The material structure described by RbSeO4 crystallizes in the triclinic P-1 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(1), one O(2), one O(4), one O(8), and two equivalent O(6) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one O(10), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the third Rb site, Rb(3) is bonded in a 10-coordinate geometry to one O(10), one O(7), one O(9), two equivalent O(11), two equivalent O(5), and three equivalent O(12) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(12), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a 2-coordinate geometry to two equivalent Rb(3), one Se(3), and one O(11) atom. In the second O site, O(12) is bonded in a distorted single-bond geometry to three equivalent Rb(3) and one Se(3) atom. In the third O site, O(1) is bonded to one Rb(1), two equivalent Rb(2), and one Se(1) atom to form distorted corner-sharing ORb3Se tetrahedra. In the fourth O site, O(2) is bonded in a 1-coordinate geometry to one Rb(1) and one Se(1) atom. In the fifth O site, O(3) is bonded in a single-bond geometry to one Rb(2) and one Se(1) atom. In the sixth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Se(1) atom. In the seventh O site, O(5) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one Se(2) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one Se(2) atom. In the ninth O site, O(7) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(2) atom. In the tenth O site, O(8) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one Se(2) atom. In the eleventh O site, O(9) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(3) atom. In the twelfth O site, O(10) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(3) atom. is represented by the CIF card [CIF]
data_RbSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.696
_cell_length_b   7.749
_cell_length_c   19.753
_cell_angle_alpha   93.033
_cell_angle_beta   92.283
_cell_angle_gamma   92.210
_symmetry_Int_Tables_number   1
_cell_volume   716.577
_cell_formula_units_Z   6
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  0.689  0.824  0.093  1.0
  Rb  Rb1  1  0.311  0.176  0.907  1.0
  Rb  Rb2  1  0.301  0.261  0.252  1.0
  Rb  Rb3  1  0.699  0.739  0.748  1.0
  Rb  Rb4  1  0.867  0.821  0.411  1.0
  Rb  Rb5  1  0.133  0.179  0.589  1.0
  Se  Se6  1  0.837  0.325  0.090  1.0
  Se  Se7  1  0.163  0.675  0.910  1.0
  Se  Se8  1  0.299  0.757  0.252  1.0
  Se  Se9  1  0.701  0.243  0.748  1.0
  Se  Se10  1  0.745  0.322  0.422  1.0
  Se  Se11  1  0.255  0.678  0.578  1.0
  O  O12  1  0.745  0.200  0.153  1.0
  O  O13  1  0.255  0.800  0.847  1.0
  O  O14  1  0.925  0.205  0.022  1.0
  O  O15  1  0.075  0.795  0.978  1.0
  O  O16  1  0.111  0.463  0.120  1.0
  O  O17  1  0.889  0.537  0.880  1.0
  O  O18  1  0.565  0.452  0.067  1.0
  O  O19  1  0.435  0.548  0.933  1.0
  O  O20  1  0.420  0.888  0.317  1.0
  O  O21  1  0.580  0.112  0.683  1.0
  O  O22  1  0.189  0.873  0.188  1.0
  O  O23  1  0.811  0.127  0.812  1.0
  O  O24  1  0.036  0.623  0.279  1.0
  O  O25  1  0.964  0.377  0.721  1.0
  O  O26  1  0.558  0.625  0.225  1.0
  O  O27  1  0.442  0.375  0.775  1.0
  O  O28  1  0.538  0.468  0.392  1.0
  O  O29  1  0.462  0.532  0.608  1.0
  O  O30  1  0.926  0.214  0.366  1.0
  O  O31  1  0.074  0.786  0.634  1.0
  O  O32  1  0.055  0.462  0.469  1.0
  O  O33  1  0.945  0.538  0.531  1.0
  O  O34  1  0.623  0.200  0.482  1.0
  O  O35  1  0.377  0.800  0.518  1.0
[/CIF]
.
The material structure described by RbSeO4 crystallizes in the triclinic P-1 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(1), one O(2), one O(4), one O(8), and two equivalent O(6) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one O(10), one O(3), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the third Rb site, Rb(3) is bonded in a 10-coordinate geometry to one O(10), one O(7), one O(9), two equivalent O(11), two equivalent O(5), and three equivalent O(12) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. In the third Se site, Se(3) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(12), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a 2-coordinate geometry to two equivalent Rb(3), one Se(3), and one O(11) atom. In the second O site, O(12) is bonded in a distorted single-bond geometry to three equivalent Rb(3) and one Se(3) atom. In the third O site, O(1) is bonded to one Rb(1), two equivalent Rb(2), and one Se(1) atom to form distorted corner-sharing ORb3Se tetrahedra. In the fourth O site, O(2) is bonded in a 1-coordinate geometry to one Rb(1) and one Se(1) atom. In the fifth O site, O(3) is bonded in a single-bond geometry to one Rb(2) and one Se(1) atom. In the sixth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Se(1) atom. In the seventh O site, O(5) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one Se(2) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one Se(2) atom. In the ninth O site, O(7) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(2) atom. In the tenth O site, O(8) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one Se(2) atom. In the eleventh O site, O(9) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(3) atom. In the twelfth O site, O(10) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(3), and one Se(3) atom. is represented by the CIF card [CIF]
data_RbSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.696
_cell_length_b   7.749
_cell_length_c   19.753
_cell_angle_alpha   93.033
_cell_angle_beta   92.283
_cell_angle_gamma   92.210
_symmetry_Int_Tables_number   1
_cell_volume   716.577
_cell_formula_units_Z   6
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  0.689  0.824  0.093  1.0
  Rb  Rb1  1  0.311  0.176  0.907  1.0
  Rb  Rb2  1  0.301  0.261  0.252  1.0
  Rb  Rb3  1  0.699  0.739  0.748  1.0
  Rb  Rb4  1  0.867  0.821  0.411  1.0
  Rb  Rb5  1  0.133  0.179  0.589  1.0
  Se  Se6  1  0.837  0.325  0.090  1.0
  Se  Se7  1  0.163  0.675  0.910  1.0
  Se  Se8  1  0.299  0.757  0.252  1.0
  Se  Se9  1  0.701  0.243  0.748  1.0
  Se  Se10  1  0.745  0.322  0.422  1.0
  Se  Se11  1  0.255  0.678  0.578  1.0
  O  O12  1  0.745  0.200  0.153  1.0
  O  O13  1  0.255  0.800  0.847  1.0
  O  O14  1  0.925  0.205  0.022  1.0
  O  O15  1  0.075  0.795  0.978  1.0
  O  O16  1  0.111  0.463  0.120  1.0
  O  O17  1  0.889  0.537  0.880  1.0
  O  O18  1  0.565  0.452  0.067  1.0
  O  O19  1  0.435  0.548  0.933  1.0
  O  O20  1  0.420  0.888  0.317  1.0
  O  O21  1  0.580  0.112  0.683  1.0
  O  O22  1  0.189  0.873  0.188  1.0
  O  O23  1  0.811  0.127  0.812  1.0
  O  O24  1  0.036  0.623  0.279  1.0
  O  O25  1  0.964  0.377  0.721  1.0
  O  O26  1  0.558  0.625  0.225  1.0
  O  O27  1  0.442  0.375  0.775  1.0
  O  O28  1  0.538  0.468  0.392  1.0
  O  O29  1  0.462  0.532  0.608  1.0
  O  O30  1  0.926  0.214  0.366  1.0
  O  O31  1  0.074  0.786  0.634  1.0
  O  O32  1  0.055  0.462  0.469  1.0
  O  O33  1  0.945  0.538  0.531  1.0
  O  O34  1  0.623  0.200  0.482  1.0
  O  O35  1  0.377  0.800  0.518  1.0
[/CIF]
.