The structure described by Rb3MnO3 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. Mn(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 7-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Mn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(3), two equivalent Rb(1), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb3MnO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.898
_cell_length_b   7.046
_cell_length_c   11.858
_cell_angle_alpha   89.997
_cell_angle_beta   90.002
_cell_angle_gamma   98.415
_symmetry_Int_Tables_number   1
_cell_volume   570.132
_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  0.008  0.074  0.274  1.0
  Rb  Rb1  1  0.992  0.926  0.726  1.0
  Rb  Rb2  1  0.008  0.574  0.226  1.0
  Rb  Rb3  1  0.992  0.426  0.774  1.0
  Rb  Rb4  1  0.531  0.504  0.709  1.0
  Rb  Rb5  1  0.531  0.004  0.791  1.0
  Rb  Rb6  1  0.469  0.496  0.291  1.0
  Rb  Rb7  1  0.469  0.996  0.209  1.0
  Rb  Rb8  1  0.341  0.644  0.988  1.0
  Rb  Rb9  1  0.341  0.144  0.512  1.0
  Rb  Rb10  1  0.659  0.856  0.488  1.0
  Rb  Rb11  1  0.659  0.356  0.012  1.0
  Mn  Mn12  1  0.842  0.844  0.004  1.0
  Mn  Mn13  1  0.158  0.656  0.504  1.0
  Mn  Mn14  1  0.158  0.156  0.996  1.0
  Mn  Mn15  1  0.842  0.344  0.496  1.0
  O  O16  1  0.272  0.800  0.384  1.0
  O  O17  1  0.728  0.700  0.884  1.0
  O  O18  1  0.728  0.200  0.616  1.0
  O  O19  1  0.272  0.300  0.116  1.0
  O  O20  1  0.901  0.091  0.928  1.0
  O  O21  1  0.099  0.409  0.428  1.0
  O  O22  1  0.901  0.591  0.572  1.0
  O  O23  1  0.099  0.909  0.072  1.0
  O  O24  1  0.300  0.773  0.624  1.0
  O  O25  1  0.700  0.227  0.376  1.0
  O  O26  1  0.700  0.727  0.124  1.0
  O  O27  1  0.300  0.273  0.876  1.0
[/CIF]
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The structure described by Rb3MnO3 crystallizes in the monoclinic P2_1/c space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. Mn(1) is bonded in a distorted see-saw-like geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 7-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Mn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(3), two equivalent Rb(1), and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Mn(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb3MnO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.898
_cell_length_b   7.046
_cell_length_c   11.858
_cell_angle_alpha   89.997
_cell_angle_beta   90.002
_cell_angle_gamma   98.415
_symmetry_Int_Tables_number   1
_cell_volume   570.132
_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  0.008  0.074  0.274  1.0
  Rb  Rb1  1  0.992  0.926  0.726  1.0
  Rb  Rb2  1  0.008  0.574  0.226  1.0
  Rb  Rb3  1  0.992  0.426  0.774  1.0
  Rb  Rb4  1  0.531  0.504  0.709  1.0
  Rb  Rb5  1  0.531  0.004  0.791  1.0
  Rb  Rb6  1  0.469  0.496  0.291  1.0
  Rb  Rb7  1  0.469  0.996  0.209  1.0
  Rb  Rb8  1  0.341  0.644  0.988  1.0
  Rb  Rb9  1  0.341  0.144  0.512  1.0
  Rb  Rb10  1  0.659  0.856  0.488  1.0
  Rb  Rb11  1  0.659  0.356  0.012  1.0
  Mn  Mn12  1  0.842  0.844  0.004  1.0
  Mn  Mn13  1  0.158  0.656  0.504  1.0
  Mn  Mn14  1  0.158  0.156  0.996  1.0
  Mn  Mn15  1  0.842  0.344  0.496  1.0
  O  O16  1  0.272  0.800  0.384  1.0
  O  O17  1  0.728  0.700  0.884  1.0
  O  O18  1  0.728  0.200  0.616  1.0
  O  O19  1  0.272  0.300  0.116  1.0
  O  O20  1  0.901  0.091  0.928  1.0
  O  O21  1  0.099  0.409  0.428  1.0
  O  O22  1  0.901  0.591  0.572  1.0
  O  O23  1  0.099  0.909  0.072  1.0
  O  O24  1  0.300  0.773  0.624  1.0
  O  O25  1  0.700  0.227  0.376  1.0
  O  O26  1  0.700  0.727  0.124  1.0
  O  O27  1  0.300  0.273  0.876  1.0
[/CIF]
.