The compound described by RbFe(MoO4)2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form RbO12 cuboctahedra that share edges with six equivalent Rb(1)O12 cuboctahedra, edges with six equivalent Mo(1)O4 tetrahedra, and faces with two equivalent Fe(1)O6 octahedra. Mo(1) is bonded to one O(2) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra and edges with three equivalent Rb(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 19°. Fe(1) is bonded to six equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent Rb(1)O12 cuboctahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(1), and one Fe(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Rb(1) and one Mo(1) atom. is represented by the CIF card [CIF]
data_RbFe(MoO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.788
_cell_length_b   5.788
_cell_length_c   7.877
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   228.573
_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
  Fe  Fe1  1  0.000  0.000  0.000  1.0
  Mo  Mo2  1  0.333  0.667  0.221  1.0
  Mo  Mo3  1  0.667  0.333  0.779  1.0
  O  O4  1  0.839  0.161  0.849  1.0
  O  O5  1  0.839  0.677  0.849  1.0
  O  O6  1  0.323  0.161  0.849  1.0
  O  O7  1  0.677  0.839  0.151  1.0
  O  O8  1  0.333  0.667  0.443  1.0
  O  O9  1  0.667  0.333  0.557  1.0
  O  O10  1  0.161  0.323  0.151  1.0
  O  O11  1  0.161  0.839  0.151  1.0
[/CIF]
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The compound described by RbFe(MoO4)2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form RbO12 cuboctahedra that share edges with six equivalent Rb(1)O12 cuboctahedra, edges with six equivalent Mo(1)O4 tetrahedra, and faces with two equivalent Fe(1)O6 octahedra. Mo(1) is bonded to one O(2) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra and edges with three equivalent Rb(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 19°. Fe(1) is bonded to six equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent Rb(1)O12 cuboctahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Mo(1), and one Fe(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Rb(1) and one Mo(1) atom. is represented by the CIF card [CIF]
data_RbFe(MoO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.788
_cell_length_b   5.788
_cell_length_c   7.877
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   228.573
_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
  Fe  Fe1  1  0.000  0.000  0.000  1.0
  Mo  Mo2  1  0.333  0.667  0.221  1.0
  Mo  Mo3  1  0.667  0.333  0.779  1.0
  O  O4  1  0.839  0.161  0.849  1.0
  O  O5  1  0.839  0.677  0.849  1.0
  O  O6  1  0.323  0.161  0.849  1.0
  O  O7  1  0.677  0.839  0.151  1.0
  O  O8  1  0.333  0.667  0.443  1.0
  O  O9  1  0.667  0.333  0.557  1.0
  O  O10  1  0.161  0.323  0.151  1.0
  O  O11  1  0.161  0.839  0.151  1.0
[/CIF]
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