The material described by RbV2SbO8 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(3), two equivalent O(5), and four equivalent O(2) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form VO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 19-39°. In the second V site, V(2) is bonded to one O(4), one O(5), and two equivalent O(1) atoms to form VO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. Sb(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(2) atoms to form SbO6 octahedra that share corners with three equivalent V(1)O4 tetrahedra and corners with three equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one V(1) and one Sb(1) atom. In the second O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one V(2), and one Sb(1) atom. In the third O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one V(1), and one Sb(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to two equivalent Rb(1) and one V(1) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1) and one V(2) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Rb(1), one V(2), and one Sb(1) atom. is represented by the CIF card [CIF]
data_RbV2SbO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.657
_cell_length_b   8.830
_cell_length_c   15.017
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   750.018
_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  0.250  0.548  0.386  1.0
  Rb  Rb1  1  0.250  0.952  0.886  1.0
  Rb  Rb2  1  0.750  0.452  0.614  1.0
  Rb  Rb3  1  0.750  0.048  0.114  1.0
  V  V4  1  0.250  0.297  0.025  1.0
  V  V5  1  0.750  0.490  0.217  1.0
  V  V6  1  0.250  0.990  0.283  1.0
  V  V7  1  0.750  0.703  0.975  1.0
  V  V8  1  0.250  0.510  0.783  1.0
  V  V9  1  0.750  0.797  0.475  1.0
  V  V10  1  0.750  0.010  0.717  1.0
  V  V11  1  0.250  0.203  0.525  1.0
  Sb  Sb12  1  0.250  0.819  0.622  1.0
  Sb  Sb13  1  0.250  0.681  0.122  1.0
  Sb  Sb14  1  0.750  0.181  0.378  1.0
  Sb  Sb15  1  0.750  0.319  0.878  1.0
  O  O16  1  0.991  0.106  0.292  1.0
  O  O17  1  0.003  0.764  0.040  1.0
  O  O18  1  0.250  0.309  0.614  1.0
  O  O19  1  0.997  0.236  0.960  1.0
  O  O20  1  0.250  0.627  0.867  1.0
  O  O21  1  0.250  0.616  0.681  1.0
  O  O22  1  0.491  0.606  0.208  1.0
  O  O23  1  0.503  0.236  0.960  1.0
  O  O24  1  0.750  0.691  0.386  1.0
  O  O25  1  0.503  0.264  0.460  1.0
  O  O26  1  0.009  0.894  0.708  1.0
  O  O27  1  0.009  0.606  0.208  1.0
  O  O28  1  0.509  0.106  0.292  1.0
  O  O29  1  0.750  0.127  0.633  1.0
  O  O30  1  0.997  0.264  0.460  1.0
  O  O31  1  0.497  0.736  0.540  1.0
  O  O32  1  0.250  0.489  0.051  1.0
  O  O33  1  0.250  0.884  0.181  1.0
  O  O34  1  0.750  0.373  0.133  1.0
  O  O35  1  0.497  0.764  0.040  1.0
  O  O36  1  0.509  0.394  0.792  1.0
  O  O37  1  0.491  0.894  0.708  1.0
  O  O38  1  0.250  0.873  0.367  1.0
  O  O39  1  0.750  0.511  0.949  1.0
  O  O40  1  0.750  0.384  0.319  1.0
  O  O41  1  0.991  0.394  0.792  1.0
  O  O42  1  0.250  0.191  0.114  1.0
  O  O43  1  0.750  0.989  0.449  1.0
  O  O44  1  0.750  0.809  0.886  1.0
  O  O45  1  0.750  0.116  0.819  1.0
  O  O46  1  0.003  0.736  0.540  1.0
  O  O47  1  0.250  0.011  0.551  1.0
[/CIF]
.
The material described by RbV2SbO8 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(3), two equivalent O(5), and four equivalent O(2) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form VO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 19-39°. In the second V site, V(2) is bonded to one O(4), one O(5), and two equivalent O(1) atoms to form VO4 tetrahedra that share corners with three equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-37°. Sb(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(2) atoms to form SbO6 octahedra that share corners with three equivalent V(1)O4 tetrahedra and corners with three equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one V(1) and one Sb(1) atom. In the second O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one V(2), and one Sb(1) atom. In the third O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Rb(1), one V(1), and one Sb(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to two equivalent Rb(1) and one V(1) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1) and one V(2) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Rb(1), one V(2), and one Sb(1) atom. is represented by the CIF card [CIF]
data_RbV2SbO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.657
_cell_length_b   8.830
_cell_length_c   15.017
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   750.018
_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  0.250  0.548  0.386  1.0
  Rb  Rb1  1  0.250  0.952  0.886  1.0
  Rb  Rb2  1  0.750  0.452  0.614  1.0
  Rb  Rb3  1  0.750  0.048  0.114  1.0
  V  V4  1  0.250  0.297  0.025  1.0
  V  V5  1  0.750  0.490  0.217  1.0
  V  V6  1  0.250  0.990  0.283  1.0
  V  V7  1  0.750  0.703  0.975  1.0
  V  V8  1  0.250  0.510  0.783  1.0
  V  V9  1  0.750  0.797  0.475  1.0
  V  V10  1  0.750  0.010  0.717  1.0
  V  V11  1  0.250  0.203  0.525  1.0
  Sb  Sb12  1  0.250  0.819  0.622  1.0
  Sb  Sb13  1  0.250  0.681  0.122  1.0
  Sb  Sb14  1  0.750  0.181  0.378  1.0
  Sb  Sb15  1  0.750  0.319  0.878  1.0
  O  O16  1  0.991  0.106  0.292  1.0
  O  O17  1  0.003  0.764  0.040  1.0
  O  O18  1  0.250  0.309  0.614  1.0
  O  O19  1  0.997  0.236  0.960  1.0
  O  O20  1  0.250  0.627  0.867  1.0
  O  O21  1  0.250  0.616  0.681  1.0
  O  O22  1  0.491  0.606  0.208  1.0
  O  O23  1  0.503  0.236  0.960  1.0
  O  O24  1  0.750  0.691  0.386  1.0
  O  O25  1  0.503  0.264  0.460  1.0
  O  O26  1  0.009  0.894  0.708  1.0
  O  O27  1  0.009  0.606  0.208  1.0
  O  O28  1  0.509  0.106  0.292  1.0
  O  O29  1  0.750  0.127  0.633  1.0
  O  O30  1  0.997  0.264  0.460  1.0
  O  O31  1  0.497  0.736  0.540  1.0
  O  O32  1  0.250  0.489  0.051  1.0
  O  O33  1  0.250  0.884  0.181  1.0
  O  O34  1  0.750  0.373  0.133  1.0
  O  O35  1  0.497  0.764  0.040  1.0
  O  O36  1  0.509  0.394  0.792  1.0
  O  O37  1  0.491  0.894  0.708  1.0
  O  O38  1  0.250  0.873  0.367  1.0
  O  O39  1  0.750  0.511  0.949  1.0
  O  O40  1  0.750  0.384  0.319  1.0
  O  O41  1  0.991  0.394  0.792  1.0
  O  O42  1  0.250  0.191  0.114  1.0
  O  O43  1  0.750  0.989  0.449  1.0
  O  O44  1  0.750  0.809  0.886  1.0
  O  O45  1  0.750  0.116  0.819  1.0
  O  O46  1  0.003  0.736  0.540  1.0
  O  O47  1  0.250  0.011  0.551  1.0
[/CIF]
.