  Rb0  1  0.250  0.873  0.467  1.0
  Rb  Rb1  1  0.250  0.373  0.033  1.0
  Rb  Rb2  1  0.750  0.157  0.799  1.0
  Rb  Rb3  1  0.750  0.127  0.533  1.0
  Rb  Rb4  1  0.250  0.343  0.299  1.0
  Rb  Rb5  1  0.750  0.627  0.967  1.0
  Rb  Rb6  1  0.750  0.657  0.701  1.0
  Rb  Rb7  1  0.250  0.843  0.201  1.0
  Mo  Mo8  1  0.250  0.898  0.731  1.0
  Mo  Mo9  1  0.750  0.602  0.231  1.0
  Mo  Mo10  1  0.250  0.398  0.769  1.0
  Mo  Mo11  1  0.750  0.102  0.269  1.0
  Se  Se12  1  0.750  0.083  0.062  1.0
  Se  Se13  1  0.250  0.917  0.938  1.0
  Se  Se14  1  0.750  0.583  0.438  1.0
  Se  Se15  1  0.250  0.417  0.562  1.0
  O  O16  1  0.974  0.049  0.336  1.0
  O  O17  1  0.953  0.112  0.144  1.0
  O  O18  1  0.047  0.388  0.644  1.0
  O  O19  1  0.750  0.258  0.997  1.0
  O  O20  1  0.250  0.670  0.722  1.0
  O  O21  1  0.047  0.888  0.856  1.0
  O  O22  1  0.526  0.549  0.164  1.0
  O  O23  1  0.026  0.451  0.836  1.0
  O  O24  1  0.547  0.612  0.356  1.0
  O  O25  1  0.526  0.049  0.336  1.0
  O  O26  1  0.250  0.170  0.778  1.0
  O  O27  1  0.250  0.742  0.003  1.0
  O  O28  1  0.026  0.951  0.664  1.0
  O  O29  1  0.453  0.388  0.644  1.0
  O  O30  1  0.250  0.242  0.497  1.0
  O  O31  1  0.474  0.951  0.664  1.0
  O  O32  1  0.750  0.330  0.278  1.0
  O  O33  1  0.750  0.758  0.503  1.0
  O  O34  1  0.474  0.451  0.836  1.0
  O  O35  1  0.953  0.612  0.356  1.0
  O  O36  1  0.974  0.549  0.164  1.0
  O  O37  1  0.547  0.112  0.144  1.0
  O  O38  1  0.453  0.888  0.856  1.0
  O  O39  1  0.750  0.830  0.222  1.0
[/CIF]
.