The compound described by RbSeO4 crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and four equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to one O(2), one O(3), one O(4), two equivalent O(1), two equivalent O(5), and three equivalent O(6) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one Se(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(1), one Rb(2), and one Se(2) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Rb(2), two equivalent Rb(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(2) and one Se(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to three equivalent Rb(2) and one Se(2) atom. is represented by the CIF card [CIF]
data_RbSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.971
_cell_length_b   10.971
_cell_length_c   4.546
_cell_angle_alpha   78.099
_cell_angle_beta   78.099
_cell_angle_gamma   41.234
_symmetry_Int_Tables_number   1
_cell_volume   351.795
_cell_formula_units_Z   3
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  0.493  0.507  0.000  1.0
  Rb  Rb1  1  0.246  0.084  0.418  1.0
  Rb  Rb2  1  0.916  0.754  0.582  1.0
  Se  Se3  1  0.998  0.002  0.000  1.0
  Se  Se4  1  0.743  0.588  0.291  1.0
  Se  Se5  1  0.412  0.257  0.709  1.0
  O  O6  1  0.182  0.945  0.043  1.0
  O  O7  1  0.055  0.818  0.957  1.0
  O  O8  1  0.891  0.164  0.697  1.0
  O  O9  1  0.836  0.109  0.303  1.0
  O  O10  1  0.844  0.422  0.060  1.0
  O  O11  1  0.578  0.156  0.940  1.0
  O  O12  1  0.554  0.657  0.471  1.0
  O  O13  1  0.343  0.446  0.529  1.0
  O  O14  1  0.901  0.488  0.538  1.0
  O  O15  1  0.512  0.099  0.462  1.0
  O  O16  1  0.698  0.762  0.096  1.0
  O  O17  1  0.238  0.302  0.904  1.0
[/CIF]
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The compound described by RbSeO4 crystallizes in the monoclinic C2 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and four equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to one O(2), one O(3), one O(4), two equivalent O(1), two equivalent O(5), and three equivalent O(6) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one Se(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Rb(1), one Rb(2), and one Se(2) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Rb(2), two equivalent Rb(1), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(2) and one Se(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to three equivalent Rb(2) and one Se(2) atom. is represented by the CIF card [CIF]
data_RbSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.971
_cell_length_b   10.971
_cell_length_c   4.546
_cell_angle_alpha   78.099
_cell_angle_beta   78.099
_cell_angle_gamma   41.234
_symmetry_Int_Tables_number   1
_cell_volume   351.795
_cell_formula_units_Z   3
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  0.493  0.507  0.000  1.0
  Rb  Rb1  1  0.246  0.084  0.418  1.0
  Rb  Rb2  1  0.916  0.754  0.582  1.0
  Se  Se3  1  0.998  0.002  0.000  1.0
  Se  Se4  1  0.743  0.588  0.291  1.0
  Se  Se5  1  0.412  0.257  0.709  1.0
  O  O6  1  0.182  0.945  0.043  1.0
  O  O7  1  0.055  0.818  0.957  1.0
  O  O8  1  0.891  0.164  0.697  1.0
  O  O9  1  0.836  0.109  0.303  1.0
  O  O10  1  0.844  0.422  0.060  1.0
  O  O11  1  0.578  0.156  0.940  1.0
  O  O12  1  0.554  0.657  0.471  1.0
  O  O13  1  0.343  0.446  0.529  1.0
  O  O14  1  0.901  0.488  0.538  1.0
  O  O15  1  0.512  0.099  0.462  1.0
  O  O16  1  0.698  0.762  0.096  1.0
  O  O17  1  0.238  0.302  0.904  1.0
[/CIF]
.