The compound described by RbGa(SeO4)2 crystallizes in the trigonal P321 space group. Rb(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. Ga(1) is bonded to six equivalent O(1) atoms to form distorted GaO6 pentagonal pyramids that share corners with six equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(2) and three equivalent O(1) atoms to form SeO4 tetrahedra that share corners with three equivalent Ga(1)O6 pentagonal pyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ga(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbGa(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.150
_cell_length_b   5.150
_cell_length_c   9.072
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   208.346
_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  0.000  0.000  0.500  1.0
  Ga  Ga1  1  0.000  0.000  0.000  1.0
  Se  Se2  1  0.667  0.333  0.800  1.0
  Se  Se3  1  0.333  0.667  0.200  1.0
  O  O4  1  0.932  0.258  0.858  1.0
  O  O5  1  0.326  0.068  0.858  1.0
  O  O6  1  0.674  0.742  0.142  1.0
  O  O7  1  0.742  0.674  0.858  1.0
  O  O8  1  0.258  0.932  0.142  1.0
  O  O9  1  0.068  0.326  0.142  1.0
  O  O10  1  0.667  0.333  0.619  1.0
  O  O11  1  0.333  0.667  0.381  1.0
[/CIF]
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The compound described by RbGa(SeO4)2 crystallizes in the trigonal P321 space group. Rb(1) is bonded in a 6-coordinate geometry to six equivalent O(2) atoms. Ga(1) is bonded to six equivalent O(1) atoms to form distorted GaO6 pentagonal pyramids that share corners with six equivalent Se(1)O4 tetrahedra. Se(1) is bonded to one O(2) and three equivalent O(1) atoms to form SeO4 tetrahedra that share corners with three equivalent Ga(1)O6 pentagonal pyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ga(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Rb(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbGa(SeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.150
_cell_length_b   5.150
_cell_length_c   9.072
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   208.346
_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  0.000  0.000  0.500  1.0
  Ga  Ga1  1  0.000  0.000  0.000  1.0
  Se  Se2  1  0.667  0.333  0.800  1.0
  Se  Se3  1  0.333  0.667  0.200  1.0
  O  O4  1  0.932  0.258  0.858  1.0
  O  O5  1  0.326  0.068  0.858  1.0
  O  O6  1  0.674  0.742  0.142  1.0
  O  O7  1  0.742  0.674  0.858  1.0
  O  O8  1  0.258  0.932  0.142  1.0
  O  O9  1  0.068  0.326  0.142  1.0
  O  O10  1  0.667  0.333  0.619  1.0
  O  O11  1  0.333  0.667  0.381  1.0
[/CIF]
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