The material described by Rb4Sb2O5 crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(3) and four equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form distorted corner-sharing SbO4 tetrahedra. In the second Sb site, Sb(2) is bonded in a water-like geometry to two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Rb(4), two equivalent Rb(2), two equivalent Rb(3), and one Sb(1) atom to form a mixture of distorted edge, corner, and face-sharing ORb5Sb octahedra. The corner-sharing octahedral tilt angles range from 41-68°. In the second O site, O(2) is bonded to one Rb(3), two equivalent Rb(1), two equivalent Rb(4), and one Sb(2) atom to form a mixture of distorted edge, corner, and face-sharing ORb5Sb octahedra. The corner-sharing octahedral tilt angles range from 41-69°. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_Rb4Sb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.038
_cell_length_b   10.038
_cell_length_c   6.726
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   157.020
_symmetry_Int_Tables_number   1
_cell_volume   264.590
_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  0.907  0.093  0.500  1.0
  Rb  Rb1  1  0.092  0.908  0.000  1.0
  Rb  Rb2  1  0.238  0.762  0.500  1.0
  Rb  Rb3  1  0.763  0.237  0.000  1.0
  Sb  Sb4  1  0.589  0.411  0.500  1.0
  Sb  Sb5  1  0.413  0.587  0.000  1.0
  O  O6  1  0.651  0.349  0.276  1.0
  O  O7  1  0.349  0.651  0.222  1.0
  O  O8  1  0.651  0.349  0.724  1.0
  O  O9  1  0.349  0.651  0.778  1.0
  O  O10  1  0.054  0.946  0.500  1.0
[/CIF]
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The material described by Rb4Sb2O5 crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 5-coordinate geometry to one O(3) and four equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form distorted corner-sharing SbO4 tetrahedra. In the second Sb site, Sb(2) is bonded in a water-like geometry to two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Rb(4), two equivalent Rb(2), two equivalent Rb(3), and one Sb(1) atom to form a mixture of distorted edge, corner, and face-sharing ORb5Sb octahedra. The corner-sharing octahedral tilt angles range from 41-68°. In the second O site, O(2) is bonded to one Rb(3), two equivalent Rb(1), two equivalent Rb(4), and one Sb(2) atom to form a mixture of distorted edge, corner, and face-sharing ORb5Sb octahedra. The corner-sharing octahedral tilt angles range from 41-69°. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_Rb4Sb2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.038
_cell_length_b   10.038
_cell_length_c   6.726
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   157.020
_symmetry_Int_Tables_number   1
_cell_volume   264.590
_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  0.907  0.093  0.500  1.0
  Rb  Rb1  1  0.092  0.908  0.000  1.0
  Rb  Rb2  1  0.238  0.762  0.500  1.0
  Rb  Rb3  1  0.763  0.237  0.000  1.0
  Sb  Sb4  1  0.589  0.411  0.500  1.0
  Sb  Sb5  1  0.413  0.587  0.000  1.0
  O  O6  1  0.651  0.349  0.276  1.0
  O  O7  1  0.349  0.651  0.222  1.0
  O  O8  1  0.651  0.349  0.724  1.0
  O  O9  1  0.349  0.651  0.778  1.0
  O  O10  1  0.054  0.946  0.500  1.0
[/CIF]
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