The material described by Rb5FeO4 crystallizes in the monoclinic P2_1/c space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), and two equivalent O(2) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. In the fourth Rb site, Rb(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(4) atoms. In the fifth Rb site, Rb(5) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. Fe(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Fe(1) atom. In the second O site, O(2) is bonded to one Rb(1), one Rb(4), one Rb(5), two equivalent Rb(2), and one Fe(1) atom to form distorted corner-sharing ORb5Fe octahedra. The corner-sharing octahedral tilt angles are 68°. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(2), one Rb(4), one Rb(5), two equivalent Rb(3), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Rb(5), two equivalent Rb(3), two equivalent Rb(4), and one Fe(1) atom. is represented by the CIF file [CIF]
data_Rb5FeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.786
_cell_length_b   6.958
_cell_length_c   10.889
_cell_angle_alpha   82.496
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   885.382
_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  0.912  0.226  0.013  1.0
  Rb  Rb1  1  0.588  0.726  0.013  1.0
  Rb  Rb2  1  0.171  0.176  0.149  1.0
  Rb  Rb3  1  0.329  0.676  0.149  1.0
  Rb  Rb4  1  0.704  0.985  0.241  1.0
  Rb  Rb5  1  0.796  0.485  0.241  1.0
  Rb  Rb6  1  0.070  0.446  0.368  1.0
  Rb  Rb7  1  0.430  0.946  0.368  1.0
  Rb  Rb8  1  0.861  0.078  0.507  1.0
  Rb  Rb9  1  0.361  0.422  0.493  1.0
  Rb  Rb10  1  0.639  0.578  0.507  1.0
  Rb  Rb11  1  0.139  0.922  0.493  1.0
  Rb  Rb12  1  0.570  0.054  0.632  1.0
  Rb  Rb13  1  0.930  0.554  0.632  1.0
  Rb  Rb14  1  0.204  0.515  0.759  1.0
  Rb  Rb15  1  0.296  0.015  0.759  1.0
  Rb  Rb16  1  0.671  0.324  0.851  1.0
  Rb  Rb17  1  0.829  0.824  0.851  1.0
  Rb  Rb18  1  0.412  0.274  0.987  1.0
  Rb  Rb19  1  0.088  0.774  0.987  1.0
  Fe  Fe20  1  0.533  0.376  0.253  1.0
  Fe  Fe21  1  0.967  0.876  0.253  1.0
  Fe  Fe22  1  0.033  0.124  0.747  1.0
  Fe  Fe23  1  0.467  0.624  0.747  1.0
  O  O24  1  0.612  0.330  0.106  1.0
  O  O25  1  0.888  0.830  0.106  1.0
  O  O26  1  0.376  0.305  0.243  1.0
  O  O27  1  0.959  0.145  0.269  1.0
  O  O28  1  0.124  0.805  0.243  1.0
  O  O29  1  0.541  0.645  0.269  1.0
  O  O30  1  0.603  0.236  0.395  1.0
  O  O31  1  0.897  0.736  0.395  1.0
  O  O32  1  0.103  0.264  0.605  1.0
  O  O33  1  0.397  0.764  0.605  1.0
  O  O34  1  0.459  0.355  0.731  1.0
  O  O35  1  0.876  0.195  0.757  1.0
  O  O36  1  0.041  0.855  0.731  1.0
  O  O37  1  0.624  0.695  0.757  1.0
  O  O38  1  0.112  0.170  0.894  1.0
  O  O39  1  0.388  0.670  0.894  1.0
[/CIF]
.
The material described by Rb5FeO4 crystallizes in the monoclinic P2_1/c space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), and two equivalent O(2) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. In the fourth Rb site, Rb(4) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(4) atoms. In the fifth Rb site, Rb(5) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. Fe(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), and one Fe(1) atom. In the second O site, O(2) is bonded to one Rb(1), one Rb(4), one Rb(5), two equivalent Rb(2), and one Fe(1) atom to form distorted corner-sharing ORb5Fe octahedra. The corner-sharing octahedral tilt angles are 68°. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(2), one Rb(4), one Rb(5), two equivalent Rb(3), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Rb(5), two equivalent Rb(3), two equivalent Rb(4), and one Fe(1) atom. is represented by the CIF file [CIF]
data_Rb5FeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.786
_cell_length_b   6.958
_cell_length_c   10.889
_cell_angle_alpha   82.496
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   885.382
_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  0.912  0.226  0.013  1.0
  Rb  Rb1  1  0.588  0.726  0.013  1.0
  Rb  Rb2  1  0.171  0.176  0.149  1.0
  Rb  Rb3  1  0.329  0.676  0.149  1.0
  Rb  Rb4  1  0.704  0.985  0.241  1.0
  Rb  Rb5  1  0.796  0.485  0.241  1.0
  Rb  Rb6  1  0.070  0.446  0.368  1.0
  Rb  Rb7  1  0.430  0.946  0.368  1.0
  Rb  Rb8  1  0.861  0.078  0.507  1.0
  Rb  Rb9  1  0.361  0.422  0.493  1.0
  Rb  Rb10  1  0.639  0.578  0.507  1.0
  Rb  Rb11  1  0.139  0.922  0.493  1.0
  Rb  Rb12  1  0.570  0.054  0.632  1.0
  Rb  Rb13  1  0.930  0.554  0.632  1.0
  Rb  Rb14  1  0.204  0.515  0.759  1.0
  Rb  Rb15  1  0.296  0.015  0.759  1.0
  Rb  Rb16  1  0.671  0.324  0.851  1.0
  Rb  Rb17  1  0.829  0.824  0.851  1.0
  Rb  Rb18  1  0.412  0.274  0.987  1.0
  Rb  Rb19  1  0.088  0.774  0.987  1.0
  Fe  Fe20  1  0.533  0.376  0.253  1.0
  Fe  Fe21  1  0.967  0.876  0.253  1.0
  Fe  Fe22  1  0.033  0.124  0.747  1.0
  Fe  Fe23  1  0.467  0.624  0.747  1.0
  O  O24  1  0.612  0.330  0.106  1.0
  O  O25  1  0.888  0.830  0.106  1.0
  O  O26  1  0.376  0.305  0.243  1.0
  O  O27  1  0.959  0.145  0.269  1.0
  O  O28  1  0.124  0.805  0.243  1.0
  O  O29  1  0.541  0.645  0.269  1.0
  O  O30  1  0.603  0.236  0.395  1.0
  O  O31  1  0.897  0.736  0.395  1.0
  O  O32  1  0.103  0.264  0.605  1.0
  O  O33  1  0.397  0.764  0.605  1.0
  O  O34  1  0.459  0.355  0.731  1.0
  O  O35  1  0.876  0.195  0.757  1.0
  O  O36  1  0.041  0.855  0.731  1.0
  O  O37  1  0.624  0.695  0.757  1.0
  O  O38  1  0.112  0.170  0.894  1.0
  O  O39  1  0.388  0.670  0.894  1.0
[/CIF]
.