The material structure described by RbLa9(IrO6)4 crystallizes in the tetragonal I4/m space group. Rb(1) is bonded in a distorted linear geometry to two equivalent O(5) and eight equivalent O(1) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(5), three equivalent O(1), and three equivalent O(2) atoms. In the second La site, La(2) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form LaO6 octahedra that share corners with two equivalent Ir(2)O6 octahedra and corners with four equivalent Ir(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-56°. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form IrO6 octahedra that share corners with two equivalent La(2)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. In the second Ir site, Ir(2) is bonded to one O(4), one O(5), and four equivalent O(2) atoms to form IrO6 octahedra that share  a cornercorner with one La(2)O6 octahedra. The corner-sharing octahedra are not tilted. There are five inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one La(2), two equivalent La(1), and one Ir(1) atom. In the second O site, O(4) is bonded in a distorted linear geometry to one La(2), four equivalent La(1), and one Ir(2) atom. In the third O site, O(5) is bonded to one Rb(1), four equivalent La(1), and one Ir(2) atom to form distorted corner-sharing ORbLa4Ir octahedra. The corner-sharing octahedra are not tilted. In the fourth O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), three equivalent La(1), and one Ir(1) atom. In the fifth O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent La(1) and one Ir(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbLa9(IrO6)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.512
_cell_length_b   10.512
_cell_length_c   10.512
_cell_angle_alpha   136.302
_cell_angle_beta   136.302
_cell_angle_gamma   63.514
_symmetry_Int_Tables_number   1
_cell_volume   547.157
_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  0.500  0.500  0.000  1.0
  La  La1  1  0.830  0.964  0.505  1.0
  La  La2  1  0.325  0.830  0.866  1.0
  La  La3  1  0.964  0.459  0.134  1.0
  La  La4  1  0.675  0.170  0.134  1.0
  La  La5  1  0.170  0.036  0.495  1.0
  La  La6  1  0.036  0.541  0.866  1.0
  La  La7  1  0.459  0.325  0.495  1.0
  La  La8  1  0.000  0.000  0.000  1.0
  La  La9  1  0.541  0.675  0.505  1.0
  Ir  Ir10  1  0.500  0.000  0.500  1.0
  Ir  Ir11  1  0.759  0.759  0.000  1.0
  Ir  Ir12  1  0.241  0.241  0.000  1.0
  Ir  Ir13  1  0.000  0.500  0.500  1.0
  O  O14  1  0.685  0.223  0.732  1.0
  O  O15  1  0.223  0.492  0.538  1.0
  O  O16  1  0.520  0.827  0.816  1.0
  O  O17  1  0.296  0.480  0.307  1.0
  O  O18  1  0.131  0.713  0.844  1.0
  O  O19  1  0.827  0.011  0.307  1.0
  O  O20  1  0.953  0.685  0.462  1.0
  O  O21  1  0.287  0.131  0.418  1.0
  O  O22  1  0.989  0.296  0.816  1.0
  O  O23  1  0.508  0.047  0.732  1.0
  O  O24  1  0.492  0.953  0.268  1.0
  O  O25  1  0.872  0.872  0.000  1.0
  O  O26  1  0.777  0.508  0.462  1.0
  O  O27  1  0.480  0.173  0.184  1.0
  O  O28  1  0.315  0.777  0.268  1.0
  O  O29  1  0.128  0.128  0.000  1.0
  O  O30  1  0.713  0.869  0.582  1.0
  O  O31  1  0.869  0.287  0.156  1.0
  O  O32  1  0.704  0.520  0.693  1.0
  O  O33  1  0.173  0.989  0.693  1.0
  O  O34  1  0.350  0.350  0.000  1.0
  O  O35  1  0.650  0.650  0.000  1.0
  O  O36  1  0.047  0.315  0.538  1.0
  O  O37  1  0.011  0.704  0.184  1.0
[/CIF]
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The material structure described by RbLa9(IrO6)4 crystallizes in the tetragonal I4/m space group. Rb(1) is bonded in a distorted linear geometry to two equivalent O(5) and eight equivalent O(1) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(5), three equivalent O(1), and three equivalent O(2) atoms. In the second La site, La(2) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form LaO6 octahedra that share corners with two equivalent Ir(2)O6 octahedra and corners with four equivalent Ir(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-56°. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form IrO6 octahedra that share corners with two equivalent La(2)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. In the second Ir site, Ir(2) is bonded to one O(4), one O(5), and four equivalent O(2) atoms to form IrO6 octahedra that share  a cornercorner with one La(2)O6 octahedra. The corner-sharing octahedra are not tilted. There are five inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one La(2), two equivalent La(1), and one Ir(1) atom. In the second O site, O(4) is bonded in a distorted linear geometry to one La(2), four equivalent La(1), and one Ir(2) atom. In the third O site, O(5) is bonded to one Rb(1), four equivalent La(1), and one Ir(2) atom to form distorted corner-sharing ORbLa4Ir octahedra. The corner-sharing octahedra are not tilted. In the fourth O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), three equivalent La(1), and one Ir(1) atom. In the fifth O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent La(1) and one Ir(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbLa9(IrO6)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.512
_cell_length_b   10.512
_cell_length_c   10.512
_cell_angle_alpha   136.302
_cell_angle_beta   136.302
_cell_angle_gamma   63.514
_symmetry_Int_Tables_number   1
_cell_volume   547.157
_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  0.500  0.500  0.000  1.0
  La  La1  1  0.830  0.964  0.505  1.0
  La  La2  1  0.325  0.830  0.866  1.0
  La  La3  1  0.964  0.459  0.134  1.0
  La  La4  1  0.675  0.170  0.134  1.0
  La  La5  1  0.170  0.036  0.495  1.0
  La  La6  1  0.036  0.541  0.866  1.0
  La  La7  1  0.459  0.325  0.495  1.0
  La  La8  1  0.000  0.000  0.000  1.0
  La  La9  1  0.541  0.675  0.505  1.0
  Ir  Ir10  1  0.500  0.000  0.500  1.0
  Ir  Ir11  1  0.759  0.759  0.000  1.0
  Ir  Ir12  1  0.241  0.241  0.000  1.0
  Ir  Ir13  1  0.000  0.500  0.500  1.0
  O  O14  1  0.685  0.223  0.732  1.0
  O  O15  1  0.223  0.492  0.538  1.0
  O  O16  1  0.520  0.827  0.816  1.0
  O  O17  1  0.296  0.480  0.307  1.0
  O  O18  1  0.131  0.713  0.844  1.0
  O  O19  1  0.827  0.011  0.307  1.0
  O  O20  1  0.953  0.685  0.462  1.0
  O  O21  1  0.287  0.131  0.418  1.0
  O  O22  1  0.989  0.296  0.816  1.0
  O  O23  1  0.508  0.047  0.732  1.0
  O  O24  1  0.492  0.953  0.268  1.0
  O  O25  1  0.872  0.872  0.000  1.0
  O  O26  1  0.777  0.508  0.462  1.0
  O  O27  1  0.480  0.173  0.184  1.0
  O  O28  1  0.315  0.777  0.268  1.0
  O  O29  1  0.128  0.128  0.000  1.0
  O  O30  1  0.713  0.869  0.582  1.0
  O  O31  1  0.869  0.287  0.156  1.0
  O  O32  1  0.704  0.520  0.693  1.0
  O  O33  1  0.173  0.989  0.693  1.0
  O  O34  1  0.350  0.350  0.000  1.0
  O  O35  1  0.650  0.650  0.000  1.0
  O  O36  1  0.047  0.315  0.538  1.0
  O  O37  1  0.011  0.704  0.184  1.0
[/CIF]
.