The compound described by RbSn2Br5 crystallizes in the tetragonal I4/mcm space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent Br(2) and eight equivalent Br(1) atoms. Sn(1) is bonded in a 4-coordinate geometry to two equivalent Br(1) and two equivalent Br(2) atoms. There are two inequivalent Br sites. In the first Br site, Br(2) is bonded to two equivalent Rb(1) and four equivalent Sn(1) atoms to form corner-sharing BrRb2Sn4 octahedra. The corner-sharing octahedral tilt angles range from 0-31°. In the second Br site, Br(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Rb(1) and one Sn(1) atom. is represented by the CIF file [CIF]
data_RbSn2Br5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.472
_cell_length_b   8.472
_cell_length_c   9.636
_cell_angle_alpha   116.079
_cell_angle_beta   116.079
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   541.793
_cell_formula_units_Z   2
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  0.250  0.500  1.0
  Rb  Rb1  1  0.750  0.750  0.500  1.0
  Sn  Sn2  1  0.319  0.181  0.000  1.0
  Sn  Sn3  1  0.819  0.319  0.000  1.0
  Sn  Sn4  1  0.681  0.819  0.000  1.0
  Sn  Sn5  1  0.181  0.681  0.000  1.0
  Br  Br6  1  0.296  0.470  0.266  1.0
  Br  Br7  1  0.796  0.296  0.266  1.0
  Br  Br8  1  0.704  0.530  0.734  1.0
  Br  Br9  1  0.970  0.796  0.266  1.0
  Br  Br10  1  0.470  0.970  0.266  1.0
  Br  Br11  1  0.204  0.704  0.734  1.0
  Br  Br12  1  0.030  0.204  0.734  1.0
  Br  Br13  1  0.000  0.000  0.000  1.0
  Br  Br14  1  0.530  0.030  0.734  1.0
  Br  Br15  1  0.500  0.500  0.000  1.0
[/CIF]
.
The compound described by RbSn2Br5 crystallizes in the tetragonal I4/mcm space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent Br(2) and eight equivalent Br(1) atoms. Sn(1) is bonded in a 4-coordinate geometry to two equivalent Br(1) and two equivalent Br(2) atoms. There are two inequivalent Br sites. In the first Br site, Br(2) is bonded to two equivalent Rb(1) and four equivalent Sn(1) atoms to form corner-sharing BrRb2Sn4 octahedra. The corner-sharing octahedral tilt angles range from 0-31°. In the second Br site, Br(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Rb(1) and one Sn(1) atom. is represented by the CIF file [CIF]
data_RbSn2Br5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.472
_cell_length_b   8.472
_cell_length_c   9.636
_cell_angle_alpha   116.079
_cell_angle_beta   116.079
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   541.793
_cell_formula_units_Z   2
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  0.250  0.500  1.0
  Rb  Rb1  1  0.750  0.750  0.500  1.0
  Sn  Sn2  1  0.319  0.181  0.000  1.0
  Sn  Sn3  1  0.819  0.319  0.000  1.0
  Sn  Sn4  1  0.681  0.819  0.000  1.0
  Sn  Sn5  1  0.181  0.681  0.000  1.0
  Br  Br6  1  0.296  0.470  0.266  1.0
  Br  Br7  1  0.796  0.296  0.266  1.0
  Br  Br8  1  0.704  0.530  0.734  1.0
  Br  Br9  1  0.970  0.796  0.266  1.0
  Br  Br10  1  0.470  0.970  0.266  1.0
  Br  Br11  1  0.204  0.704  0.734  1.0
  Br  Br12  1  0.030  0.204  0.734  1.0
  Br  Br13  1  0.000  0.000  0.000  1.0
  Br  Br14  1  0.530  0.030  0.734  1.0
  Br  Br15  1  0.500  0.500  0.000  1.0
[/CIF]
.